[Q] Battery Issues - Epic 4G Q&A, Help & Troubleshooting

Has anyone else been having issues with their battery? On several occasions when I have been charging my phone, the battery indicator will stay at whatever percentage it was at before I plugged it in and my phone will reach temperatures above 100 degrees Fahrenheit. When I pull the battery and restart my phone, the charge is way higher from what it was previously, like from 7% to 65%. I don't think it has anything to do with how I treat my battery, I always unplug it when it hits full charge and drain it to 0% once a month. This only started happening recently and I am wondering if I should replace my battery.

I've been have several issues with battery as well. Best thing I can say is charge the phone to max while the phones off. Then boot to CMW and wipe battery status. Usually after that if u end up rebooting you'll have to connect charger then unplug to refresh battery percent.
(Read all my recently posted to find more information)
Sent from my Epic 4G using XDA App

Related

Desire Battery Voltage Issue

Hi all,
I've been having issues with my phone lasting nowhere as long as my girlfriends identical one,
I installed Quick System Info on both phones, Killed all tasks.. Not only is my display duller than hers on the lowest setting using the power control widget but the voltage on my battery is 3737mV while hers is 4071mV..
Is this cause for concern?
Update, forgot to mention, this is from a full charge on both handsets.
Sounds like your battery is fu#ked!
There seems to be an issue with the way android reports the battery voltage. If I leave my phone on the charger until the light goes green and the indicator says 100%, the voltage will often report between 4.146v - 4.156v.
Upon unplugging the phone would drop to 99% and 4.125v almost immediately.
I noticed the other day that after leaving the battery on the charger overnight the voltage was reporting as 4.206v and I was able to use the phone for over 15min before it dropped to 99% from 100%.
Minimum voltage before your phone powers off is around 3.6v - 3.650v. So 3.737 is pretty close to the cut-off point. The OS is may report 100% charge but your battery is not holding charge.
I had a battery on a different device that was like this. The battery had collapsed. I could charge it for 24hrs and it would not make a difference. Within 30min of use or 1 phone call it would die.
Does your battery have any bugles, bumps or protrusions? This is often a sign of a collapsed battery.
Edit: Don't write when you're tired, silly things come out of your fingers! Soz!
have you tried to swap batteries between the two phones. That will exclude either your phone or the battery from being faulty.
Yes, after scratching my head for a few days I did eventualy come up with the genius idea of putting the battery from the other phone into my phone!! and after charging it up, set it down for an hour and then checked and the battery was on 98% !!
So it looks like there is something wrong with my battery, This morning I woke up and my phone had been charging for 7 hours and was fully charged, I looked at the battery meter and it said 100%, I turned the phone off then back on and checked again.. 90% ???? WTF ??? just from turning the phone off and on?

Fully charged battery drops 10% charge for unknown reason

Hey people,
I've noticed this strange effect (which I notice using the Battery Graph app to observe how my usage drains the battery). When charging the phone, the phone will increase in charge constantly and gradually as expected. However when the phone is charged, I have seen it drop approximately 10% of charge. I've seen this in 2 situations:
1. When I disconnect it from the charger.
2. On on instance before I disconnected it from the charger when I had left it for an overnight charge. However, according to the graph, it had dropped 10% charge from full while connected to the charger then simply gone back to 100%. When I took it off the charger it stayed at 100%.
I should not that neither situation happens all the time. But situation 1 is a bit more frequent.
This is also not a Froyo issue as I only upgraded to Froyo yesterday and it happened to me this morning, but has happened before Froyo. The Battery Graph app takes a reading every 5mins and it is within this 5min period that the charge has dropped 10% which would probably rule out most apps. And again, this can happen the instant I take it off the charger.
Any ideas???
Cleargrey said:
Hey people,
I've noticed this strange effect (which I notice using the Battery Graph app to observe how my usage drains the battery). When charging the phone, the phone will increase in charge constantly and gradually as expected. However when the phone is charged, I have seen it drop approximately 10% of charge. I've seen this in 2 situations:
1. When I disconnect it from the charger.
2. On on instance before I disconnected it from the charger when I had left it for an overnight charge. However, according to the graph, it had dropped 10% charge from full while connected to the charger then simply gone back to 100%. When I took it off the charger it stayed at 100%.
I should not that neither situation happens all the time. But situation 1 is a bit more frequent.
This is also not a Froyo issue as I only upgraded to Froyo yesterday and it happened to me this morning, but has happened before Froyo. The Battery Graph app takes a reading every 5mins and it is within this 5min period that the charge has dropped 10% which would probably rule out most apps. And again, this can happen the instant I take it off the charger.
Any ideas???
Click to expand...
Click to collapse
your asking to get slapped asking this question its been discussed in so many threads lol heres the score, when charging with the phone on, when ur charge reaches 100% it then discharges to 90, it will follow this cycle untill you unplug it, this is called exercising the battery, and i assume it a preventative method to stop you damaging your battery by overcharging it
I will consider myself duly slapped for not checking it up. I normally tell other people they should have checked!

[Q] Strange battery percentage drain in 10 minutes.....wtf

This morning after I got ready I took my phone off the charger (it had been charging all night and was at 100%) and walked upstairs. About 10 minutes later I turned on the phone and it was at 67% and going down. I had flashed a new rom yesterday and as quick as I could I did during the drain I did a NAND restore. Could this have been actual battery drain or is there something wrong with my phone/stats. Could my phone have stopped charging at 50% and then just said it was 100%? What should I do? Is there anyway to avoid this from happening again?! I cant go to work with a battery at 50%! lol
-.- Searching is your friend.
The Evo has never trickle charged properly. Trickle charging is when you hit 100% battery while charging and the phone will continue to keep the battery charging and maintain this 100%. So 100% > 99% > 100%.
The problem is the Evo doesn't do this. Once it hits 100%, it switches to battery. It will run off the battery till it hits about 90% and then charge again. Some even say it will NEVER charge again after it hits 100%. So when you unplug it in the morning, you end up dropping extremely fast from 100% to 90%.
There are kernels in the development section that fix this issue but there are people who say it will break your phone or burn your battery out faster over time. When trickle charging, your phone will get hot as its constantly draining and charging. That can lead to a burned out battery as time goes on or a damaged phone. I personally have three batteries. I still tried to use this and noticed a drastic improvement but my phone was also pretty warm when I picked it up in the morning. Its up to you.
Also you might want to see if you have your 4G radio on. That is probably the only thing I can think of that would drain it that fast. Either that or your GPS is on and theres an app running thats using the GPS receiver.
i'd say a 30% drain in 10 minutes is unnatural. it wouldnt be myns rls4 that you flashed, would it? this is experianced by some as a "first day side effect". just fully drain and fully charge the battery a few times and you will be fine.
It could be that it just needs a couple drains and I don't want to quickly point the finger at an app that you are using. A lot of times if I actually charge my phone it will be on 92% when I wake up. 67% is a stretch unless that was 10 minutes of a game or YouTube..but still. Drain the battery a few times and see what happens.
i was thinking maybe its some kind of battery stats problem? Could that have caused it?

[Q] Why is my battery losing life, or not displaying correct percentage?

About a month ago, I flashed Gingerbread onto my Epic 4G. Did nothing else, been running the usual BatteryLife by CurveFish without any hiccups or fluctuating readings.
However, recently, I don't seem to be getting a full charge. Or, the battery likes to drain. Either that or BatteryLife is not giving proper readouts anymore. For example, I can plug my phone in and let it charge. Its LED will go blue and the widget shows 100%. But, now, sometimes I'll look at the phone again later (while it's still connected with the charging cord or not) and the widget will read something like 82%. And, just now the widget is now showing 78%.
My battery has been fully discharged and recharged many times before for proper calibration. I even ran a battery calibration app. Still, this problem happens. What exactly is going on? I have had the phone tethered to remain charged and never once had a problem with the battery. I do know when I flashed Gingerbread, my battery life has increased dramatically.
Charge till you get the fully charge notification
Then turn off
Then go into click work recovery
Go to advanced
Click reset battery stats or something like that
Put back on charger
This proly happens cause of overheats from the super crap **** gb leaks
Also discharging the battery doesn't help
Sent from my SPH-D700 using XDA Premium App
Then, why does everyone say to get the most out of your battery, you discharge it fully then charge it up to 100% about a couple times to maintain proper battery life and calibration?
There is an issue with some installations of the gb leaks where the battery stops charging at 100% even when it is still plugged in. I had this issue and could not remedy it. Went back to a solid ec05 base and my charging works fine again.

Weird battery charging behaviour

Hi all,
My One X charges strangly I think. It charges really fast from about 80% give or take. It should charge slowly (given the nature of the battery). When it says the battery is charged, I unplug the device and within 15 minutes or so the battery is already at 90%. I have a feeling that the device somehow think the battery is fully charged while it is not really the case. Could this be resolved by doing a factory reset so that the battery stats will be removed? Or should I seek some other solution for it?
I'm currently on stock 1.28.xxx.x, the same problem occured at 1.26.xxx.x.
In the attachment I made a sketch of the behaviour of the charging
cheers
+1
Same here. Tried the factory reset after the 1.28 OTA, but am still getting the same pattern.
Sent from my HTC One X using XDA
Someone said battery was improved after about 3weeks use. So 7days! For me left!
Sent from my HTC One X using XDA
The green charging light goes on at ~95%. When the phone charges all the way to 100%, it disconnects itself from the charger until it goes back down to say, 95% again. When it hits 95% it will then charge itself back up to 100%, and this cycle will repeat. That's why sometimes when you pull the phone off the charger it is down to 90% or 95% or whatever sometimes within a few minutes.

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