Related
Hello everybody, I own an HD2 that is alway connected to a table cradle (connected via USB to a PC) during the day when I'm in Office. I wonder if exist an app that allows to manage the battery charging: I explain...I'd like that the HD2 AUTOMATICALLY "turns off" the charging when the battery is fully charged at 100% and automatically "turns it on" again when the battery charge reaches a given threshold (60-50-40% or something like that). If you own an IBM/Lenovo Laptop I'd like something like the power managment app. Of course the data syncronization HAVE ALWAYS TO STAY TURNED ON regardless the chargin of the battery.
Does it exist somehing like that?
Thanks and regard
Andrea
There is a setting that allows for the battery not to recharge when connected to a PC. Other than that, I completely fail to see what would be the purpose of what you are asking.
pedmond said:
There is a setting that allows for the battery not to recharge when connected to a PC. Other than that, I completely fail to see what would be the purpose of what you are asking.
Click to expand...
Click to collapse
thanks for your answer! I already know the setting you're talking about, but as I told early I'd like something that manages this setting automatically. The purpose is to avoid the decreasing of the battery lifetime caused by letting the battery itself "always" connected to a charging source. For example in the Laptop PCs it's better to unplug the battery when the laptop is conncted to an external power source/charging unit...
Thanks
Andrea
the dragonlord said:
thanks for your answer! I already know the setting you're talking about, but as I told early I'd like something that manages this setting automatically. The purpose is to avoid the decreasing of the battery lifetime caused by letting the battery itself "always" connected to a charging source. For example in the Laptop PCs it's better to unplug the battery when the laptop is conncted to an external power source/charging unit...
Thanks
Andrea
Click to expand...
Click to collapse
Most modern devices (and, I believe the HD2) actually disconnect charging when the battery is at 100%. The green light doesn't mean that your HD2 is still charging, but that it's at 100%. Therefore I don't believe you actually shorten the battery life by keeping it plugged in.
pedmond said:
Most modern devices (and, I believe the HD2) actually disconnect charging when the battery is at 100%.
Click to expand...
Click to collapse
I did believe it too but I have an app wich monitors the battery temperature and still when the battery charge is 100% its temperature remains "high" (35 grades degrees) as long as I keep the device plugged to the cradle. I see the same temperature value when the battery is actually charging...this fact have made me change my mind about the fact that the HD2 disconnect charghing when 100% is reached...
Its not the battery which is getting hot, it's the phone.
If I had a lithium-poly/ion battery that was reaching 35C I'd be very worried!
If your app is showing the battery at 35C, turn the phone off, remove the battery and it should be cool to the touch.
If it's hot then you have a problem.
xaccers said:
Its not the battery which is getting hot, it's the phone.
If I had a lithium-poly/ion battery that was reaching 35C I'd be very worried!
If your app is showing the battery at 35C, turn the phone off, remove the battery and it should be cool to the touch.
If it's hot then you have a problem.
Click to expand...
Click to collapse
you're right, it's the device, not the battery....I'll throw away the temp app!!!
the dragonlord said:
you're right, it's the device, not the battery....I'll throw away the temp app!!!
Click to expand...
Click to collapse
Heat will decrease the life expectancy of the battery, but so will deep charging rather than top ups, remember with non-NiCd batteries you don't get memory effect, so the only reason to do a deep charge is to recalibrate the software battery meter.
Of course leaving the battery sitting on a shelf will also degrade it's capacity, they start to degrade as soon as they're produced, so buying a spare and not using it until your original battery dies is not a good idea, better to buy a replacement battery when the original starts failing.
HTC's batteries actually seem very reasonably priced too which is refreshing.
I'm charging at the moment but I'm only doing some light web browsing. Is anyone having the same issue? BTW I am plugged into wall.
Is your screen really bright, or maybe you have background apps running? I usually just put mine to Power Saving mode and let it charge if I need it charged up because apparently my usage tends to be equal or greater than the charging from the wall..
asdfuogh said:
Is your screen really bright, or maybe you have background apps running? I usually just put mine to Power Saving mode and let it charge if I need it charged up because apparently my usage tends to be equal or greater than the charging from the wall..
Click to expand...
Click to collapse
Okay, cool.
I was a bit scared that something with my Note was "defective" lol
Anyone having charging issue. I ran my shield battery down when I first got it. Then I plug it in to charger. Its been charging over 8 hours and still not at 100 percent. took it off charge at 80 percent. No way it should take this long. I read on reviews it took like 4 to 5 hours.
evobunny said:
Anyone having charging issue. I ran my shield battery down when I first got it. Then I plug it in to charger. Its been charging over 8 hours and still not at 100 percent. took it off charge at 80 percent. No way it should take this long. I read on reviews it took like 4 to 5 hours.
Click to expand...
Click to collapse
You used the charger that it came with? And you're not playing games the entire time it's charging, right?
agrabren said:
You used the charger that it came with? And you're not playing games the entire time it's charging, right?
Click to expand...
Click to collapse
yes I use charger that came with it. and it was charging over night when I was sleeping.
That sounds really odd. What does the battery usage say for the device? Was it awake the whole time? Does it think it was charging all night?
Sent from my HTC One using XDA Premium HD app
I feel like that has happened on my nexus 7 before. I bet it is an android thing. I would try again and see if it acts up a second time.
agrabren said:
That sounds really odd. What does the battery usage say for the device? Was it awake the whole time? Does it think it was charging all night?
Sent from my HTC One using XDA Premium HD app
Click to expand...
Click to collapse
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
evobunny said:
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
Click to expand...
Click to collapse
If you go into the "Battery Info" and touch on the graph area, it'll show you below some bars of time spent on different functions (like charging)
evobunny said:
when I was charging, i close the screen. so it went to sleep. I dont know how you can tell if it think it was charging all night. I went to battery info and its said 13.6 hours on battery. and 48 percent of that was screen usage. rest was on game and apps.
Click to expand...
Click to collapse
1. Sometimes the battery indicator on Android can take a while to figure out your battery. It might drop 5 percent in ten minutes then take an hour to drop 5 more.
2. The vent area on my Shield seems warmer than the surrounding plastic even when in sleep for a while, so it may be drawing more power than is charging. Just try turning it off and charging it.
oushidian said:
1. Sometimes the battery indicator on Android can take a while to figure out your battery. It might drop 5 percent in ten minutes then take an hour to drop 5 more.
2. The vent area on my Shield seems warmer than the surrounding plastic even when in sleep for a while, so it may be drawing more power than is charging. Just try turning it off and charging it.
Click to expand...
Click to collapse
Which vent area? Front or back? Because batteries do warm up when you charge them, and those are some big batteries (and a full 2 amp charge)
agrabren said:
Which vent area? Front or back?
Click to expand...
Click to collapse
The smooth part on the bottom back with the model number, FCC, etc. And it's not when I'm charging but when the lid is closed. If I manually power it down then the warm goes away.
i never recommend running your device down when it comes straight out the box. usually i tell people to just fully charge the device first before running it dry therefore it can register the full battery, personally i would not leave a device connected over night just for the simple fact that it can be one in a million that the device might get screwed over a long period of time.
it be nice to know if the problem is fixed or not and what you did just in case others run into this same problem.
ive had no charging issues yet. batts do tend to get nice and warm tho.
but for what its worth i just noticed that im still getting notification sounds from my Shield even tho the lid is closed. so maybe its some kind of hybrid sleep and if you have some rogue app pulling a ton of CPU cycles & its not going into full sleep so its taking longer to charge?
just some food for thought on your issue
s0me guy said:
ive had no charging issues yet. batts do tend to get nice and warm tho.
but for what its worth i just noticed that im still getting notification sounds from my Shield even tho the lid is closed. so maybe its some kind of hybrid sleep and if you have some rogue app pulling a ton of CPU cycles & its not going into full sleep so its taking longer to charge?
just some food for thought on your issue
Click to expand...
Click to collapse
Like most Android devices, the device goes to "sleep". Unless you power it off, it still handles notifications, and it still talks on WiFi. But it should consume very little power.
elitecmdr666 said:
i never recommend running your device down when it comes straight out the box. usually i tell people to just fully charge the device first before running it dry therefore it can register the full battery, personally i would not leave a device connected over night just for the simple fact that it can be one in a million that the device might get screwed over a long period of time.
it be nice to know if the problem is fixed or not and what you did just in case others run into this same problem.
Click to expand...
Click to collapse
Modern devices use LiPi or Li-ion batteries, these explode when overcharged (seriously, youtube search overcharge lipo). As a result all devices sold with this kind of battery have charge monitoring tools and will disconnect the battery from the charging circuit when full, also they should then run purely from the mains power when the battery is full rather than running on the battery again (they don't like the repeat connect/disconnect effect that would lead to). End result, can't overcharge it.
The heat on mains power tends to be from the voltage regulator. These devices don't run on 5V power like comes from the charger. They tend to use a combo of switch mode and linear regulators to drop the 5V to 3.3V for the CPU and peripherals (3.3 is most common at any rate). Linear regulators in particular get quite warm. Switch mode regulators don't get so warm but don't give a clean output the CPU will run nicely on, they have the odd drop or spike which would either reset or fry the CPU, so generally what happens is the switch mode reg drops a large chunk of the voltage and then feeds it into a linear reg to drop the rest of the way (*the less voltage a linear reg has to drop the less heat it produces). From 5V to 3.3V it is most likely going to be purely a linear regulator, with the CPU and screen drawing at least 1A of current and a 1.7V drop that would equate to 1.7W of heat produced, not much, but enough that if you were to put your finger on the bare regulator chip it would come away red, hold it there long enough and it would be somewhat like those competitions kids have over who can keep their hand on the hot radiator longest That is the main reason they will get hot.
The batteries in these devices are usually 3.7V, that would need a separate regulator from above, and another regulator would still be needed to go from 3.7 > 3.3. 3.7>3.3 would not get so warm. 5>3.7 would still be warm as above.
Never fully drain a LiPo. Gets too low and you damage the cell ir-repairably. When the device claims it is at 0% charge and shuts off is usually closer to 10-20% charge. But that is still considered too low by some people. General advice if you want to prolong the lifetime of your battery is to turn the device off and charge it when it reports somewhere around 5-10% charge.
Batteries do get warm while charging. But my bet is that the voltage regulators would be far more significant heat producers.
agrabren said:
Like most Android devices, the device goes to "sleep". Unless you power it off, it still handles notifications, and it still talks on WiFi. But it should consume very little power.
Click to expand...
Click to collapse
good to know. :good: i didnt think closing the lid was the same as pushing the power button on my phone to turn the screen off.
but the OP's problems still might be "sleep" related.
prime example my SGS3 batt life started to tank after the 1st VZW JB update. it took twice as long to charge & would never "sleep" (cuz of the OS not a app) but since the Tegra 4 is a much higher profile chip it could suck a bit more juice if its not being aloud to fully sleep, for whatever reason.
like you said tho, looking at the battery stats could easily tell us if this is the issue.
SixSixSevenSeven said:
Modern devices use LiPi or Li-ion batteries, these explode when overcharged (seriously, youtube search overcharge lipo). As a result all devices sold with this kind of battery have charge monitoring tools and will disconnect the battery from the charging circuit when full, also they should then run purely from the mains power when the battery is full rather than running on the battery again (they don't like the repeat connect/disconnect effect that would lead to). End result, can't overcharge it.
The heat on mains power tends to be from the voltage regulator. These devices don't run on 5V power like comes from the charger. They tend to use a combo of switch mode and linear regulators to drop the 5V to 3.3V for the CPU and peripherals (3.3 is most common at any rate). Linear regulators in particular get quite warm. Switch mode regulators don't get so warm but don't give a clean output the CPU will run nicely on, they have the odd drop or spike which would either reset or fry the CPU, so generally what happens is the switch mode reg drops a large chunk of the voltage and then feeds it into a linear reg to drop the rest of the way (*the less voltage a linear reg has to drop the less heat it produces). From 5V to 3.3V it is most likely going to be purely a linear regulator, with the CPU and screen drawing at least 1A of current and a 1.7V drop that would equate to 1.7W of heat produced, not much, but enough that if you were to put your finger on the bare regulator chip it would come away red, hold it there long enough and it would be somewhat like those competitions kids have over who can keep their hand on the hot radiator longest That is the main reason they will get hot.
The batteries in these devices are usually 3.7V, that would need a separate regulator from above, and another regulator would still be needed to go from 3.7 > 3.3. 3.7>3.3 would not get so warm. 5>3.7 would still be warm as above.
Never fully drain a LiPo. Gets too low and you damage the cell ir-repairably. When the device claims it is at 0% charge and shuts off is usually closer to 10-20% charge. But that is still considered too low by some people. General advice if you want to prolong the lifetime of your battery is to turn the device off and charge it when it reports somewhere around 5-10% charge.
Batteries do get warm while charging. But my bet is that the voltage regulators would be far more significant heat producers.
Click to expand...
Click to collapse
yes while all this your saying is true i still wont risk it. i say this from experience had a note 10.1 and would leave it over night charging and sure enough it ended up screwing up. might of been there was something wrong with the device itself but still. good post on your behalf though :laugh:
but still im paranoid and prefer to just disconnect once its charge it wont hurt
elitecmdr666 said:
yes while all this your saying is true i still wont risk it. i say this from experience had a note 10.1 and would leave it over night charging and sure enough it ended up screwing up. might of been there was something wrong with the device itself but still. good post on your behalf though :laugh:
but still im paranoid and prefer to just disconnect once its charge it wont hurt
Click to expand...
Click to collapse
I tend to go into way too much detail sometimes :/
Disconnecting can't harm it at least if that's what you prefer.
As for info source. Quite into electronics and robotics, intact the shield would make a good controller for robotics purposes
well i did my second charge last night. and this time much faster, about 5 hours to 100 percent. guess i dont have a problem after all. dont know what happen the first time.
SixSixSevenSeven said:
I tend to go into way too much detail sometimes :/
Disconnecting can't harm it at least if that's what you prefer.
As for info source. Quite into electronics and robotics, intact the shield would make a good controller for robotics purposes
Click to expand...
Click to collapse
no worries lol i tend to get spaced out at times and go into details does not hurt to enlighten people :good:
My tylt Qi charger heats my battery to 110F (updated). Ive been told that for some reason all Qi wireless chargers heat the battery this much in this particular device.
Please tell us your charger and max battery temp during charge. There are a lot of apps that will tell you max battery temp and here is the one I use
https://play.google.com/store/apps/details?id=com.fsinib.batterymonitorpro
Please charge from at least 50% down and give us the max temp during charge as opposed to the final temp at the end.
111F, 44C nokia dt 9000
110F, 43C tylt vu
106F, 41C koolpad
102F, 39C choe
102F, 39C google LG stock
102F, 39C DT-910
093F, 34C generic (need longer test)
090F, 32C ravpower (need longer test)
Thanks to everyone reporting so far!
NCguy said:
My tylt Qi charger heats my battery to 108F. Ive been told that for some reason all Qi wireless chargers heat the battery this much in this particular device.
Please tell us your charger and max battery temp during charge. There are a lot of apps that will tell you max battery temp and here is the one I use
https://play.google.com/store/apps/details?id=com.fsinib.batterymonitorpro
tylt vu max 108F
Click to expand...
Click to collapse
ive heard complaints about overheating nexuses but mine only get up to around 34degree C which is something like 90deg F. that's with a case on the phone as well. i read a little about the Qi standard and the phone is supposed to command charging current so external interference or losses in the reciever coil don't cause the charge current to be lower than the the transmitter is regulating. so maybe some batteries are subject to inductive heating, maybe some phones have a short in the reciever coil. but mine charges to 100% and never gets hot....
I was charging with a Nokia DT 9000. Threw it on at 30 percent. A few hours later I felt it with my hand and it was rather warm so I checked the temp and it was 44C so I pulled it off.
Edit: in a Ringke slim case
Sent from my Nexus 5 using Tapatalk
Dani897 said:
ive heard complaints about overheating nexuses but mine only get up to around 34degree C which is something like 90deg F. that's with a case on the phone as well. i read a little about the Qi standard and the phone is supposed to command charging current so external interference or losses in the reciever coil don't cause the charge current to be lower than the the transmitter is regulating. so maybe some batteries are subject to inductive heating, maybe some phones have a short in the reciever coil. but mine charges to 100% and never gets hot....
Click to expand...
Click to collapse
34C is actually a bit over 93F, but much cooler than I have seen reported so far. Which charger and what temp reporting app?
ravPower charger. Went from 80% to 100% in 40 minutes. So half as fast as the stock USB wall charger but still better than I thought it would do. Temp never exceeded 90 degrees.
ok, seems the battery actually cooled while i was installing the app. i installed smart battery monitor. since i posted that, it went up to just under 96 degrees F.still no 108 degrees. but it has been on the charger for over 30 min strait and wasn't off the charger for long before that.
either way i have no problems with heat on my phone, it never feels much warmer than other phones ive had on usb chargers. the charger i'm using is a generic chinese charger. the box has no name brand. i also have a samsung charger but haven't checked the temperature with it. it doens't seem any different.
http://www.amazon.com/Lerway-Wirele...TF8&qid=1385521087&sr=8-2&keywords=qi+charger
Dani897 said:
ok, seems the battery actually cooled while i was installing the app. i installed smart battery monitor. since i posted that, it went up to just under 96 degrees F.still no 108 degrees. but it has been on the charger for over 30 min strait and wasn't off the charger for long before that.
either way i have no problems with heat on my phone, it never feels much warmer than other phones ive had on usb chargers. the charger i'm using is a generic chinese charger. the box has no name brand. i also have a samsung charger but haven't checked the temperature with it. it doens't seem any different.
http://www.amazon.com/Lerway-Wirele...TF8&qid=1385521087&sr=8-2&keywords=qi+charger
Click to expand...
Click to collapse
30 mins is not long enough to test it. You need to let it go from about 50% or less to full. The battery temp will vary a lot depending on the full capacity. My software captures the highest temp achieved during the charge because as it reaches full it will already start cooling down. You need to look at a temp graph of the entire charge cycle.
I just received my Nexus wireless charger and installed the free version of the app the OP linked, will charge overnight and see what the app says.
NCguy said:
30 mins is not long enough to test it. You need to let it go from about 50% or less to full. The battery temp will vary a lot depending on the full capacity.
Click to expand...
Click to collapse
Sure it's enough. If you plan on charging from 50% or less to full then your battery will get hotter. Wireless or wired. It's just how charging works. More time=more heat. Your still well within the safe zone at 110 though.
http://www.mpoweruk.com/lithium_failures.htm
theesotericone said:
Sure it's enough. If you plan on charging from 50% or less to full then your battery will get hotter. Wireless or wired. It's just how charging works. More time=more heat. Your still well within the safe zone at 110 though.
http://www.mpoweruk.com/lithium_failures.htm
Click to expand...
Click to collapse
Then why not charge it for 10 seconds? I'm just trying to get in a full charge cycle to see the max temp. And actually at the end of the cycle your temp should go down due to the way lithium chargers scale down at the end of the cycle. So charging a 95% full battery wouldn't tell us much.
Your linked article says damage starts to occur at 120F. Well, that depends entirely on the particular battery formulation. It's not something you can generalize. Lithium batteries are definitely not all the same. What you can generalize is that more heat means more wear even when below the damage threshold for the specific battery.
37-39°C from ~10% to 100% :good:
NCguy said:
30 mins is not long enough to test it. You need to let it go from about 50% or less to full. The battery temp will vary a lot depending on the full capacity. My software captures the highest temp achieved during the charge because as it reaches full it will already start cooling down. You need to look at a temp graph of the entire charge cycle.
Click to expand...
Click to collapse
the phone was charging for an hour before that and it wasn't off the charger for "that" long. i'm not paying for an app i plan to use once and delete. sorry. i found a free app that will log it. i'll post results in the afternoon but the phone has never ever been warm enough for concern or even a second thought.
roli006 said:
37-39°C from ~10% to 100% :good:
Click to expand...
Click to collapse
Which charger are you using?
Dani897 said:
the phone was charging for an hour before that and it wasn't off the charger for "that" long. i'm not paying for an app i plan to use once and delete. sorry. i found a free app that will log it. i'll post results in the afternoon but the phone has never ever been warm enough for concern or even a second thought.
Click to expand...
Click to collapse
Thanks for your help. There's a free version of the app I linked and I also mentioned that there were many apps available that measure battery temp. I certainly wasn't try to get anyone to purchase that app. I simply made the link available because that was what I personally was using. If someone comes up with one that has better graphics please link it as I didn't have time to evaluate all the apps in this group.
NCguy said:
Which charger are you using?
Click to expand...
Click to collapse
I bought this for 30€ (~40$)!
http://www.amazon.de/induktive-Lade...TF8&qid=1385559057&sr=8-4&keywords=B00E5D70ME
It is small and has a rubberized ring and the phone stays in position! I can also lay a small bag between the charger and the phone (http://www.amazon.de/fitBAG-Handyta...qid=1385559718&sr=8-2&keywords=nexus+5+fitbag). The only disadvantage is that you need your own power supply unit for this!
I think the product is identical with this on amazon.comhttp://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias=aps&field-keywords=qi t-200
Official Google/LG wireless charger, phone was on it all night last night and highest temp reported was 101.5F and today while on subway and or roaming my battery temp hit 102.6F. This is with the bumper case on and phone in my shirt pocket under a jacket. I am inclined to think that if the phone gets that warm when roaming or searching then the charge temp is just fine.
Raistlin1 said:
Official Google/LG wireless charger, phone was on it all night last night and highest temp reported was 101.5F and today while on subway and or roaming my battery temp hit 102.6F. This is with the bumper case on and phone in my shirt pocket under a jacket. I am inclined to think that if the phone gets that warm when roaming or searching then the charge temp is just fine.
Click to expand...
Click to collapse
That charging temp doesn't seem too bad to me as compared to the data from the other chargers reported so far. Keep in mind that high battery temp as a result of charging is much worse than rise due to ambient or discharge.
I think the jury is out as to how much affect high charge temp will have on the Nexus 5 battery. No one seems to have any specs and I think experience is going to be the only way to really know. I think we can safely say the temp rises significantly more than with the usb charger.
from what i've read about Qi i dont thnk the problems are with chargers unless they are just ignoring the charge controllers requests to lower current. the 5w charge power is supposed to be regulated by requests from the receiver (phone). so if the phone is heating it may be a phone defect like a short in the coil causing eddies and heating the coil. but i guess there can be factors with the charger...
ok second (this time proper) test with my generic chinese $18 charger.
30-37deg C, graphed out with Battery Info app. 27%-100% screen on the whole time with the phone in a case. thats almost a worst case scenario.
I get around 40 °C (104 °F) with either the TYLT VU or the Koolpad. I usually start at around 50% SOC and it peaks at around 90% SOC. After that the temperature drops a few degrees. I attached a typical profile with the Koolpad.
stbxxl said:
I get around 40 °C (104 °F) with either the TYLT VU or the Koolpad. I usually start at around 50% SOC and it peaks at around 90% SOC. After that the temperature drops a few degrees. I attached a typical profile with the Koolpad.
Click to expand...
Click to collapse
Looks like 41C on the chart. Do you have a chart you can post for the tylt?
Since you already know that Pixel 4a supports 18W charging through USB C-C using USB-PD. Is it possible to charge the device a bit more slowly to keep the battery cool and possibly increase its life span?
A simple Google search showed that by using USB A-C cable, it won't be doing USB-PD quick charging instead it will charge using USB-BC (Battery Charging, a legacy standard) which will limit the power at around 7W.
By attaching USB-C end of the quick switch adapter(OTG) that came with the device to power adapter and connecting its other end (USB-A) to the device itself by running a USB A-C cable in between. Will this make the device charge slowly? Can anyone test this?
To find out for sure how much current is being used to charge your phone, you should install an app like this:
Ampere - Apps on Google Play
Measure the charging and discharging current of your battery.
play.google.com
JohnC said:
To find out for sure how much current is being used to charge your phone, you should install an app like this:
Ampere - Apps on Google Play
Measure the charging and discharging current of your battery.
play.google.com
Click to expand...
Click to collapse
question is on how to slow charge the device
Well, just get a 1amp charger or use a non-quick charge cable.
The problem is that you won't know if an amazon description for a cable is accurate or not.
So, the way to make sure it is charging slow, is to use the app I mentioned.
I charge my pixel 4a with a 350 mah charger (it is an old Motorola charger in micro usb, i just put à micro usb to usb c little gizmo).
It is around 1,5 w and charge my pixel 4a in around 10 hours , if the pixel is completly empty. You can also use a 5w charger with a usb a usb c câble, it will be faster but warmer
Any brick or cable that doesn't support that protocol or can't supply enough amps will cause the power controller to default to slow charging.
Most fast charging capable phones also have a software option to disable fast charging regardless of the brick/cable's rating.
The real trick is getting it to fast charge when you want it to
My goal was to charge my pixel 4a during the night with the slowest method to keep my battery as Healthy as possible. The 350mah just give me that. ( i keep my phone four to five years so i Try to take care of my battery)
lop1 said:
My goal was to charge my pixel 4a during the night with the slowest method to keep my battery as Healthy as possible. The 350mah just give me that. ( i keep my phone four to five years so i Try to take care of my battery)
Click to expand...
Click to collapse
Don't let it drop below 40% or charge beyond 72% in that case.
At some point it's just easier to replace the battery though
blackhawk said:
Don't let it drop below 40% or charge beyond 72% in that case.
At some point it's just easier to replace the battery though
Click to expand...
Click to collapse
This seems more an urban legend this 40 72%, the charging processor take care of that For you.
lop1 said:
This seems more an urban legend this 40 72%, the charging processor take care of that For you.
Click to expand...
Click to collapse
Li's prefer midrange usage with frequent partial charges. Cuts down the heat and the high cell voltage that degrades them faster. Degrades them only a fraction of a full charge cycle. Longer lifespan and less time charging for the same amount of mAh. Win-win.
Even today many confuse their requirements with NiCads Thinking they should fully charge/discharge them. Trying to convince some them otherwise is like talking an alcoholic out of drinking booze. "I've always done it that way..."
@blackhawk
but if someone who follows this 40-80 rule, how to reset battery stats?
Can it be done using ADB command?
ashutoshmn said:
@blackhawk
but if someone who follows this 40-80 rule, how to reset battery stats?
Can it be done using ADB command?
Click to expand...
Click to collapse
I really don't use those stats at all. More Google hype that never proved all that useful for me.
I use Galaxy Labs Battery Tracker, the history log* of Accubattery as well as karma Firewall logs to track usage.
Occasionally you may want to do a calibration too as the % accuracy will drift over time.
*as long as my usage stays at >10%@ hour SOT, I'm not very concerned
blackhawk said:
I really don't use those stats at all. More Google hype that never proved all that useful for me.
I use Galaxy Labs Battery Tracker, the history log* of Accubattery as well as karma Firewall logs to track usage.
Occasionally you may want to do a calibration too as the % accuracy will drift over time.
*as long as my usage stays at >10%@ hour SOT, I'm not very concerned
Click to expand...
Click to collapse
and by calibration, do you mean drain to 0 and charge to 100 every once in a while?
ashutoshmn said:
and by calibration, do you mean drain to 0 and charge to 100 every once in a while?
Click to expand...
Click to collapse
Yeah, which I don't like doing. If falls way out of calibration you'll think you're at 20% when in fact you're at 7% for example.
Many say to repeat the calibration cycle 2 or 3 times for it to take.
If the battery has failed this can be a dangerous procedure. How do I know? Just had a battery failure but because of the case didn't see the back cover bulging. All the while I was happily torturing the bad cell for over a month begging it to do its worse
I was fortunate it didn't damage the display of my Note 10+ or worse.
If you encounter erratic fast charging, reduced battery capacity always suspect a battery failure and look for the telltale back cover bulge. These bag Li's can fail at any time especially as they get older.
BTW, people who are reading this, you can charge your 4a at 7.5W (5V*1.5A) using OTG adapter plugged into the charger and a USB A-C cable. The temp. increase of battery is way less than full fast charge of 18W.
ashutoshmn said:
BTW, people who are reading this, you can charge your 4a at 7.5W (5V*1.5A) using OTG adapter plugged into the charger and a USB A-C cable. The temp. increase of battery is way less than full fast charge of 18W.
Click to expand...
Click to collapse
Also bare in mind that even when slow charging you never want the Li cell temp below 72°F, but 82F is a better bottom threshold temperature.
Li plating* can result from cold or hot (>100F) charging regardless of charging rate.
NEVER EVER attempt to charge an Li in near freezing temperatures*
*this can lead to a thermal runaway event
blackhawk said:
Also bare in mind that even when slow charging you never want the Li cell temp below 72°F, but 82F is a better bottom threshold temperature.
Li plating* can result from cold or hot (>100F) charging regardless of charging rate.
NEVER EVER attempt to charge an Li in near freezing temperatures*
*this can lead to a thermal runaway event
Click to expand...
Click to collapse
Billions of Li devices in service around the globe. If this was a 'thing' manufactures would prevent charging at low temps. Not debating the wisdom or detremental effects on longevity of charging at low/high temps. No need to season the spew with faux drama.
DB126 said:
Billions of Li devices in service around the globe. If this was a 'thing' manufactures would prevent charging at low temps. Not debating the wisdom or detremental effects on longevity of charging at low/high temps. No need to season the spew with faux drama.
Click to expand...
Click to collapse
Do what you want... and you're own research*.
You offer zero good advice and a half mass flame attempt.
Lead me, follow me or get the hell out of my way.
*https://www.sciencedirect.com/scien...of the internal,also affect the battery power.
Temperatures I suggested are for optimum performance/longevity with minimum chance of Li plating from multiple sources. They are very conservative.
I just had a battery failure on my Note 10+ that started by slow charging it to 100% at about 45-50°F. Boom, just like that. Took over a month to realize what had happened but that's what started the whole mess. I was fortunate the swollen battery didn't damage my display.
Oy vey - self-designated expert in a box with a short fuse. Happy Mother's day, champ.
DB126 said:
Oy vey - self-designated expert in a box with a short fuse. Happy Mother's day, champ.
Click to expand...
Click to collapse
WYSIWYU... call it like I see it.
Mum's been dead for decades.
Hope your's is not... spend some time with her.
You only get one.