For questions related to batteries on Android devices. Questions about battery life should be tagged with [battery-life]

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16 views

Is there a universal way for a circuit to detect battery life and report it to the stock OS?

It must be noted that I know very little about programming, and don't even own an Android device, however I am considering building one(Learning whatever it takes.) My question is simply, if I were ...
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0answers
22 views

How to troubleshot: IpcThreadState log spam / system_server eating battery

The last days, i encounter the issue of my phone draining its battery fast (about 10-15%/h when idle). I'm trying to see what's happening, there are no unusual or suspicious alarms or wake locks. ...
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0answers
6 views

android battery problem

I have had common problem when charging my phone with Android the battery reaches 90 percent and the time on battery resets to zero and 89 percent it remains on showing exact time on standby - is this ...
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0answers
44 views

Galaxy S5 keeps restarting

I have recently gifted a Samsung Galaxy S5 and every time I turn it on I face with message: check battery cover Something similar to this one But my main problem is that it restarts randomly ...
0
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1answer
32 views

Massive battery drain after factory restore

I've been struggling the last couple of days figuring out a way to solve my mass battery drain issues on my android phone (Samsung Trend Android v 4.2.2). Since my time for finding a solution was ...
2
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1answer
56 views

Computing when on charger - long term effects on battery life

Donating your computational power for scientific projects is, in some cases, available for Android. One of them, the World Community Grid, states that "Using the application will not significantly ...
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0answers
20 views

Tablet wont get charged after continous use of a different charger

My Android tablet had a charger with output 5.0V 2000mA. Of course, it got damaged and i found another charger that suits the size.Its output was 5.0V 880mA.I used it for months.I noticed my tablet ...
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1answer
61 views

Why is my WIFI always on?

I have turned off WIFI in the settings, but it's still always running. Doesn't this graph indicate that WIFI is really on all the time? How can this be when it's definitely "off" in Settings? I'm ...
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0answers
17 views

Google Play Services Battery Drain [duplicate]

I have sony xperia l running Android kitkat4.4.4 AKOP rom I want to ask that my phones google play services draines my battery 60% to 80% I tried all kind of fix but nothing sloved my problem ...
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1answer
70 views

Abnormally high battery drain

My battery drains extremely quickly, it can deplete completely in just over 1 hour. It can even drain faster than the charger can supply. Here is the battery graph after less than 60 minutes of ...
3
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0answers
94 views

Battery Drain from mysterious wake locks

I have an huge battery drain issue on my OnePlus One running Android 4.4.2 on stock ROM CM11s O5Q with FrancoKernel R35. I googled and searched so many times but couldn't find anything and I am really ...
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0answers
18 views

Battery life indicator issue on Alcatel One Touch Fierce 2

I have Alcatel One Touch Fierce 2. When I charge my phone to 80%, within 10 minutes it's on 75, and as soon as it hits 50, it drops down to 1 and up and down over and over again. What's wrong with my ...
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0answers
48 views

SGS2: Terrible battery life, I've tried everything I could think of

About 2 months ago, my gf started experiencing an odd problem with charging her Samsung Galaxy S2. While it was connected on charger and on stand-by, it would charge only 5% in like 2-3 hours. ...
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0answers
47 views

Battery percentage shown in lockscreen while charging is incorrect

I have a Samsung Galaxy S-III (rooted & running 4.4.4) with a peculiar problem. According to the Notification Bar toggles, the battery percentage is 82%. The same is shown in Settings > ...
0
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1answer
45 views

Network quality related battery discharge

I'm seeing a ridiculous battery drain on my Android/Samsung Galaxy S4 seeming to correlate with network traffic/signal change (see images below). Please keep in mind that the phone sits idly on my ...
0
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1answer
46 views

My battery dies very quickly [duplicate]

I've had this issue a couple of months ago too but then I could fix it by turning off an option at my WiFi settings. Now the problem is back but it my previous solution doesn't work. I own a Samsung ...
0
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1answer
36 views

How can I have my device charge only when battery is below a given percentage?

So I've mounted my Nexus 7 onto a wall and use it as a sort of info screen / home automatisation device. Now this would require the screen to be on all the time which is why I want it to be connected ...
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0answers
15 views

Battery calibration myths [duplicate]

I have read loads of articles on battery calibration, but I have trouble finding any consistent information. Is calibration even necessary? I mean doesn't android do it automatically, surely it ...
0
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1answer
93 views

battery drain AFTER kitkat update

On Samsung S5 AFTER installing KitKat last week, the mm-qcamera deamon usage has drain down full battery in 7hours (before update 12+ hours uptime was the average. Hopefully an urgent fix is coming. ...
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3answers
17 views

Is it better to take your phone to the store to have the battery replaced? [closed]

I recently upgraded to a smartphone and am learning my way around it. I like to do things myself whenever possible, so I'm wondering: When the time comes to replace the battery, should I take it in to ...
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0answers
38 views

Nexus 7 max battery capacity dropped so fast

I own a Nexus 7 2012 running Android 5.0.2 Two months back when I installed battery doctor and checked my maximum battery capacity it showed 3950mAh. Uninstalled the app, yesterday I re-installed the ...
0
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0answers
7 views

Can I leave my note 2 charging? [duplicate]

The guy I bought my phone off of said there was a problem with the note 2, where i should not leave my phone plugged in all the time becuase the battery could overheat of whatever.. So I dont have it ...
0
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1answer
36 views

How to replace Nexus 5 battery?

As we all know, the battery in the Nexus 5 is sealed inside the phone chassis and cannot be replaced by the owner the way other phones' batteries can be. I am not particularly in favor of ...
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0answers
38 views

Battery down over night?

I only found a question where the cause of this problem was the exchange service. But in my case the battery went down from 80 to 9% over night, with 55% consumed by Android OS. What are the services ...
0
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1answer
14 views

What would happen if the kernel was somehow modified to avoid sending the shutdown signal?

I'm assuming a signal is sent when the battery reaches some critical level. If that signal was programmed to be ignored somehow, what would me most likely to happen when the battery depleted its ...
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0answers
97 views

com.avast.android.mobilesecurity still using 30% of battery power even after I uninstalled the app?

On my Samsung Galaxy s5 I found out that avast was draining my battery, so I uninstalled it. Even after rebooting, by battery usage still shows something called com.avast.android.mobilesecurity (with ...
0
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1answer
48 views

SD Maid on Rooted Roger's Galaxy S3 hanging on “System Cleanup” and “Duplicate”

My phone is a rooted Canadian Samsung Galaxy S3 (SGH-I747M) running stock 4.4.2. I've had SD Maid installed for a very long time and it's worked great up until now. I've never had any issues with it. ...
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0answers
47 views

Nexus 4 red light appears when trying reboot (power button + vol)

Yesterday my phone fell out my bed, I picked it up and trying to turn on and nothing. I start charging my Nexus 4 and nothing appeared (battery signal). I pushed the power button and the screen turns ...
0
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1answer
28 views

Karbonn Titanium S1 suddenly switches off

My Karbonn Titanium S1 smartphone switches off when I open the gallery, play any game, listen to music or do anything with the phone without connecting the charger. The screen starts to shrink and the ...
0
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0answers
56 views

Configure android phone to start charge only after discharging 70% or below

I have an application where my phone needs to be in continuous charging mode. I understand most smart phones would have a mechanism that cuts off charging after the phone has been charged to 100% and ...
0
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1answer
30 views

How can an NFC battery's NFC functionality be used on Android devices? [duplicate]

My Samsung Galaxy SIII comes with a battery with an Near Field Communications (NFC) label on it. Several earlier Android modles don't come with such a label on the battery. I would like to know what ...
2
votes
1answer
49 views

How to use an external sd card and recharge the battery at the same time

I'm an happy owner of the tablet nexus 10. It is very good. Some time ago I've bought the leef connector because I want to use an external sd card : as you can see from the picture,there is a ...
0
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0answers
36 views

Alarm not triggered when battery low (but also when battery full)

I've noticed that on my Android 4.3 Samsung Galaxy SIII, as well as on previous devices, the alarm is not triggered when the battery is low, and any applications that depend on this will thus not be ...
1
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2answers
60 views

My android system and android os are consuming more part of my battery

this problem has been troublimg me from the last few weeks I reported this problem at the Flipkart service center and they changed my battery and software.I even tried a factory reset but to no avail. ...
0
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1answer
175 views

Galaxy S5 Battery Drain

Galaxy S5 (unrooted) My battery drain isn't dreadful yet, but it isn't getting better. I can't narrow down what is causing it. I have tried keeping my sync turned off, keeping google location ...
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0answers
27 views

New Here and would appreciate any advice. Battery issue with galaxy s5

so I'm new to the forum and wanted to see if anyone could help me solve a battery issue I just started having with my galaxy S5. I recently purchased a Gear 2 and downloaded gear manager and it seems ...
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0answers
43 views

Nexus 4 unresponsive and blinking red light when battery at 80%

Tonight, for the second time this week, my Nexus 4 shut down by itself and was unresponsive when I tried to power it up. I had no luck holding the power button. Then I tried plugging it in the ...
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0answers
40 views

Is maximum capacity of a battery in mAh a increasable value? - received fake battery

I think its not. I just bought an extended 3890 mAh battery for my Galaxy S4 GT I9500. The original Samsung battery is 2600 mAh. This is my second purchase from a different seller, after discovering ...
0
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1answer
193 views

edit : battery drain *MYSTERY*

UPDATE 06/02/2015 i have a Galaxy Grand Duos and i constantly faced battery drain issues. after MANY ideas to what the problem could be, (even by samsung service), i decided to root the phone and ...
0
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1answer
19 views

can I replace my tablet battery with a phonoe one

I have a tablet with 3.7v li-ion battery which lasts few minutes on ... and an old phone with the same type and voltage battery can I replace tablet battery with this one? and how?
0
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1answer
40 views

Is it appropriate to heat the device using CPU when it's cold?

If I want the device to heat up for some reason (to warm my hands, to keep the display responsive below 0 centigrades, to avoid battery frost damage), is it appropriate to load all cores of CPU and ...
1
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3answers
118 views

android app to shutdown below certain battery level

Does anybody know of an app or how to programmatically make my phone turn off when the battery level is below 50%? At the moment it does this when the battery level (or voltage) is critically low, ...
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0answers
116 views

Asus ME302C tablet charging problem

This is in continuation to my earlier question (Asus ME302C tablet charging forever and doesn't start). Somehow my account is messed up so posting new question. My ASUS ME302C tablet stopped ...
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0answers
51 views

New Galaxy S5 , Youtube is draining battery by 10 - 15%?

I recently got my S5 and when I look in the battery settings I see that youtube is draining a lot of my battery. I couldnt greenify it and I don't know what to do. Sometimes it goes up to 22%
4
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2answers
66 views

is there a reliable source of charging current?

I am testing several chargers and cables to find the optimal combinations for a fast charge. I was so far using CurrentWidget and was getting just a few values, (independently of how much the battery ...
1
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0answers
46 views

Galaxy S Duos is not charging properly

My Galaxy S Duos doesn't display a charging sign when I plug it in, even though it is charging fine. Secondly, when I use it while plugged in it charges very slowly. A 1% increase takes 4-5 minutes. ...
1
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1answer
380 views

HTC One M8 Charging Issues

I just wanted to check if my HTC One M8 is working fine, I just got it and it's brand new but the battery runs out in 4 hours of non stop use and mobile data usage and when I charge it, it charges at ...
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0answers
52 views

How do I set battery charge min-max range to make it degrade with time less?

As far as I know, LiIon batteries should be kept in about 40%-80% range in order to degrade more slowly. On my laptop I use the following commands to make it change battery conditionally, only when ...
1
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1answer
185 views

Screen flickering galaxy s3

I noticed that my galaxy s3 sometimes show flickering on display when I am for example closing apps. I disabled HW overlays but it didn't help. I read that it can cause battery. My battery is fairly ...
0
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1answer
43 views

Battery warning (?) No words, just an image:

Yesterday, I connected my Huawei u 9805 smartphone to a reliable USB charger when it was at 11, 12, or 13 % (I don't remember, but I have occasionally waited much longer - it warns at about 7 %, I ...