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Hi,
I bought a new battery for my Desire (LeeDroid 2.4.1), it should be an original HTC battery and it looks like this. And it seems to have a good capacity.
But i has a VERY strange behavior:
I put it into my Desire and put it on the original charger while it was off. I wait until the green led came. then power on, charger off.
the desire said: 94% not 100%. So I put it on the charger, again. % raises, with 44mA (Battery Monitor Widget and other battery monitor apps showing this).
after some time 100% but still 44mA charging current!?
putting charger off: still 44mA charging current!?!?
So, I used my Desire. from 100% to 0%: the whole time: 44mA charging! no discharge current, charge!
and the whole time: voltage is stable at 3923mV no decrease
And another strange thing:
using a video player, % and mAh in Battery Monitor decreases (this is ok), and after player and screen off: the % and mAh level increases!
so my actual battery log without a charger:
15%
15%
15%
15%
14%
14%
14%
13%
13%
13%
12%
12%
12%
13%
13%
13%
14%
14%
13%
13%
12%
12%
a) any idea what to make with this battery
b) any idea what this is about?
BTW: Can anybody tell me: What part is responsable for the different values? Does the battery (with its charging logic?) tell them to the desire? Or did the Desire estimate them from voltage or so?
battery voltage
mAh level
charging/uncharging current
temperature
I guess you're not the only one who has a weird battery ;-) .
Sometimes my battery is charging and charging and charging until 99% but not until 100 and the LED does not get green, it stays red. Then, sometimes it gets green and 100%. But it does not stop at 94% as you said.
And often the battery discharges and suddenly it gets 1 to 5 % more. Sometimes at the status of 60% or as you have it between 10 and 15 or even between 30 and 35.
I really do not understand this battery behavior but I have to say that I also bought a second battery. The original battery did not behave like that.
Oh and I also have a custom rom, but I also had this behavior with the original rom.
Sorry that I could not help you but if someone knows something about it, that would be very nice.
Jonas
stm999999999 said:
I bought a new battery for my Desire (LeeDroid 2.4.1), it should be an original HTC battery and it looks like this. And it seems to have a good capacity.
Click to expand...
Click to collapse
Did you happen to erase the battery calibration file before booting with the new battery? You can do it from the recovery menu (clockwork) or using an app (com.nema.batterycalibration)
If you don't do this, the OS assumes you did not change batteries and will be confused when the battery does not reach certain thresholds as expected (100% going up, 15% going down, 5% going down, 0% going down).
Also voltage does not equal total charge. Voltage is influenced by temperature, charging stage and speed or discharging stage and speed, also time between the charging and discharging events.
Just fix the calibration file, after you charge the battery to 100% (power off, replug charger to be sure to tap it off) and do a full discharge and recharge cycle.
sorry, forgott to mention:
after my first shock I delete it in recovery menu. No change.
And I cannot believe this is a battery stats issue: I have two old batteries, one original and one third party. I can swap them and every time I got a reasonable current value while charging and during using it. Only the new one has this error.
BombaUcigasa said:
Also voltage does not equal total charge. Voltage is influenced by temperature, charging stage and speed or discharging stage and speed, also time between the charging and discharging events.
Click to expand...
Click to collapse
But it is nearly impossible that the voltage is absolut stable over a whole using period, or?
Even now (I used my older HTC battery this day) with the new one I have absolut stable:
44mAh, 3923mV
IMHO the battery tells wrong values to the desire. therefore my question: Does anyone knows which values are told by the battery logic?
stm999999999 said:
But it is nearly impossible that the voltage is absolut stable over a whole using period, or?
Click to expand...
Click to collapse
It is very possible. The cheap 3rd party batteries ICs do not report voltage and temperature correctly, just a static value to be accepted by the device.
This is why charge estimations won't work correctly. I have such a battery, the only reliable read is when it goes under 15%, and 5%. Those are real warnings, at least the battery won't flake out without notice.
I wanted to say: a stable and correct value should be impossibe - of course a faked value can be stable. But this battery should be an original HTC and no 3rd-party.
But it seemed to be the battery: I tried it with another desire (stock rom) and the same error. So I have to talk to the salesman.
stm999999999 said:
But this battery should be an original HTC and no 3rd-party.
Click to expand...
Click to collapse
Well there is a very small chance the battery was genuine but broken, otherwise I'm sorry, but the Chinese manufacturers need to be taught that smartphone batteries should be treated more like laptop batteries, use a better controller and you get better sales.
I believe genuine official batteries can only be obtained from HTC shops and official resellers.
got a replacement - same behaviour
stm999999999 said:
got a replacement - same behaviour
Click to expand...
Click to collapse
Have you solved the problem since?
I have a HTC Desire, and replaced the battery recently with a supposidly genuine one and am getting exactly the same behaviour - 44mA and stuck on 3923mV. The phone also never reaches 100% when charging (while powered on), reaches 99% and says there with red led forever. It does show green when charging powered off though.
The battery does seem to last more than the older one so it's not a major issue - I'm just concerned at the not reaching 100% part (damaging the battery?) and the accuracy of the battery meter in android (% remaining).
wspawn said:
Have you solved the problem since?
Click to expand...
Click to collapse
no, got an envelope for reshipment.
I think about bying a battery directly from Amazon. I hope they have original parts.
Yea, thanks for the reply. I put my original battery in and it works fine so definitely a fake / broken battery. Bit pissed off as the place I bought it from swore it was genuine.
stm999999999 said:
Hi,
I bought a new battery for my Desire (LeeDroid 2.4.1), it should be an original HTC battery and it looks like this. And it seems to have a good capacity.
But i has a VERY strange behavior:
I put it into my Desire and put it on the original charger while it was off. I wait until the green led came. then power on, charger off.
the desire said: 94% not 100%. So I put it on the charger, again. % raises, with 44mA (Battery Monitor Widget and other battery monitor apps showing this).
after some time 100% but still 44mA charging current!?
putting charger off: still 44mA charging current!?!?
So, I used my Desire. from 100% to 0%: the whole time: 44mA charging! no discharge current, charge!
and the whole time: voltage is stable at 3923mV no decrease
And another strange thing:
using a video player, % and mAh in Battery Monitor decreases (this is ok), and after player and screen off: the % and mAh level increases!
so my actual battery log without a charger:
15%
15%
15%
15%
14%
14%
14%
13%
13%
13%
12%
12%
12%
13%
13%
13%
14%
14%
13%
13%
12%
12%
a) any idea what to make with this battery
b) any idea what this is about?
BTW: Can anybody tell me: What part is responsable for the different values? Does the battery (with its charging logic?) tell them to the desire? Or did the Desire estimate them from voltage or so?
battery voltage
mAh level
charging/uncharging current
temperature
Click to expand...
Click to collapse
Got a similar defective battery, but the guy who sold it to me did not agree to replace it..... I think it is a dangerous battery not to be used
http://78michel.unblog.fr/htc-desire-battery-shutdown-analysis/
Just ordered a dock for my S3 and was planning to use it at work, so the phone would be plugged into a charger 8hrs \ weekday. Will this kill my battery?
ubernewf said:
Just ordered a dock for my S3 and was planning to use it at work, so the phone would be plugged into a charger 8hrs \ weekday. Will this kill my battery?
Click to expand...
Click to collapse
No. That doesn't affect LION batteries. have done it for years with tablets and other LION batteries.
ubernewf said:
Just ordered a dock for my S3 and was planning to use it at work, so the phone would be plugged into a charger 8hrs \ weekday. Will this kill my battery?
Click to expand...
Click to collapse
No, lithium ion batteries have no battery memory like nickel cadmium ones. Charge whenever and as long as you want!
I let my phones, and my other Li-ion battery appliances charge everyday all night long. I can't imagine it being much different then charging while you're at work. Worst case scenario is your battery starts to not hold its charge a year from now, and then you could just get a new battery before the 1 year warranty is over.
I thought that while there is no memory effect with Li-ion batteries, they do die quickest when at maximum and minimum charge, and last longest when at 40-50% charge.
Per Wikipedia:
A Standard (Cobalt) Li-ion cell that is full most of the time at 25 °C (77 °F) irreversibly loses approximately 20% capacity per year. Poor ventilation may increase temperatures, further shortening battery life. Loss rates vary by temperature: 6% loss at 0 °C (32 °F), 20% at 25 °C (77 °F), and 35% at 40 °C (104 °F). When stored at 40%–60% charge level, the capacity loss is reduced to 2%, 4%, and 15%, respectively.[50] In contrast, the calendar life of LiFePO4 cells is not affected by being kept at a high state of charge.[51]
Click to expand...
Click to collapse
Avoid deep discharge and instead charge more often between uses, the smaller the depth of discharge, the longer the battery will last.[106][unreliable source?]
Avoid storing the battery in full discharged state. As the battery will self-discharge over time, its voltage will gradually lower, and when it is depleted below the low-voltage threshold (2.4 to 2.9 V/cell, depending on chemistry) it cannot be charged anymore because the protection circuit (a type of electronic fuse) disables it.[106][unreliable source?]
Lithium-ion batteries should be kept cool; they may be stored in a refrigerator.[106][unreliable source?][107]
The rate of degradation of Lithium-ion batteries is strongly temperature-dependent; they degrade much faster if stored or used at higher temperatures.[106][unreliable source?][108]
The rate of degradation of Lithium-ion batteries is also related to battery charge level; they degrade much faster when at 100% charge, than at lower charges. Since batteries die if deep discharged (depleted) and since a battery has some self-discharge it is frequently recommended to store batteries at 40% charge level.[109]
Click to expand...
Click to collapse
I'm not sure exactly which kind of Li-ion battery they are using as it seem some types are more immune to this effect than others.
But yeah, while it's not going to instantly kill your battery, it will cause it to lose capacity over time. This is the same reason why you shouldn't leave your laptop battery plugged in all the time.
I appreciate what you're doing there but I think it's hard to quote something as fact when it says "unreliable source" "unreliable source" "unreliable source" "unreliable source"...
Ha yeah I saw that but whatever. Wikipedia was just the first place I checked, I'm almost positive I've seen the same basic information elsewhere. And anecdotally I know I've laptop batteries stop holding charge after just a year or two when left plugged in 24/7.
This is also the reason that cell phones don't keep the battery charged at 100% when it's left plugged in. It goes to 100%, lets the battery die down to 90%ish, then charges back up to 100%, etc. It's trying to avoid keep the battery at 100%.
hello,
I started charging my tab, it got charged till 99% and then i kept on charging it but it didnt went above 99% so i thought may be its because i am using the cell. So i switched it off and kept on charging , The battry icon was charging towards the end part (like the last 10% is getting charged) but in brownish yellow collor (sort of dark orange color) i kept it for charging in this way for like an hour.. Still when i turned on the tab, its 99%. Why so??
I havent rooted it yet! its total stock..
Bought it just 5 days ago..
About half the time, my tab will only go to 99%. Since it's only1% I've never given much thought to it, but I do experience the same problem from time to time.
Tel864 said:
About half the time, my tab will only go to 99%. Since it's only1% I've never given much thought to it, but I do experience the same problem from time to time.
Click to expand...
Click to collapse
after reaching to 99%. How long does your tab works??? Are you using p3100 too??
mhrsolanki2020 said:
after reaching to 99%. How long does your tab works??? Are you using p3100 too??
Click to expand...
Click to collapse
I'm using a p3113. I've never noticed much difference in how long it lasts. Most days, my tablet will last all day whether it charges to 99% or 100%. You really shouldn't see any difference to speak of between a 100% charge and a 99% charge. I personally think it's an overcharge feature to keep it from overcharging. I've actually seen it jump from 100% to 99% one time. If that's the case, then it's a good thing. You could try to bump charge it like I've done to cellphones that won't fully charge. I really wouldn't recommend it since 1% is practically nothing.
Charge it up (powered on) until it's finished.
Unplug it, and turn it off
Plug it back in to charge (still powered off) again, until it says it's finished.It will continue to charge now.
Now unplug it and turn it back on.
Plug the charger back in (powered on) and charge until it says it's finished.
Keep doing this until when you have it powered on, it should say 100%.
mhrsolanki2020 said:
after reaching to 99%. How long does your tab works??? Are you using p3100 too??
Click to expand...
Click to collapse
The battery charging end is defined with two parmeters: the battery voltage reach a voltage close to 4.2 V and the battery charging current gets under 200mA ( a value I have estimated on my 5110 model) .
If for some reasons the residual current do not get under this limit value ( # 200mA) while the maximum battery voltage is reached , the state of charge stay screened at 99% !!!!!
The 4.2V battery voltage is a safety limit that a Li-Ion battery should not exceed. Most often the battery voltage is stabilized close to this value at the last stage of the charging cycle and the internal charging progam decide that the charging cycle is finished when the battery current gets under a predifined value.
I have given some examples of charging cycles of different smartphones in my blog : http://78michel.unblog.fr (sorry most examples are in french).
Tel864 said:
I'm using a p3113. I've never noticed much difference in how long it lasts. Most days, my tablet will last all day whether it charges to 99% or 100%. You really shouldn't see any difference to speak of between a 100% charge and a 99% charge. I personally think it's an overcharge feature to keep it from overcharging. I've actually seen it jump from 100% to 99% one time. If that's the case, then it's a good thing. You could try to bump charge it like I've done to cellphones that won't fully charge. I really wouldn't recommend it since 1% is practically nothing.
Click to expand...
Click to collapse
7_michel said:
The battery charging end is defined with two parmeters: the battery voltage reach a voltage close to 4.2 V and the battery charging current gets under 200mA ( a value I have estimated on my 5110 model) .
If for some reasons the residual current do not get under this limit value ( # 200mA) while the maximum battery voltage is reached , the state of charge stay screened at 99% !!!!!
The 4.2V battery voltage is a safety limit that a Li-Ion battery should not exceed. Most often the battery voltage is stabilized close to this value at the last stage of the charging cycle and the internal charging progam decide that the charging cycle is finished when the battery current gets under a predifined value.
I have given some examples of charging cycles of different smartphones in my blog : http://78michel.unblog.fr (sorry most examples are in french).
Click to expand...
Click to collapse
So I should stop charging when its 99%?
How many hours does ur tab lasts after charging 99% ?? Cuz mine doesnt lasts even 4 hours .. never charged 99% (just bought it somedays ago) did it yest , its working well now .
Screen takes too much battery ,.. ny way arround it to have better batery life? i saw CM10.1 but it has probs with gsm device so I m not using it ..
mhrsolanki2020 said:
So I should stop charging when its 99%?
How many hours does ur tab lasts after charging 99% ?? Cuz mine doesnt lasts even 4 hours .. never charged 99% (just bought it somedays ago) did it yest , its working well now .
Screen takes too much battery ,.. ny way arround it to have better batery life? i saw CM10.1 but it has probs with gsm device so I m not using it ..
Click to expand...
Click to collapse
hello friend me too got gtab2 few days back.couple of days back i left charger connected full night and next day i saw on screen "battery fully charged unplug charger"my tab last full day when i return home its around 30%.abt ur battery life i doubt may be some apps are consuming or may be continue wifi use?if this is not issue then u must report this problem to cc coz 4 hrs backup is very less
mhrsolanki2020 said:
So I should stop charging when its 99%?
Click to expand...
Click to collapse
I think it is better for the battery life to stop charging if the state of charge level stay on 99%, because the charging current is maintained continuously in the battery and I think this is not so good for the battery life.
You can check the battery current in the battery with diffrents battery monitoring systems. I use Battery Monitor Widget. This is very convenient app. to analyse the charging cycle and the draining of the battery.
Analysis of my 5110 here: http://78michel.unblog.fr/samsung-galaxy-tab-2-10-1-tests/
The screen of these tablets is the most current draining component. At max screen brigthness the battery life is a less than 6 hours on my 5110. The brightness should be setted as low as possible to improve battery life, other componenet such as WiFi... GPS have very low impact on the battery life.....
What's the consensus on when to charge and how long?
Is it safe to charge the S7 battery overnight, even if only around 50%? Or is it better to wait until your almost dead?
One of the I.T. guys at work was saying you should wait until you're below 20%, then always charge to 100%.
Just charge it whenever you want, this isn't the 90's or 2010. You'll probably replace your phone before you start to see it majorly affecting your battery.
You'll get a very slight improvement in overall battery life if you keep the charge between 25% and 75%. But we're talking very small. But yes, it's perfectly safe to charge your phone over night. The battery / phone / charger electronics won't overcharge the battery.
What you do want to avoid is draining the battery down to zero, or close to it. If at all possible, don't let the charge drop below 20 - 25% on a regular basis.
meyerweb said:
You'll get a very slight improvement in overall battery life if you keep the charge between 25% and 75%. But we're talking very small. But yes, it's perfectly safe to charge your phone over night. The battery / phone / charger electronics won't overcharge the battery.
What you do want to avoid is draining the battery down to zero, or close to it. If at all possible, don't let the charge drop below 20 - 25% on a regular basis.
Click to expand...
Click to collapse
Thanks for the info. I thought it was beneficial to charge all the way to full?
Sent from my SM-G930V using XDA-Developers mobile app
Lithium Ion batteries are different than older technologies, such as NiCad and NiMH. These batteries suffered from the "memory effect" (although not as badly as most people thought), so it was good to charge those fully. If you always charged them to, say 80%, they would eventually only take an 80% charge. Li batteries don't suffer from a memory effect, so you don't need to worry about that.
The other thing is that Li batteries hate three things: excessive heat, being fully drained, and being overcharged. Tesla stops charging when the battery pack reaches 75% of full charge, and displays that as a full charge. Similarly, they consider a 25% charge as "empty." Then again, a Tesla battery pack costs something like 10,000 bucks, so it's important to as much as possible to maximize the life of the pack.
I apologize in advance if it's was already asked
So i'm wondering how it works. Does it use warp charge till it reach 100% or it goes normal like at 50 or 70%?
I noticed it's slow 90 to 100 whereas i see warp charge logo
I'm on havoc so idk if it's the same, but havoc shows the output, from what I can see its between 5-6amps until 50% and slowly tapers down from there to 1 amp between 90-100%
*Warp
Sent from my POCOPHONE F1 using Tapatalk
CodeBreaker13 said:
I apologize in advance if it's was already asked
So i'm wondering how it works. Does it use warp charge till it reach 100% or it goes normal like at 50 or 70%?
I noticed it's slow 90 to 100 whereas i see warp charge logo
Click to expand...
Click to collapse
Never charge to 100%, it shortens the battery lifespan a lot. It's best to use it on 20-80 charge range.
After 80% the charging speed slows down like any other phone.
Sent from my POCOPHONE F1 using Tapatalk
The about 20/80 has also worked out well for me on all my devices...
Hank87 said:
Never charge to 100%, it shortens the battery lifespan a lot. It's best to use it on 20-80 charge range.
After 80% the charging speed slows down like any other phone.
Sent from my POCOPHONE F1 using Tapatalk
Click to expand...
Click to collapse
This is a fallacy. I charge my phone to 100% everytime and after a years time my battery still has 93-96% capacity. The damage is done if you let it discharge below 10 or 15%. Lithium ion batteries looked to be charged more frequently and when the battery is above 75%. The higher the battery percentage the more charge cycles it will have.
Thanks for the lifespan tip. Didn't know about it
Eric214 said:
This is a fallacy. I charge my phone to 100% everytime and after a years time my battery still has 93-96% capacity. The damage is done if you let it discharge below 10 or 15%. Lithium ion batteries looked to be charged more frequently and when the battery is above 75%. The higher the battery percentage the more charge cycles it will have.
Click to expand...
Click to collapse
I didn't understand the last part of your post, if you charge till 80% you'll use very little charge cycle. The most of the battery wear is done on the last 20% charging. Even if you store a li-ion battery at 100% it get damaged very quickly.
They like to be charged often and stay on 40-50% average charge level. If you do that the battery is going to last 3+ years.
If you charge overnight to 100% and top up every time you'll need to replace the battery in less than 1 year.
Sent from my POCOPHONE F1 using Tapatalk
Hank87 said:
I didn't understand the last part of your post, if you charge till 80% you'll use very little charge cycle. The most of the battery wear is done on the last 20% charging. Even if you store a li-ion battery at 100% it get damaged very quickly.
They like to be charged often and stay on 40-50% average charge level. If you do that the battery is going to last 3+ years.
If you charge overnight to 100% and top up every time you'll need to replace the battery in less than 1 year.
Sent from my POCOPHONE F1 using Tapatalk
Click to expand...
Click to collapse
This is not the case. Charging the phone more then 20 or 25% or more results in more charge cycles. Look up BatteryUniversity.com and it will explain it to you. The damage above 80% is done if the charging per doesn't reduce and you charge to quickly from 80-100%. This is why the battery reduces charging speed after 80% down to a trickle charger from 95% to 100%. This is built into the charging tech so there is no battery damage charging your phone to 100%.
I charge my phone to 100% everyday and something twice in a day and never have battery issues or reduced battery capacity. My phone lasts as well after 1 year as from the day it's purchased.
Eric214 said:
This is not the case. Charging the phone more then 20 or 25% or more results in more charge cycles. Look up BatteryUniversity.com and it will explain it to you. The damage above 80% is done if the charging per doesn't reduce and you charge to quickly from 80-100%. This is why the battery reduces charging speed after 80% down to a trickle charger from 95% to 100%. This is built into the charging tech so there is no battery damage charging your phone to 100%.
I charge my phone to 100% everyday and something twice in a day and never have battery issues or reduced battery capacity. My phone lasts as well after 1 year as from the day it's purchased.
Click to expand...
Click to collapse
https://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
Read carefully, it says exactly what I'm telling you.
I'll attach a screenshot of the website that you suggested, it's shows what I'm saying that if you charge to 80% instead of 100% you get three times more battery cycles of lifespan (850-1500 vs 350-500).
Also the second screenshot shows that if the battery stays at 100% it degrades much faster (only 80% capacity after one year vs 96% capacity if stored at 40%).
https://photos.app.goo.gl/uPH5UXBTbHiEgjRQ6
https://photos.app.goo.gl/FLsT3gTEHuq6KwU77
Sent from my POCOPHONE F1 using Tapatalk
And if you charge routinely from 75% or higher, you can achieve up to 1200 cycles for lithium ion batteries. I'll do my way as I don't lose battery capacity after a years time. This is info from battery University. Been doing this for years (since the note 3). Again I'll say, it's not charging to 100% it's if your charge to quickly from 80% to 100% it's what's bad for the battery.
---------- Post added at 08:23 PM ---------- Previous post was at 08:02 PM ----------
If you read what you posted it's the temperature During the charging that reduces the charge cycles. There is no heat in a OnePlus phone with Warp or Dash charging. Depth of discharge also increases cycles if you charge when the battery had more charge. For example... Charging at 25% or less gives 250-300 charge cycles, 25-50% gives 350-500 cycles, 50-75% 600-900 cycles and above 75% up to 1200 cycles. I'll continue to follow that by battery University and continue to have a battery that doesn't lose capacity
Eric214 said:
And if you charge routinely from 75% or higher, you can achieve up to 1200 cycles for lithium ion batteries. I'll do my way as I don't lose battery capacity after a years time. This is info from battery University. Been doing this for years (since the note 3). Again I'll say, it's not charging to 100% it's if your charge to quickly from 80% to 100% it's what's bad for the battery.
---------- Post added at 08:23 PM ---------- Previous post was at 08:02 PM ----------
If you read what you posted it's the temperature During the charging that reduces the charge cycles. There is no heat in a OnePlus phone with Warp or Dash charging. Depth of discharge also increases cycles if you charge when the battery had more charge. For example... Charging at 25% or less gives 250-300 charge cycles, 25-50% gives 350-500 cycles, 50-75% 600-900 cycles and above 75% up to 1200 cycles. I'll continue to follow that by battery University and continue to have a battery that doesn't lose capacity
Click to expand...
Click to collapse
I'm not going to convince you but I don't like the pread of disinformation.
If you read the graph in the picture it show that what damages the battery is both from high temperature and high charge level. Just look at 25 degree row:
40% charge - >96% capacity after 1 year
100% charge - >80% capacity after 1 year
Things are even worse at 40 degree: 85% capacity vs 65% so 20% extra battery capacity lost.
Remember that when the battery capacity is at 80% means the battery is gone because it cannot cope with the ampere under load and the phone will shut down. This after 1 year without taking consideration of the extra damage while charging to 100%.
Now I'll copy and paste that part from the website:
Most Li-ions charge to 4.20V/cell, and every reduction in peak charge voltage of 0.10V/cell is said to double the cycle life. For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles. If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles; 4.0V/cell should deliver 1,200–2,000 and 3.90V/cell should provide 2,400–4,000 cycles.
4.20v is 100% charge
4v is 70-75% charge
Be careful that's tge voltage of the cell, not the charging voltage.
I agree with you that slow charging makes less damage but still charging from 75% to 100% makes hugely more damage to the battery than charging from 20% to 80%.
Sent from my POCOPHONE F1 using Tapatalk
Hank87 said:
I'm not going to convince you but I don't like the pread of disinformation.
If you read the graph in the picture it show that what damages the battery is both from high temperature and high charge level. Just look at 25 degree row:
40% charge - >96% capacity after 1 year
100% charge - >80% capacity after 1 year
Things are even worse at 40 degree: 85% capacity vs 65% so 20% extra battery capacity lost.
Remember that when the battery capacity is at 80% means the battery is gone because it cannot cope with the ampere under load and the phone will shut down. This after 1 year without taking consideration of the extra damage while charging to 100%.
Now I'll copy and paste that part from the website:
Most Li-ions charge to 4.20V/cell, and every reduction in peak charge voltage of 0.10V/cell is said to double the cycle life. For example, a lithium-ion cell charged to 4.20V/cell typically delivers 300–500 cycles. If charged to only 4.10V/cell, the life can be prolonged to 600–1,000 cycles; 4.0V/cell should deliver 1,200–2,000 and 3.90V/cell should provide 2,400–4,000 cycles.
4.20v is 100% charge
4v is 70-75% charge
Be careful that's tge voltage of the cell, not the charging voltage.
I agree with you that slow charging makes less damage but still charging from 75% to 100% makes hugely more damage to the battery than charging from 20% to 80%.
Sent from my POCOPHONE F1 using Tapatalk
Click to expand...
Click to collapse
Yeah I can say the same about disinformation which is what I said to you to begin with. My op6 which I bought and had since launch still gives me 9-11 hours is screen on time today like it did on day one. That phone like all the rest of my phone is charged to 100% every day, normally from about 70% or higher remaining battery when put on charge. Using a few different apps my battery capacity still shoes 95% capacity.
Again, charging to 100% and damaging your battery is a fallacy. Charging to 80% is fine but your depth of discharge is greater putting more stress on a lithium ion battery.
Eric214 said:
Yeah I can say the same about disinformation which is what I said to you to begin with. My op6 which I bought and had since launch still gives me 9-11 hours is screen on time today like it did on day one. That phone like all the rest of my phone is charged to 100% every day, normally from about 70% or higher remaining battery when put on charge. Using a few different apps my battery capacity still shoes 95% capacity.
Again, charging to 100% and damaging your battery is a fallacy. Charging to 80% is fine but your depth of discharge is greater putting more stress on a lithium ion battery.
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That's is from lab test made from scientist, so I trust it.
Also no one tells you that you need to wait 20% to charge, you can do 40 to 60 or 30 to 50 but i can assure you that I've got a phone a xiaomi mi 5s 3 years old same battery charging 20% to 80% and is still usable, I'm using it as a second phone.
My previous phone was a galaxy note, I was charging it overnight and charging it to 100% often through the day, i replaced the battery three times in two years.
Thats my experience.
Sent from my POCOPHONE F1 using Tapatalk
So guys what you recommend for charging pattern for best battery health ? I'm rly lost from what u said...
Me I charge my phone every night with very small charger I think it's 1amper maybe lower.
I never let it under 25-20 % and always charge it full with zero heat and takes long time to charge because of the charger.
If I wake up to go toilet and night and it's charged I removed it and that's it..
The Power of Oneplus 7 Pro be with you
johnnyman25 said:
So guys what you recommend for charging pattern for best battery health ? I'm rly lost from what u said...
Me I charge my phone every night with very small charger I think it's 1amper maybe lower.
I never let it under 25-20 % and always charge it full with zero heat and takes long time to charge because of the charger.
If I wake up to go toilet and night and it's charged I removed it and that's it..
The Power of Oneplus 7 Pro be with you
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Click to collapse
The best charging pattern is to always keep the battery near 50% and do frequent charges through the day.
Don't charge overnight, leave the battery at around 50% when you go to sleep.
At the morning, when you wake up plug in the warp charger so you can charge to 80% before going to work.
Charge over 80% only in special circumstances when you need long battery life.
Try to never go below 20%.
Sent from my POCOPHONE F1 using Tapatalk
johnnyman25 said:
So guys what you recommend for charging pattern for best battery health ? I'm rly lost from what u said...
Me I charge my phone every night with very small charger I think it's 1amper maybe lower.
I never let it under 25-20 % and always charge it full with zero heat and takes long time to charge because of the charger.
If I wake up to go toilet and night and it's charged I removed it and that's it..
The Power of Oneplus 7 Pro be with you
Click to expand...
Click to collapse
I recommend you to plug your phone 1h before sleep and charge it fully or do it in the morning. You may increase your battery life with all that slower charging, up to 80% etc but really? Is it worth to resign from that cool Warp charging feature just for extending your battery lifespan and you won't even know how much it will extend? And you can even exchange the battery at authorised center for about 20 bucks.
I thought the myth about leaving the phone charging overnight breaks stuff was explained away already. There's stuff that runs in the background that improves the usability of the phone and decreases battery drain.
Read this monster post for full info. Not so much looking after the battery but system optimization. Warning. It's a big read. I've been leaving my phone charging overnight for years. I still have a OP5 that's being used daily and still gets fairly impressive SOT. Other thing is, "we" tend to change our phones quite often. SO I just don't worry about it too much and use the phone the way I want to use it.
https://forums.oneplus.com/threads/charging-battery-performance-caches-and-battery-calibration-myths-busted.993896/