How hot is to hot? (phone cpu+battery) - General Questions and Answers

I just got a warning from my relatively new (10 day old phone) that it was closing down applications due to a battery temperature of 62.4C and a CPU tempereature of 59C is this normal?
I am not 100% sure which one it was complaining about, I believe the battery temp

What phone?!!

blackhawk said:
What phone?!!
Click to expand...
Click to collapse
Oppo x3 find pro

PaulGWebster said:
Oppo x3 find pro
Click to expand...
Click to collapse
It was not quite it's fault though ... I was doing some cooking and shoved it out of the way on a pyrex shelf that was well ... warmer than I expected
Just hope I have not caused it any serious
harm ... it all appears fine, though it had been sat on the shelf 6 hours while stew was being made >.>

144°F is hot for a cell phone battery, although technically it's close to some Li's max operating temperature range.
Shutdown temperature on Samsung phones for the battery is around 108F. I don't go over 103F battery temp and typically go screen off at a battery temperature 101F.
The cpu can run hotter.
Is the processor running a high load?
If so the big question is what's ramping up the cpu cycle usage? Find the problem app(s) and sort out the problem.
It sucking up internet bandwidth? Bloatware?
What's using the most battery?
Try in safe mode.
You're burning up the battery longevity. Limit the top charge to 80% for now until you resolve this issue. Keep screen brightness at 50% or lower.
Running at or near shutdown temperatures can cause permanent damage. It's especially hard on a fully charged Li battery.
Edit, you posted while I was replying. You may have knock some life out of the battery. I had one over temperature event on a fully charged Note 10+ battery that caused it to lose about 5% of its capacity. It failed a little more then a year latter.
3 things Li's don't like; full charges, high temperatures and charging below 72F.
Never attempt to charge if below 40F.

I agree. The only damage will be to the battery. The phone itself can withstand well over 100c without problems. The internals can take soldering which is 300c ish. The battery however, not too fond of anything above room temp.

at least a one off, won't sit it up there again!
Also seems to have been lucky it does not seem to have had aany affect

blackhawk said:
144°F is hot for a cell phone battery, although technically it's close to some Li's max operating temperature range.
Shutdown temperature on Samsung phones for the battery is around 108F. I don't go over 103F battery temp and typically go screen off at a battery temperature 101F.
The cpu can run hotter.
Is the processor running a high load?
If so the big question is what's ramping up the cpu cycle usage? Find the problem app(s) and sort out the problem.
It sucking up internet bandwidth? Bloatware?
What's using the most battery?
Try in safe mode.
You're burning up the battery longevity. Limit the top charge to 80% for now until you resolve this issue. Keep screen brightness at 50% or lower.
Running at or near shutdown temperatures can cause permanent damage. It's especially hard on a fully charged Li battery.
Edit, you posted while I was replying. You may have knock some life out of the battery. I had one over temperature event on a fully charged Note 10+ battery that caused it to lose about 5% of its capacity. It failed a little more then a year latter.
3 things Li's don't like; full charges, high temperatures and charging below 72F.
Never attempt to charge if below 40F.
Click to expand...
Click to collapse
Ah that is fien I only use C

I wonder if the phone will even tell me if it has lost capacity .... it seemed to charge to 100% this morning, but im not sure if that is 100% of what remains or 100% of its undamanged sate

PaulGWebster said:
Ah that is fien I only use C
Click to expand...
Click to collapse
The Fahrenheit system is better suited for everyday life. It uses whole numbers in the temperature ranges most used real life.
Lol, walking a klick is easier than a mile, mph is faster, and a °C is a lot hotter than a degree in F.
Consider your cpu heatsink broke in and well seated
You will see lost capacity as a decrease of SOT.
The % indicator doesn't see capacity per se but voltage level only.
Keep an eye open for cover bulging; any battery swelling is a failure.
Watch for shifts in charging time and erratic fast charging. As a battery degrades or fails these change, it can be slow or overnight.
After seeing one failure on my heavily used device I decided to just change out the battery every year or so. It's not worth destroying the display over or deal with the loss in capacity. Most batteries aren't that hard to replace once you know how. In a few phones though it's not pretty. The Note 10+ is rated as hard but in reality it's not if done correctly... so actually watch one being replaced in person if possible.

blackhawk said:
The Fahrenheit system is better suited for everyday life. It uses whole numbers in the temperature ranges most used real life.
Lol, walking a klick is easier than a mile, mph is faster, and a °C is a lot hotter than a degree in F.
Consider your cpu heatsink broke in and well seated
You will see lost capacity as a decrease of SOT.
The % indicator doesn't see capacity per se but voltage level only.
Keep an eye open for cover bulging; any battery swelling is a failure.
Watch for shifts in charging time and erratic fast charging. As a battery degrades or fails these change, it can be slow or overnight.
After seeing one failure on my heavily used device I decided to just change out the battery every year or so. It's not worth destroying the display over or deal with the loss in capacity. Most batteries aren't that hard to replace once you know how. In a few phones though it's not pretty. The Note 10+ is rated as hard but in reality it's not if done correctly... so actually watch one being replaced in person if possible.
Click to expand...
Click to collapse
*mumbles kelvin*
I am not sure I will be able to actually see battery swell ... the front of the case is glass, the back is metal and its IP 68 ...
I bet there is an app for actual battery condition out there though!
There certainly is for laptops etc, SOT? something of time .... my guess is surcharge over time?

PaulGWebster said:
*mumbles kelvin*
I am not sure I will be able to actually see battery swell ... the front of the case is glass, the back is metal and its IP 68 ...
I bet there is an app for actual battery condition out there though!
There certainly is for laptops etc, SOT? something of time .... my guess is surcharge over time?
Click to expand...
Click to collapse
It will either push up the display or rear cover. I missed that early warning on my Note 10+ because of the case, oops. I was very lucky it didn't damage the display.
When the battery reaches 80% of what its new capacity was, it's reached the end of its useful service life and is considered degraded. Degraded Li's are much more likely to fail. If it shorts internally it can make a hot mess of the phone. Degraded cells are more likely to form dendrites that puncture the anode/cathode insulation and cause a short. Cold charging can cause Li plating which permanently damages the cell capacity... avoid charging under 72F, although a minimum of 82F is a preferable start charge temperature
Accubattery's charge/discharge logging feature is very useful as is the handy battery temp reading. I firewall block it though.
Screen On Time, I use to find misbehaving apps and gauge the battery over time. My typical usage is 7-13%@hr. 7-8% browser, 10-12% watching vids.

hmmm a 15 minute charge put it at 87% charged

PaulGWebster said:
hmmm a 15 minute charge put it at 87% charged
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Click to collapse
I go by % per minute. On the N10+ when fast charging between 30-70% it runs at 2%@min.
On a bad battery it increases to 3%@min, or fast charging will fail to engage in spite of meeting % and temperature range requirements.
A failing battery will charge too quickly and/or erratically.
Accubattery makes it easy to overview the behavior.
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blackhawk said:
I go by % per minute. On the N10+ when fast charging between 30-70% it runs at 2%@min.
On a bad battery it increases to 3%@min, or fast charging will fail to engage in spite of meeting % and temperature range requirements.
A failing battery will charge too quickly and/or erratically.
Accubattery makes it easy to overview the behavior.
View attachment 5531093
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Click to collapse
Well ... appanrelt my oppo is now reporting 30% is the new 100%

PaulGWebster said:
Well ... appanrelt my oppo is now reporting 30% is the new 100%
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Click to collapse
What do you mean? It lost calibration or capacity?

blackhawk said:
What do you mean? It lost calibration or capacity?
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Click to collapse
It is meant to carry a Li-Po 4500 mAh, non-removable battery, the current rated charge at 100% is 1017mAh

PaulGWebster said:
It is meant to carry a Li-Po 4500 mAh, non-removable battery, the current rated charge at 100% is 1017mAh
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Click to collapse
Where is that coming from?
What's your typical SOT?

Every battery is losing capacity over the time, nobody can hinder this. But this can get slowed down if discharging / charging the battery is correctly done.

Related

[Review] MPJ Extended 6440mah Battery for the Note 4

MPJ 6440mah Extended Battery Review​
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Few days ago I received an extended battery for the Note 4 from MPJ.
The size of the battery is x2.5-x3 bigger than the original Samsung one.
It holds up to 6440mah and the packages comes with an extra back cover for your Note 4.
As we can see from the picture above the design is user friendly and the colours match exactly as they should match. Overall the design is not boring and it is eye catching.
Now the back cover has a gloss finish and it is also thicker and taller so the battery can fit correctly.
It does add an extra bulk to your device but from my perspective I don’t think it’s that much noticeable. Note 4 is already a big phone adding some extra height won’t be a problem, but yes it doesn’t look as good as with the original back cover. I had zero problems in everyday use with that back cover, not even with pockets.
Now let’s start talking about the battery life and how it performs!
Day 1 :
The battery life was just how I expected! As we saw earlier the battery has 6440mah which means 2x3220mah which is the capacity of your Note 4 original battery. With the OEM battery you can get 6 hours of Screen On Time (SOT) in 16-18 hours of total use. With this extended battery I managed to get 12 hours of SOT from the very first day! How awesome is that ? The pictures below talk by them selves.​
Day 2 :
I have charged my phone through the AC. The battery life was awful! Only 7:30 hours of SOT, which can be achieved from the original battery also. I think my AC in that specific room is a little bit faulty that’s why the battery drained out so quickly.
GameBench :
I ran also GameBench to test out how many hours the battery can hold up playing Traffic Racer. I have played for 15 minutes and i lost 3% of battery juice. GameBench claims that the phone can last 6.5 hours playing this game from a full charge.
Day 3 :
I have recharged the battery from 7% to 100% from a power bank and I am at 62% at the moment with 4 hours of SOT and 10 hours of total use. That means the battery is doing better than Day 2.
In total i got 11 hours of SOT and 1 day and 4 hours of total use, which is great! I managed to get 2days with a single charge check out the screenshots below
The battery charges quite fast, i managed to charge it from 8% to 100% in 2 hours and 5 minutes.
​Conclusion :
Pros :
- Battery performs great, it can last 2 days with medium to heavy use and can reach up to 12 hours of SOT
- In very light use it can last up to 3 days. (It drains 2% every 8 hours on idle with WiFi on)
- Full Idle can last up to 5 days (I believe even more)
- Beautiful Design and Colors match perfectly
- Feels great in the hand
- The extra bulk is NOT a problem
- You can buy it either with NFC or without
- The cutouts for the speaker,S Pen, Camera are perfectly aligned in the correct position
- It does add some kind of protection
Cons :
- The back cover has a gloss finish, it would be much better if it had a leather texture like the Original Cover
- Charging on AC is very slow compared to Power Bank
- The battery without the back cover can fell off , its not tight enough.
Overall its a great battery, having 12 hours of SOT is amazing.
The extra bulk was no problem for me instead the phone is heavier and it feels more solid.
I recommend this battery to everyone that uses their Note 4 heavily. People who think that 6 hours of SOT is not enough should get this battery.The only downside is the back cover, I wish it could have a more premium feel although I will continue to use this battery on daily basis
You can buy your own MPJ extended battery from here :
http://www.mpjbattery.com/mpj-6440m...10r4-n910t-n910a-n910v-n910p-eb-bn910bbe.html
NOTE : When restarting the phone you get some extra juice between (10-30%) , that happens because the phone can read up to 3220mah and it gets confused with that extra battery power.​
great review... I have no experience with extended battery but maybe i am going to try
chaRast said:
great review... I have no experience with extended battery but maybe i am going to try
Click to expand...
Click to collapse
Thank you mate!
You should give it a try! 12hours of SOT is just crazy
Sent from my SM-N910F using XDA Free mobile app
patriotaki said:
NOTE : .....the phone can read up to 3220mah and it gets confused with that extra battery power.
Click to expand...
Click to collapse
I do appreciate your review but that particular statement is not true at all because when you run the battery sensor display codes display stats and battery tests results are clearly denoted in voltage which is the key component in determining the battery life in percentage, not just in phones but world wide industrial and domestic battery applications. There's no way it reads in mAh. I studied battery technologies and applications in campus and in all our test runs about batteries the voltage was the key component in determining battery % never the mAh capacity which also varies infinitely because of the apparent resistance the circuit in it will give. Therefore you cannot use a infinitely varying component to determine a definite component.. NOT POSSIBLE! Voltage is still used to date in all battery run applications as the key determining factor in battery life. Just study how the intelligent battery charger works and you will see it clearly for yourself, that in the note 4 the 9v fast charge is actually the bulk phase in charging the battery, then comes the absorption stage and finally float which both require the 5v charge to complete these two processes that follow. So effectively not requiring the 9v all the way through and dropping to the regular 5v which effectively charges the battery very very well to within 90-95% of it's theoretical capacity. There's no way the phone reads in mAh because the A in mAh is totally load dependent as I have pointed it out previously.
The process you are observing there is taking place exclusively in the battery and is designated as the Redox reaction that when a battery suddenly is unloaded with a load requiring a significant current to run, the process of providing electrons still continues but because it doesn't discharge through the load (as it has been removed), electrons now build up at the cathode so that when the phone now turns ON, it finds a higher potential difference between the anode and the cathode which in turn the phone reads as a higher voltage hence translates that to higher % battery life.
Proof: leave any set of discharged batteries lying around for a while then come later and measure their voltage, tell me whether the voltage that you left them with is the same as it reads now. That is proof of the Redox reaction in ALL batteries.
Purchase one from here
http://www.mpjbattery.com/mpj-6440m...10r4-n910t-n910a-n910v-n910p-eb-bn910bbe.html
Sent from my SM-N910F using XDA Free mobile app
I had a bad experience with my order from these guys. My batter for my S5 never came to me. How was your shipping experience with MPJ?
i root SGH i777 said:
I had a bad experience with my order from these guys. My batter for my S5 never came to me. How was your shipping experience with MPJ?
Click to expand...
Click to collapse
Pretty fast From Germany to Greece 2 weeks
Sent from my SM-N910F using XDA Free mobile app
Any nice case out there for this extended battery??
patriotaki said:
Thank you mate!
You should give it a try! 12hours of SOT is just crazy
Sent from my SM-N910F using XDA Free mobile app
Click to expand...
Click to collapse
I read your review and it looks quite interesting. I have tried many "fake" extended batteries, are sure this is the one ?
Do they ship fast in Athens ?
Kernel ranger said:
I do appreciate your review but that particular statement is not true at all because when you run the battery sensor display codes display stats and battery tests results are clearly denoted in voltage which is the key component in determining the battery life in percentage, not just in phones but world wide industrial and domestic battery applications. There's no way it reads in mAh. I studied battery technologies and applications in campus and in all our test runs about batteries the voltage was the key component in determining battery % never the mAh capacity which also varies infinitely because of the apparent resistance the circuit in it will give. Therefore you cannot use a infinitely varying component to determine a definite component.. NOT POSSIBLE! Voltage is still used to date in all battery run applications as the key determining factor in battery life. Just study how the intelligent battery charger works and you will see it clearly for yourself, that in the note 4 the 9v fast charge is actually the bulk phase in charging the battery, then comes the absorption stage and finally float which both require the 5v charge to complete these two processes that follow. So effectively not requiring the 9v all the way through and dropping to the regular 5v which effectively charges the battery very very well to within 90-95% of it's theoretical capacity. There's no way the phone reads in mAh because the A in mAh is totally load dependent as I have pointed it out previously.
The process you are observing there is taking place exclusively in the battery and is designated as the Redox reaction that when a battery suddenly is unloaded with a load requiring a significant current to run, the process of providing electrons still continues but because it doesn't discharge through the load (as it has been removed), electrons now build up at the cathode so that when the phone now turns ON, it finds a higher potential difference between the anode and the cathode which in turn the phone reads as a higher voltage hence translates that to higher % battery life.
Proof: leave any set of discharged batteries lying around for a while then come later and measure their voltage, tell me whether the voltage that you left them with is the same as it reads now. That is proof of the Redox reaction in ALL batteries.
Click to expand...
Click to collapse
Not entirely true. While not all devices will use current sensing for measuring consumption of power, voltage alone is not an accurate reading of a lithium battery's state of charge. The discharge curve between 3.7V nominal and 3.4 is the bulk of the battery's capacity. Yes it may be 4.2V at full charge, but as soon as you put a load that will quickly drop to 4V, even 3.9V depending on screen brightness or total current draw (heavy CPU activity, etc). It will then remain at that nominal voltage level (roughly 3.7V) through 60% or more of the battery's capacity. Voltage drop under load can be used, but you still need to know what that load is. If I have read correctly, phones that do not have current sensing capabilities have a "table" that outlines what parameters will equate to what mA current draw. IE: 75% screen brightness with 20% CPU load is about equal to 450mA current draw (pulling those figures out of my a** here, not factual)
I couldn't find the exact picture I was looking for, but here is an example of lithium based batteries' discharge graphs. Granted these are under constant load scenarios, but the point is made. Voltage alone is not an accurate reading of a lithium (whatever, ion, FE, cobalt, etc) battery. I know these aren't lithium ion batteries so the voltage levels are different, but the graph looks very similar, just different voltages. Again all these graphs are all under a constant load scenario, something our phones do NOT have the privelage of doing. Current load is always changing, from screen brightness, cellular/GPS radios, CPU/GPU activity, etc.
The Redox reaction is only applicable in a no load scenario. Discharge a 1S 1000mah battery at 1 Amp for 30 minutes. Let's assume everything is perfect, you will have consumed 500mah of power, and voltage will probably be about 3.5V under load, and 3.7 under rest. Let it sit (at the same temperature it was under load, say 35C), and come back a little later. Yes voltage may have climbed to 3.8V but as soon as you put a load it will quickly drop.
I'm not fully educated on how phones determine state of charge, but I'm guessing it is more software based on a combination of voltage level, and ASSUMED current draw based on those "tables" I mentioned above. Some phones do actually have current sensing built in. I think some of my older HTC phones would actually give you mA current draw, and could log mAH consumption.
"Smart charging" or whatever you want to call it is merely limiting current once cell voltage reaches 4.2V. This is why the last 20% of a charge takes longer than the first 80%. If voltage rises, current drops. Don't see the correlation to that in terms of measuring a discharge capacity.
Temperature also plays a large role in a lithium's voltage level. I'm an avid R/C guy, flying helicopters mainly. We use large 6 Cell 5000mah lithium polymer batteries with 35C discharge capabilities. If you were to charge your battery in the garage in the winter, and the cells were all balanced at 4.2V per cell after charging. You bring that battery inside to a toasty house that voltge could climb to 4.25 or 4.3/cell. Not a good thing but it allowed you to squeeze a little more capacity into your battery for that extra 10 seconds of flying. Granted our motors are pulling upwards of 10Kw (yes, 10,000 watts or more) so I'm sure it was negligible, but still it made you feel like you were getting more. Getting off topic here, sorry.
http://www.mpoweruk.com/soc.htm
Problems can occur with some cell chemistries however, particularly Lithium which exhibits only a very small change in voltage over most of the charge/discharge cycle. The following graph shows the discharge curve for a high capacity Lithium-ion cell. This is ideal for the battery application in that the cell voltage does not fall appreciably as the cell is discharged, but for the same reason, the actual cell voltage is not a good measure of the SOC of the cell.
Click to expand...
Click to collapse
---------- Post added at 12:34 PM ---------- Previous post was at 12:21 PM ----------
patriotaki said:
MPJ 6440mah Extended Battery Review​
Click to expand...
Click to collapse
Was there any documentation with the battery that stated whether or not you could use fast charging with this battery? I'm assuming since you said it charged in a little over 2 hours that you kept fast charging enabled.
I'm looking for an extend battery, the zero lemon is just too big for me so I like this one better.
Only downside is not being able to find a diztronic style "case" for it any longer. Just a slim rubber case similar to the diztronic that I love so much.
---------- Post added at 12:37 PM ---------- Previous post was at 12:34 PM ----------
Just ordered it
Also FYI this battery is on Amazon prime WITH NFC for $26.99
http://www.amazon.com/Extended-Batt...1454348203&sr=8-3&keywords=MPJ+note+4+battery
Received my MPJ Battery today, unfortunately the case doesn't close on all 4 sides. No matter how I do it, either the left side or the right side won't snap shut. Hopefully the replacement works better. Can't wait to see how much SOT I can get though. Had an extended battery with my Note 2 and loved it.
poor_red_neck said:
Not entirely true. While not all devices will use current sensing for measuring consumption of power, voltage alone is not an accurate reading of a lithium battery's state of charge. The discharge curve between 3.7V nominal and 3.4 is the bulk of the battery's capacity. Yes it may be 4.2V at full charge, but as soon as you put a load that will quickly drop to 4V, even 3.9V depending on screen brightness or total current draw (heavy CPU activity, etc). It will then remain at that nominal voltage level (roughly 3.7V) through 60% or more of the battery's capacity. Voltage drop under load can be used, but you still need to know what that load is. If I have read correctly, phones that do not have current sensing capabilities have a "table" that outlines what parameters will equate to what mA current draw. IE: 75% screen brightness with 20% CPU load is about equal to 450mA current draw (pulling those figures out of my a** here, not factual)
I couldn't find the exact picture I was looking for, but here is an example of lithium based batteries' discharge graphs. Granted these are under constant load scenarios, but the point is made. Voltage alone is not an accurate reading of a lithium (whatever, ion, FE, cobalt, etc) battery. I know these aren't lithium ion batteries so the voltage levels are different, but the graph looks very similar, just different voltages. Again all these graphs are all under a constant load scenario, something our phones do NOT have the privelage of doing. Current load is always changing, from screen brightness, cellular/GPS radios, CPU/GPU activity, etc.
The Redox reaction is only applicable in a no load scenario. Discharge a 1S 1000mah battery at 1 Amp for 30 minutes. Let's assume everything is perfect, you will have consumed 500mah of power, and voltage will probably be about 3.5V under load, and 3.7 under rest. Let it sit (at the same temperature it was under load, say 35C), and come back a little later. Yes voltage may have climbed to 3.8V but as soon as you put a load it will quickly drop.
I'm not fully educated on how phones determine state of charge, but I'm guessing it is more software based on a combination of voltage level, and ASSUMED current draw based on those "tables" I mentioned above. Some phones do actually have current sensing built in. I think some of my older HTC phones would actually give you mA current draw, and could log mAH consumption.
"Smart charging" or whatever you want to call it is merely limiting current once cell voltage reaches 4.2V. This is why the last 20% of a charge takes longer than the first 80%. If voltage rises, current drops. Don't see the correlation to that in terms of measuring a discharge capacity.
Temperature also plays a large role in a lithium's voltage level. I'm an avid R/C guy, flying helicopters mainly. We use large 6 Cell 5000mah lithium polymer batteries with 35C discharge capabilities. If you were to charge your battery in the garage in the winter, and the cells were all balanced at 4.2V per cell after charging. You bring that battery inside to a toasty house that voltge could climb to 4.25 or 4.3/cell. Not a good thing but it allowed you to squeeze a little more capacity into your battery for that extra 10 seconds of flying. Granted our motors are pulling upwards of 10Kw (yes, 10,000 watts or more) so I'm sure it was negligible, but still it made you feel like you were getting more. Getting off topic here, sorry.
http://www.mpoweruk.com/soc.htm
---------- Post added at 12:34 PM ---------- Previous post was at 12:21 PM ----------
Was there any documentation with the battery that stated whether or not you could use fast charging with this battery? I'm assuming since you said it charged in a little over 2 hours that you kept fast charging enabled.
I'm looking for an extend battery, the zero lemon is just too big for me so I like this one better.
Only downside is not being able to find a diztronic style "case" for it any longer. Just a slim rubber case similar to the diztronic that I love so much.
---------- Post added at 12:37 PM ---------- Previous post was at 12:34 PM ----------
Just ordered it
Also FYI this battery is on Amazon prime WITH NFC for $26.99
http://www.amazon.com/Extended-Batt...1454348203&sr=8-3&keywords=MPJ+note+4+battery
Click to expand...
Click to collapse
You have a good expo because as you say not all phones use precise mechanisms to determine battery charge but for a flagship model like the Note 4 we can't afford that kind of mediocrity. I was only addressing the part where the battery seems to acquire charge after a reboot which temporalily actually occurs due to the temp no load situation.
After reading all of the comments i decided and ordered the battery. Can anyone inform me, when the battery arrives, do i use it until it drains and charge for 8-10 hours ? or do i put on charge immediately and after 8-10 hours use it ?
nikoldm said:
After reading all of the comments i decided and ordered the battery. Can anyone inform me, when the battery arrives, do i use it until it drains and charge for 8-10 hours ? or do i put on charge immediately and after 8-10 hours use it ?
Click to expand...
Click to collapse
I also ordered this battery after reading this review because my note4 had an insane battery loss about 20% in 1 hours!!!

Battery Health

Hello. U11 is 2 days old, i have three filling (battery charges) cycles. This application (AccuBattery) shows 94% of capacity, instead of 100% and 2831mAh.
Is this normal or..?
Stock rom, unrooted..
Any sugestion for this weird problem?
Tnx
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zujko said:
Hello. U11 is 2 days old, i have three filling (battery charges) cycles. This application (AccuBattery) shows 94% of capacity, instead of 100% and 2831mAh.
Is this normal or..?
Stock rom, unrooted..
Any sugestion for this weird problem?
Tnx
Click to expand...
Click to collapse
I think it's normal.
I also tried that app to know the battery's health. My result was 90% (I have the phone from one week lol). I think it can get a more accurate number as you make charge cycles.
At the end, at least as far as I'm concerned, I decided to uninstall it without making too much problems, but I try to keep the battery between 30-80%.
Hope this helps
Only one single charge cannot verify. The number you got is probably false.
Try more charges. Mine stabled at 102%...weird
you can never have the actual capacity
simply because the calculation is missing the actual amperage output
it only calculates based on the voltage so it is never 100 percent correct
also the battery is not charged to 3000 mah to the full capacity there is always 100-200 mah less for safety and durability
AlMaghraby said:
you can never have the actual capacity
simply because the calculation is missing the actual amperage output
it only calculates based on the voltage so it is never 100 percent correct
also the battery is not charged to 3000 mah to the full capacity there is always 100-200 mah less for safety and durability
Click to expand...
Click to collapse
You have proof of this? These batteries are plenty safe as long as they aren't overcharging and while charging your battery to 100% does indeed stress it out and decrease charge/discharge cycles, advertising 3000mAh and only giving 2800-2900mAh is false advertisement.
I use high drain 25 amp 3000mAh 18650s daily and they're unprotected IMR cells. Been on my same Samsung 25Rs for almost a year with no noticeable degradation despite the fact that they pump a hell of a lot more juice than my phone does. Battery degradation is due more to cheap cells than actually charging them to capacity. Overcharging, on the other hand, obviously is extremely dangerous but the phone has safeguards for that and that's also why rapid charging shuts off as the battery gets a higher charge because that's when they start to get hot (my 18650s charge at 0.67A each until the mod hits 129.1F board temp which causes my mod to pull the amperage back to around 0.58 when nearing the end - my mod can do that with an 80 dollar board and the same circuitry exists in HTC phones).
EtherealRemnant said:
You have proof of this? These batteries are plenty safe as long as they aren't overcharging and while charging your battery to 100% does indeed stress it out and decrease charge/discharge cycles, advertising 3000mAh and only giving 2800-2900mAh is false advertisement.
I use high drain 25 amp 3000mAh 18650s daily and they're unprotected IMR cells. Been on my same Samsung 25Rs for almost a year with no noticeable degradation despite the fact that they pump a hell of a lot more juice than my phone does. Battery degradation is due more to cheap cells than actually charging them to capacity. Overcharging, on the other hand, obviously is extremely dangerous but the phone has safeguards for that and that's also why rapid charging shuts off as the battery gets a higher charge because that's when they start to get hot (my 18650s charge at 0.67A each until the mod hits 129.1F board temp which causes my mod to pull the amperage back to around 0.58 when nearing the end - my mod can do that with an 80 dollar board and the same circuitry exists in HTC phones).
Click to expand...
Click to collapse
assuming that you mean a proof for battery capacity
yes you get a 3000 mah battery but you can't chargr it to 3000
same as when you get a 64 gb storage but you can't use them all because the built in software takes space this example is an answer to you question about false advertisement.
taking my laptop for example it never charges to the mah capacity even when the software is stating 100 percebt charge
AlMaghraby said:
assuming that you mean a proof for battery capacity
yes you get a 3000 mah battery but you can't chargr it to 3000
same as when you get a 64 gb storage but you can't use them all because the built in software takes space this example is an answer to you question about false advertisement.
taking my laptop for example it never charges to the mah capacity even when the software is stating 100 percebt charge
Click to expand...
Click to collapse
Your laptop battery is defective then. Laptop batteries are simply packs of 18650 cells arranged together. They're likely cheap cells.
My 3000mAh LG HG2 20A 18650 batteries are rated for 3000mAh but one is 3080mAh and the other is 3070mAh.
It is false advertisement to sell a battery with a 3000mAh battery and then cut the cell off before it is fully charged. If they want to do that, they need to put a 3200mAh battery in and cut it off at 3000mAh which would be smart anyway considering that cell phones do something horrible for lithium ion technology - they continue to trickle charge when the battery is full. Lithium ion batteries don't like to be at full charge and will degrade faster from being kept there which is why it's never recommended to leave your battery on the charger overnight.
2868mah, but it's an estimated figure according to the app and based off one charge.
I get around 6-8 hrs SOT so I'm not complaining.
Now is little better
Charging to computer (overnight).
Slow charge is better than QC 3.0, for health
Sent from my HTC U11 using Tapatalk
you can use battery charge limit to prevent overcharging
I limit it to 95 percent
just a simple tweak in the app's settings to choose battery charging_enabled

So I guess my battery is dying right? I get some very crap battery life now

I got this phone in January 2018. So, at this point it is almost 3 years old (just over 2 years and 9 months) and the battery life is pretty appalling now. I get perhaps half a day with a full charge. The main issue seems to be turning on WiFi/Data. As long as the WiFi is off which is usually in the night, the battery drain is relatively minimal. But the moment I turn WiFi on in the morning, the battery drains like crazy regardless of what I do with it. I usually just let it sit on my desk doing mostly nothing. I stay at home 24x7 nowadays due to the Covid-19 lockdown, and work from home. So no poor or uneven network signal. In terms of regular usage, it is a few minor phone calls via WiFi mostly, and a bit of solitaire games for an hour or so.
Take a look at the screenshots of the battery drain and life. Is there something I can do to enhance the battery life of this? Make it drain less with WiFi?
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If the images do not appear above, click here and here for the two images.
There is also a battery replacement service here in London for a reasonable £60. I am wondering if I should do that or simply buy a new phone as this phone has anyway reached the end of life software support.
If it was me, I would be getting a new phone. Almost 3 years old. Time for a change. I've got the 4XL, but you could easily move to the new 4a, or 5 series. Good luck with your decision.
Sent from my Pixel 4 XL using Tapatalk
Sadly I am just not impressed with the new Pixels. The idea of having a weaker, less power hungry CPU and a bigger battery is nice, but the price is just unreasonably high. I wish it was cheaper especially given the competition. I have been searching for my perfect next phone and I think I should switch to something new soon as well. My top priority now is a decent price and a great battery.
The new P5 has a 4080ma LiPo battery. Haven't read much about the difference between LiOn and LiPo batteries. Not easy finding the perfect phone. Best of luck.
Sent from my Pixel 4 XL using Tapatalk
Here is a nice comparison between Li-ion and Li-Po batteries: https://www.androidauthority.com/lithium-ion-vs-lithium-polymer-whats-the-difference-27608/
Seems like Li-Po has low self discharge so it will hold a charge longer. But also has shorter life span, so I am guessing fewer charge cycles than even the current batteries. Interesting but unfortunate drawbacks. Oh, I wish for the day when we make a true battery breakthrough and have batteries with insane charge density in tiny packages and great life spans! Some day!
If I were you, I would get a battery replacement. No need to upgrade, especially when the price for the new pixel 5 is exceedingly high and disproportionate. I would then install a custom ROM so that you can get the latest security updates. That's what I'm going to do, I will wait for the next Pixel generation. If it's not any better, I may hold out longer. This is a fantastic phone that works ridiculously well despite the years, and we should avoid falling into needless consumerism. Just my two cents...
Enviado desde mi Pixel 2 mediante Tapatalk
I am considering that as well. I am not thrilled by the options I have at the moment. I like that the Pixel 2 is nice and small and it works well for my everyday use except the battery. And the battery is also not a big concern at the moment as I am mostly at home and can keep it charged regularly. And if I go out, I always take my battery pack with me to top up the phone if it goes too low. I am thinking I will continue with this for more time and even avoid a battery replacement, which will save me money and avoid any potential damage to the phone due to a poor job of replacing the battery.
What Android are you running, 11? Mine had horrible battery life, like 50% in 15 minutes because of an issue with a radio app on my phone
I am on Android 11. I just uninstalled a bunch of apps and the idle drain with WiFi on has reduced significantly. I will check how the battery life is now.
By chance, is your wifi and bluetooth scanning enabled in Location? That scanning can drain the battery.
Sent from my Pixel 4 XL using Tapatalk
WiFi scanning was on but not bluetooth. I will continue to track the battery life.
I got my Pixel 2 in November of 2017; I haven't noticed a significant decline in battery life, although it does seem that Android 11 is a lot more battery hungry, especially on standby.
This might be due to Android 11. The battery life is horrible. I also thought the same thing, bought a new battery and turns out it's a software issue.
Update: So I did end up putting in a new battery for my Pixel 2. It cost me £60 to do so here in London via iSmash, the official authorized repair partner. Given the retail price of the battery is around £10, the labour cost was £50 which is worth it as I would have damaged the phone if I tried it myself (I nearly did that with an old Droid many years ago).
So I got it repaired on 1 Dec. I have been testing the battery for a week and I do feel that the battery life has improved. I now have to charge only once a day or so after moderate use, kind of like what it was at the start. I do feel that perhaps the Android 11 update is still causing more drain than normal however, but still better than before.
I am using the AccuBattery app and before replacing the battery, the app approximated my battery health at around 1800-1900mAh compared to the design capacity of 2700mAh. Now, it is approximating it at around 2600mAh if I consider the latest charge cycle from 14% to 100% (+86% took about 2251mAh). So I am guessing that the battery replacement was well done and successful. I am also able to make my phone last longer even without turning on battery saver all the time. However, there is still some idle drain when I don't do much but have WiFi/data turned on. I am attaching screenshots. I wonder if this is software issue due to the latest Android 11.
So now, I have 2 questions:
Is there a better app than AccuBattery to get a sense of battery life/capacity? AccuBattery takes many charge cycles to get to a decent estimate.
Is there sometime I can do regarding the battery drain due to the latest Android 11 update? I believe lot of people have raised this complaint and I too noticed an increase in battery drain after the Android 11 update, despite the aging battery. And I seem to notice the same drain with the new battery now.
V0latyle said:
I got my Pixel 2 in November of 2017; I haven't noticed a significant decline in battery life, although it does seem that Android 11 is a lot more battery hungry, especially on standby.
Click to expand...
Click to collapse
Also, that is pretty amazing! You used your phone for 3 years and still did not notice significant decline in battery life!? Do you charge more carefully, such as only charge to 80% or 90% and not let it drain below 30-40% or something to extend the lifespan of the battery? Also, do you use the phone very sparingly, or is it not your daily driver? Do let us know what you do and how you managed to take care of the phone so well it lasted this long. That would be very useful information!
Meh I wouldn't have updated it.
Scope storage sucks.
If it's an LI:
Limit charges to 80% or at least stop at 90%
Don't regularly discharge below 20%
Li's like small frequent midrange charge cycles; 40-65% is ideal.
Avoid high temps especially with a fully charged cell; high cell voltage and high temperature degrade the cells much more rapidly.
Never charge a cold battery; 72-90°F is best.
litetaker said:
Also, that is pretty amazing! You used your phone for 3 years and still did not notice significant decline in battery life!? Do you charge more carefully, such as only charge to 80% or 90% and not let it drain below 30-40% or something to extend the lifespan of the battery? Also, do you use the phone very sparingly, or is it not your daily driver? Do let us know what you do and how you managed to take care of the phone so well it lasted this long. That would be very useful information!
Click to expand...
Click to collapse
Sorry for the late answer.
I am a heavy user, when I'm at work I generally have my phone on the charger. I plug it in all night too. Standby battery life is pretty good; Android 11 does seem to be more battery hungry, so if I don't use my phone at all, I might get 30 ish hours of life. But, with realistic use, it will probably last me around 8 hours, with the amount of video streaming I do.
I have never paid attention to charge cycles. Phone software handles that, and you'll find that most li-ion battery management only charges to about 80% of chemical capacity to extend the life of the battery. Tesla battery packs will last up to 500,000 miles, because the management software limits the usable charge to about 40% of the cells' actual capacity. Phone software does a similar thing, where 0% is actually about 40% of the battery's capacity, and 100% is actually about 80%. Your phone lives its whole life in that 40% of usable capacity. Maintaining a state of charge higher than 80%, or discharging below 40%, shortens battery life.
I'm not going to pretend that my battery still performs like new, and I wouldn't easily be able to determine that anyway - with the age of the battery and the software updates, it will never be the same as it was.
If I don't **** off at work, or I am not antisocial when we go over to friends' houses, it'll last quite a while, but given my heavy use I tend to keep it on a charger anyway.
blackhawk said:
Meh I wouldn't have updated it.
Scope storage sucks.
If it's an LI:
Limit charges to 80% or at least stop at 90%
Don't regularly discharge below 20%
Li's like small frequent midrange charge cycles; 40-65% is ideal.
Avoid high temps especially with a fully charged cell; high cell voltage and high temperature degrade the cells much more rapidly.
Never charge a cold battery; 72-90°F is best.
Click to expand...
Click to collapse
Don't have to worry about this. Firmware and software manages battery state of charge. Use it normally.
Also, the "proper" temperature for a lithium battery is between 40 and 80 degrees F. They will retain a better charge at room temperature because low temperature increases internal resistance, but you are not likely to damage anything. Charging, or maintaining a high state of charge at temperatures above 90 degrees shorten the life of the battery.
V0latyle said:
Don't have to worry about this. Firmware and software manages battery state of charge. Use it normally.
Also, the "proper" temperature for a lithium battery is between 40 and 80 degrees F. They will retain a better charge at room temperature because low temperature increases internal resistance, but you are not likely to damage anything. Charging, or maintaining a high state of charge at temperatures above 90 degrees shorten the life of the battery.
Click to expand...
Click to collapse
While you can use LI cells in low temps without harming them, charging them at low temps Li plating can occur which will permanently degrade them. The temp I saw stated was >80F.
Others stated standard temp for charging/testing Li's for longevity was a temp of 72F; I wouldn't go much below that when starting a charge.
&
Somewhere below 50-65F Samsung fast charging will revert to slow charging to protect the cell.
You won't find that in literature but you can observe it.
V0latyle said:
I have never paid attention to charge cycles. Phone software handles that, and you'll find that most li-ion battery management only charges to about 80% of chemical capacity to extend the life of the battery. Tesla battery packs will last up to 500,000 miles, because the management software limits the usable charge to about 40% of the cells' actual capacity. Phone software does a similar thing, where 0% is actually about 40% of the battery's capacity, and 100% is actually about 80%. Your phone lives its whole life in that 40% of usable capacity. Maintaining a state of charge higher than 80%, or discharging below 40%, shortens battery life.
Click to expand...
Click to collapse
I am not sure the software on our phones does anything quite as aggressive as you are suggesting, i.e. charge only till 80% and let you use it only till 40% of the physical capacity. Given the rated capacity of the internal batteries in phones, which can be easily identified via a teardown and how much charge is actually done based on measurements, unless the phone has a setting (some phones nowadays allow you to set an upper limit to the amount of charging to 80% or 90%) most phones including the Pixel 2 do NOT do any such kind of battery management. The Pixel 2 does let you charge till 100% of the battery's actual capacity and let's you drain it pretty much completely as well. So I am not sure what info made you believe that it does such battery management.
Tesla's etc. I can believe do such battery management as it is crucial for the longevity of a very expensive car.

New battery health

I’m curious about battery health as reported by Accubattery (I can’t find the battery health stat in the phone itself). I’ve had the 4a 5-6 days and the health is at 97% (3048/3140). Is that normal?
I had some issues with battery drain at first, getting around 4.5 hours (a few people here pointed out it’s likely due to it not being on wifi). But I did a factory reset and it seems to be doing better (now I’m on track for ~6).
I‘ve read battery health numbers aren’t super accurate so I imagine some fluctuation is normal. Just trying to verify whether I’ve lost 3% battery life in a week. Thanks!
I bought it a month ago. Holds at 104% for 3 weeks, and recently dropped sharply to 99%. I think you shouldn't believe the program
Li's like being use in their mid range; short midrange cycles/more frequent partial charges.
High cell voltage and high temperatures cause premature wear. Accubattery is encouraging this partial charge strategy although it's not necessary accurate.
Don't charge your battery to 100% very often.
80% is better, 64-70% is best.
Don't discharge past 20%, a low limit of 30-40% is best.
Never charge if battery is below 40F.
Avoid starting a charge if battery is below 72F whenever possible.
Low temp charging can cause Li plating which will permanently degrade the cell.
Avoid charging over 100F.
75-90F is best
Fast charging causes no harm.
cool thanks. accubattery went from 97% to 98% a few days later so I don't think it's super accurate. I've never had it say 100% on this new battery though so I'm worried it's a bit low but oh well. Thanks all.
suda space said:
cool thanks. accubattery went from 97% to 98% a few days later so I don't think it's super accurate. I've never had it say 100% on this new battery though so I'm worried it's a bit low but oh well. Thanks all.
Click to expand...
Click to collapse
First you need to set whatever is the actual capacity of the battery. Accubattery will use the capacity that the Android is reporting, typically 4170 for a 4300 ma battery in the Note 10+ case.
It's wrong; but Android is the culprit in this case.
Accubattery is a very useful apk. It adjustable alert when charged to X% is great. It also logs net power charging/discharging. I use it for battery temp too.
People expect too much out of it.
I doubt it's low, in fact it may well have a slightly higher than rated capacity. Take care of it and you can milk years out of it. Frequent midrange charges, and watch the heat.
If the phone battery temp when using gets into the high 90's, cool it down. I use a damp microfiber cloth or rag.
At a battery temp of 102F I screen off the device.
blackhawk said:
Li's like being use in their mid range; short midrange cycles/more frequent partial charges.
High cell voltage and high temperatures cause premature wear. Accubattery is encouraging this partial charge strategy although it's not necessary accurate.
Don't charge your battery to 100% very often.
80% is better, 64-70% is best.
Don't discharge past 20%, a low limit of 30-40% is best.
Never charge if battery is below 40F.
Avoid starting a charge if battery is below 72F whenever possible.
Low temp charging can cause Li plating which will permanently degrade the cell.
Avoid charging over 100F.
75-90F is best
Fast charging causes no harm.
Click to expand...
Click to collapse
Info is misleading, outdated (overlooks recent battery refinements) and originally based on much larger packs used in laptops, etc. Mobile devices discharge frequently, rarely spending significant time at high charge levels. Laptops are often tethered to a desk and charger for extended periods.
While there's nothing amiss with avoiding extremes one should not feel compelled to carry around a damp microfiber cloth (lol) to cool the phone when it reaches body temp. Yep, battery capacity may drop 10% over the life of the device by not getting panties in a knot over thermals. It's just a phone ...
DB126 said:
Info is misleading, outdated (overlooks recent battery refinements) and originally based on much larger packs used in laptops, etc. Mobile devices discharge frequently, rarely spending significant time at high charge levels. Laptops are often tethered to a desk and charger for extended periods.
While there's nothing amiss with avoiding extremes one should not feel compelled to carry around a damp microfiber cloth (lol) to cool the phone when it reaches body temp. Yep, battery capacity may drop 10% over the life of the device by not getting panties in a knot over thermals. It's just a phone ...
Click to expand...
Click to collapse
This has nothing to do with laptops although on my e6400 you can software disable battery charging at will.
The Li battery weakness is it's user. Any time it's taken to a full charge you are doing substantially more damage than a 64% top off. One full charge cycle vs >1/20% a full charge cycle.
That's a lot of lost life.
You'll get about 2 years out of it or less with your plan if you're a heavy user.
Rather inept management when you could get years more...
blackhawk said:
This has nothing to do with laptops although on my e6400 you can software disable battery charging at will.
The Li battery weakness is it's user. Any time it's taken to a full charge you are doing substantially more damage than a 64% top off. One full charge cycle vs >1/20% a full charge cycle.
That's a lot of lost life.
You'll get about 2 years out of it or less with your plan if you're a heavy user.
Rather inept management when you could get years more...
Click to expand...
Click to collapse
We'll agree to disagree on the applicability and merits of aggressive battery management on modern mobile devices. I am quite familiar with the arguments but have no stomach to rehash the details (which matter). Best wishes, mate.
DB126 said:
We'll agree to disagree on the applicability and merits of aggressive battery management on modern mobile devices. I am quite familiar with the arguments but have no stomach to rehash the details (which matter). Best wishes, mate.
Click to expand...
Click to collapse
Fair enough... the devil is in the details.
I'll see how my 10+ does. Lol I may end up tearing it down to replace the bloody charging port before the battery needs replacement
A battery replacement isn't the end of the world.
Cheers, mate.
Hi
I bought my phone 4 weeks ago . I am currently using Realme 8 pro.
In accubattery it shows i have 89% battery health. Is accubattery accurate?
It makes me concern why my battery sustaining so fast .
blackhawk said:
Fair enough... the devil is in the details.
I'll see how my 10+ does. Lol I may end up tearing it down to replace the bloody charging port before the battery needs replacement
A battery replacement isn't the end of the world.
Cheers, mate.
Click to expand...
Click to collapse
Hi
I bought my phone 4 weeks ago . I am currently using Realme 8 pro.
In accubattery it shows i have 89% battery health. Is accubattery accurate?
It makes me concern why my battery sustaining so fast .
Mi Nabil said:
Hi
I bought my phone 4 weeks ago . I am currently using Realme 8 pro.
In accubattery it shows i have 89% battery health. Is accubattery accurate?
It makes me concern why my battery sustaining so fast .
Click to expand...
Click to collapse
Not really. The value it uses is from the Android OS its self which is inaccurate and constant.
In my case it is 4100 mAh.
On my original 4300 mAh battery it was off by 200 mAh, on the replacement 300. Assuming the battery was as speced. It could have even been over the speced value.
Depending on the battery temperature and the charge range Accubatter's estimate can vary by 200 even 300 mAh.
Set it so it will read 100% by entering the value Accubattery thinks it sees when the battery is fully charged. It makes it easier and less dissettling to track
In the course of the battery's life you'll probably end up reloading and losing the data but for short term monitoring it's very useful.
It's logging history is great for quickly spotting excessive battery usage or slow charging. With those considerations in mind it's a useful tool that doesn't consume very battery it's self.
After the Pro version is active I firewall* block it as it is constantly in internet contact otherwise... I don't need that. If you disable Playstore or Google play Services it will revert back to the free version unless firewall blocked I disable the former two most of the time so there's that.
That's my biggest complaint about it.
*Karma Firewall, a great freeware apk that uses almost no battery
Sir in my case it showed accurate capacity of my battery.
When charged my phone first my phone had 99% battery health.
But 4 weeks later it says something 89 percent.
I don't know about battery science. But can you tell me in short is it okay? . Or i should go to coutomer care?
Mi Nabil said:
Sir in my case it showed accurate capacity of my battery.
When charged my phone first my phone had 99% battery health.
But 4 weeks later it says something 89 percent.
I don't know about battery science. But can you tell me in short is it okay? . Or i should go to coutomer care?
Click to expand...
Click to collapse
Really I doubt they would accept Accubattery's data.
When your SOT drops significantly and it's not because of excessive battery usage by apk(s), then you know you have a problem.
Heavily used phones will get about 1-2 years of usable battery life. I'll probably replace mine again at the 1 year mark.
If you want it to last longer only charge to 80-90%
Don't discharge below 30%
Li's like frequently midrange charge/discharge cycles. Frequent midrange partial charges prolong their life a lot.
Never charge if below 40°F
Do not charge below 72°F, 85-95F is the optimum start charge temperature.
Do not allow battery temperature to exceed 100F when charging, cool as needed.
blackhawk said:
Really I doubt they would accept Accubattery's data.
When your SOT drops significantly and it's not because of excessive battery usage by apk(s), then you know you have a problem.
Heavily used phones will get about 1-2 years of usable battery life. I'll probably replace mine again at the 1 year mark.
If you want it to last longer only charge to 80-90%
Don't discharge below 30%
Li's like frequently midrange charge/discharge cycles. Frequent midrange partial charges prolong their life a lot.
Never charge if below 40°F
Do not charge below 72°F, 85-95F is the optimum start charge temperature.
Do not allow battery temperature to exceed 100F when charging, cool as needed.
Click to expand...
Click to collapse
One more question sir.
What is better for battery health charging 20 to 100% once or charging 20 to 80% twice in a day.
blackhawk said:
Really I doubt they would accept Accubattery's data.
When your SOT drops significantly and it's not because of excessive battery usage by apk(s), then you know you have a problem.
Heavily used phones will get about 1-2 years of usable battery life. I'll probably replace mine again at the 1 year mark.
If you want it to last longer only charge to 80-90%
Don't discharge below 30%
Li's like frequently midrange charge/discharge cycles. Frequent midrange partial charges prolong their life a lot.
Never charge if below 40°F
Do not charge below 72°F, 85-95F is the optimum start charge temperature.
Do not allow battery temperature to exceed 100F when charging, cool as needed.
Click to expand...
Click to collapse
Sir can you please answer my last question?
That i have qutioned you in previous reply

Question 85% VS 100% - and why?

I have always charged my phones to 100%, this 85% thing is very new to me.
I've never heard about it before until I saw it in my S22 ULTRA.
What are the benefits of charging only to 85%? Does it last as much as with 100%?
Does it really recommended to charge it up to 85%? Im not an heavy user, but also I'm not changing my phone once a year, I'm changing it one time in 3-4 years.
Also, I tried to never charge my phone at night, and trying to catch the battery not lower than 10-15 percent to charge.
So basically, it bothers me a little bit in the eye to see that the phone is only about 85%, because that way basically the battery will run out much faster(significantly, yesterday 10% went down in 45 minutes, which means I'll lose 45 minutes from battery usage for nothing).
So, my question is, is it really worth it? Is there a significant difference between the two options? I'd love your help, thank you all!
The 85% is to protect and prolong the battery life. I agree that you will loose 15% of battery time if not charging to 100%. I charge to 100% and when battery is 10 - 15 I charge to full. I guess on the long run it's better for the battery to only charge to 85%, but I change phones every year or 2, so I'm not to worried about prolonging the battery life
Set low limit at 30-40%
Top limit of 72-85% is better.
Li's love frequent midrange power cycling.
Start charge temperature is important to prevent Li plating. Battery should be at least at 72F, 82-90F is better. Cool if charging temperature goes above 99F. Never charge in direct sunlight.
Never attempt to charge at 40F or lower
Avoid having the screen on while changing.
When using, turn phone off if battery temperature reaches 100F or cool it.
Replacing the battery isn't a big deal unless you don't do it on a timely basis. When an Li has reached 80% of it's original capacity it's reached the end of it's useful service life and is degraded.
Degraded Li's are more likely to fail which can heavily damage the phone. Any swelling is a failure replace immediately.
High voltage , temperature and current drain stress the battery. Other than avoiding low temperature charging and going to either low/high extreme voltage ranges constantly I wouldn't worry about it too much.
I now replace my heavily used Note 10+ battery every year or so to avoid another failure, routine maintenance. Batteries are cheap and relatively easy to replace.
blackhawk said:
Set low limit at 30-40%
Top limit of 72-85% is better.
Li's love frequent midrange power cycling.
Start charge temperature is important to prevent Li plating. Battery should be at least at 72F, 82-90F is better. Cool if charging temperature goes above 99F. Never charge in direct sunlight.
Never attempt to charge at 40F or lower
Avoid having the screen on while changing.
When using, turn phone off if battery temperature reaches 100F or cool it.
Replacing the battery isn't a big deal unless you don't do it on a timely basis. When an Li has reached 80% of it's original capacity it's reached the end of it's useful service life and is degraded.
Degraded Li's are more likely to fail which can heavily damage the phone. Any swelling is a failure replace immediately.
High voltage , temperature and current drain stress the battery. Other than avoiding low temperature charging and going to either low/high extreme voltage ranges constantly I wouldn't worry about it too much.
I now replace my heavily used Note 10+ battery every year or so to avoid another failure, routine maintenance. Batteries are cheap and relatively easy to replace.
Click to expand...
Click to collapse
So, I understand that it recommended to charge up to 85%? :-D
I searched on google to buy a S22 ultra battery that will keep in home until I need it, but couldn't find one.
maor23 said:
I have always charged my phones to 100%, this 85% thing is very new to me.
I've never heard about it before until I saw it in my S22 ULTRA.
What are the benefits of charging only to 85%? Does it last as much as with 100%?
Does it really recommended to charge it up to 85%? Im not an heavy user, but also I'm not changing my phone once a year, I'm changing it one time in 3-4 years.
Also, I tried to never charge my phone at night, and trying to catch the battery not lower than 10-15 percent to charge.
So basically, it bothers me a little bit in the eye to see that the phone is only about 85%, because that way basically the battery will run out much faster(significantly, yesterday 10% went down in 45 minutes, which means I'll lose 45 minutes from battery usage for nothing).
So, my question is, is it really worth it? Is there a significant difference between the two options? I'd love your help, thank you all!
Click to expand...
Click to collapse
If you can last to bedtime on an 85% charge then fine use that setting if you intend to keep the device for 3 years or longer.
If (like me) you need 100% charge to get through the day, continue charging to 100% and dont worry.
I have been using mobile phones for 25 years and I charge overnight as I sleep. I have NEVER had a battery failure or problems.
Life is short, enjoy your new phone
P.S. If you are worried about stressing the battery by charging to 100%, I suggest you also disable Fast-Charging as that is WORSE for a battery cell than 100% vs 85% iMHO.
I used to charge my Note 10+ to 100%, every day plug it while in my car or plug it to my laptop now and then. After 2 years of use battery health was 89%.
On my Lenovo laptop I stop charging at 60% as suggested by Lenovo vantage. Bull****. Battery lasts a lot less after one year. Almost the half.
Enjoy your gadgets and mobiles. Anyway after 2 years most of us get a new one.
blackhawk said:
Set low limit at 30-40%
Top limit of 72-85% is better.
Li's love frequent midrange power cycling.
Start charge temperature is important to prevent Li plating. Battery should be at least at 72F, 82-90F is better. Cool if charging temperature goes above 99F. Never charge in direct sunlight.
Never attempt to charge at 40F or lower
Avoid having the screen on while changing.
When using, turn phone off if battery temperature reaches 100F or cool it.
Replacing the battery isn't a big deal unless you don't do it on a timely basis. When an Li has reached 80% of it's original capacity it's reached the end of it's useful service life and is degraded.
Degraded Li's are more likely to fail which can heavily damage the phone. Any swelling is a failure replace immediately.
High voltage , temperature and current drain stress the battery. Other than avoiding low temperature charging and going to either low/high extreme voltage ranges constantly I wouldn't worry about it too much.
I now replace my heavily used Note 10+ battery every year or so to avoid another failure, routine maintenance. Batteries are cheap and relatively easy to replace.
Click to expand...
Click to collapse
how does one set low limit?
i have a smart plug i use for my charger, only on long enough to charge phone from 20% to 85% (battery setting limit enabled).
i usually charge at 30% to 85%.
Slade8525 said:
how does one set low limit?
i have a smart plug i use for my charger, only on long enough to charge phone from 20% to 85% (battery setting limit enabled).
i usually charge at 30% to 85%.
Click to expand...
Click to collapse
I just do it by eye. It's not rocket science.
Accubattery lets you set an alarm if you want.
maor23 said:
So, I understand that it recommended to charge up to 85%? :-D
I searched on google to buy a S22 ultra battery that will keep in home until I need it, but couldn't find one.
Click to expand...
Click to collapse
Keeping a spare isn't a good plan as Li's start to degrade as soon as assembled. So after a year or more of sitting there it will have lost some of its initial capacity.
They should became easier in the future.
Any solution to modify the protect level?
"protect battery level 90%, 95% mod instead of 85%"
85% seem to be very short time of using
For anybody wanting to change the limit from 85% to lets say 90%, you can use the App called Galaxy Max Hz, you can find it on this forum : https://forum.xda-developers.com/t/...ods-qs-tiles-tasker-support-and-more.4404929/
One of the options is to change the battery charge limit, on the lock screen it will still say : "Charging stopped at 85%" even though the battery is at 90% as set in Galaxy Max Hz
coolpixs4 said:
Any solution to modify the protect level?
"protect battery level 90%, 95% mod instead of 85%"
85% seem to be very short time of using
Click to expand...
Click to collapse
85% is actually rather on the high side. Either correct the excessive battery drain or replace the battery. When an Li reaches 80% of its original capacity it's reached the end of its usable service life. It's degraded at that point. Degraded Li's are much more likely to fail. Any battery swelling is a failure.
My device does not have 'protect battery' toogle on quick settings
SS22+ OneUI4.1
coolpixs4 said:
Any solution to modify the protect level?
"protect battery level 90%, 95% mod instead of 85%"
85% seem to be very short time of using
Click to expand...
Click to collapse
bixby probably
Actually, the protection level should be 80% or less to maximize the battery’s useful life.
malikin said:
bixby probably
Click to expand...
Click to collapse
coolpixs4 said:
Any solution to modify the protect level?
"protect battery level 90%, 95% mod instead of 85%"
85% seem to be very short time of using
Click to expand...
Click to collapse
verszipo said:
For anybody wanting to change the limit from 85% to lets say 90%, you can use the App called Galaxy Max Hz, you can find it on this forum : https://forum.xda-developers.com/t/...ods-qs-tiles-tasker-support-and-more.4404929/
One of the options is to change the battery charge limit, on the lock screen it will still say : "Charging stopped at 85%" even though the battery is at 90% as set in Galaxy Max Hz
Click to expand...
Click to collapse
freco said:
I used to charge my Note 10+ to 100%, every day plug it while in my car or plug it to my laptop now and then. After 2 years of use battery health was 89%.
On my Lenovo laptop I stop charging at 60% as suggested by Lenovo vantage. Bull****. Battery lasts a lot less after one year. Almost the half.
Enjoy your gadgets and mobiles. Anyway after 2 years most of us get a new one.
Click to expand...
Click to collapse
I use the 60% protection on my Lenovo as they suggested and gess what, after 8 years my battery still works fine, and lasts for 2h/3h. I used my laptop every workday on heavy use, and it's the most cheap line, it cost me 300€ in 2015 (Lenovo G50-30 Celeron N2840). It's all day pluged, but when i need to use on battery it's fine!
So i realy think this battery protection works, and my S22 Ultra it's for last at least 5 years, and the 85% it's enough to run my workday.
burnin said:
I use the 60% protection on my Lenovo as they suggested and gess what, after 8 years my battery still works fine, and lasts for 2h/3h. I used my laptop every workday on heavy use, and it's the most cheap line, it cost me 300€ in 2015 (Lenovo G50-30 Celeron N2840). It's all day pluged, but when i need to use on battery it's fine!
So i realy think this battery protection works, and my S22 Ultra it's for last at least 5 years, and the 85% it's enough to run my workday.
Click to expand...
Click to collapse
Maybe. Depends on usage. On my N10+ which is heavily used with frequent charge cycling from 40-60% to 72 to 85% most times I get about 2 years out of a battery. Higher battery temperature shortens the lifespan as well. Fast charging is more stressful as is using the device right after a fast charge. High current drain while in use is also stressful; optimize the device to increase SOT and battery lifespan.
Frequent partial charge power cycling can extent the typical 200 full charge cycles to 800 or more. A partial charge is not a full charge cycle.
Start charge temperature matters.
It's an electrochemical reaction, heat is required for it to charge properly!
-//-
Never attempt to charge if near freezing
Fast charging will not engage if battery temperature is below about 55F to protect the battery.
Charging below 72F or above 103F can cause Li plating which will permanently degrade the cell.
Optimum start temperature is 82-90F, cutoff is 100-102F max. Cool if needed.
Regardless of service time replace the Li when it reaches 80% of its original capacity. At 80% it's reached the end of its service life and is considered degraded. Degraded Li's are more likely to fail
Any swelling is a failure and it can destroy the device. Battery replacement isn't hard or expensive. Just part of routine maintenance...
maor23 said:
I have always charged my phones to 100%, this 85% thing is very new to me.
I've never heard about it before until I saw it in my S22 ULTRA.
What are the benefits of charging only to 85%? Does it last as much as with 100%?
Does it really recommended to charge it up to 85%? Im not an heavy user, but also I'm not changing my phone once a year, I'm changing it one time in 3-4 years.
Also, I tried to never charge my phone at night, and trying to catch the battery not lower than 10-15 percent to charge.
So basically, it bothers me a little bit in the eye to see that the phone is only about 85%, because that way basically the battery will run out much faster(significantly, yesterday 10% went down in 45 minutes, which means I'll lose 45 minutes from battery usage for nothing).
So, my question is, is it really worth it? Is there a significant difference between the two options? I'd love your help, thank you all!
Click to expand...
Click to collapse
Here is a good article why it's recommended to not load the batt to 100%
How to maximize battery life: Charging habits and other tips
If you've ever wondered what the best way to charge your battery is, here are some scientifically proven tips for maximizing battery life.
www.androidauthority.com
Personally i just keep the load between 65% and around 20-30%. Only if i know that i will leave the house longer than 4 hours I do a 85% load or 100% if i want to film and take photos. But this rarely happens.

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