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

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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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19 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
25 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 > ...
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1answer
28 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 ...
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1answer
35 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 ...
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1answer
20 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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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 ...
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1answer
61 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
16 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
30 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 ...
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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
27 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
36 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
11 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
65 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 ...
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1answer
45 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
36 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 ...
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1answer
26 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 ...
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0answers
37 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
24 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
39 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 ...
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0answers
28 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 ...
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2answers
55 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
119 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
25 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
31 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
36 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 ...
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1answer
150 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 ...
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1answer
17 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?
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1answer
35 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
98 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
89 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
47 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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1answer
54 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 ...
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0answers
37 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
204 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
43 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
131 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
38 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 ...
0
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1answer
78 views

Samsung Galaxy S2 new battery dying too quickly

I'm trying to figure out if the new battery is faulty or if there could be something else causing the battery to charge the whole night and then die after half a day. If I take out the charger while ...
0
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2answers
431 views

Asus ME302C tablet charging forever and doesn't start

My Asus ME302C tablet was giving charging problem lately and is completely dead now and not starting up. Around 5 days back, its charging got stuck at 55% and it never went ahead even after charging ...
0
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1answer
490 views

How to calibrate a new Nexus 5 battery that's higher capacity than original?

Just got a KBTEL battery that's 3800 mAh compared to the original 2300 mAh nexus battery. I charged it dead overnight, and now its been running for more than 7 hours and the capacity shows below 5% ...
2
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1answer
141 views

Why do “android system” and “androd os” take 30% battery

in the battery stats "android os" takes 16%, "android system" takes 14%. How can i know why?
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0answers
21 views

How can I monitor Android device's battery status through LAN or the web?

I would like to know if there is a way to monitor the battery status of different Android devices across a LAN network. Ideally it would be a web browser interface that shows the battery level of each ...
0
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0answers
53 views

Battery Draining within seconds

I am using Samsung Galaxy S II GT-I9105. My problem is battery draining. It works normally after i charge it full, but as soon as the battery percentage hits 30%, draining accelerates and will go to ...
1
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1answer
238 views

Motorola moto 4g, battery drain, always high media server actitivity

I recently bought a motorola moto 4g, and I quickly noticed that the battery is going low very fast! With no use at all, it's going down 15% percent per hour... The mediaserver is always taking up ...
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1answer
25 views

Is it safe to use an LG charger on a Moto X? [duplicate]

I have a 2014 Moto X, and a Nexus 4. Is it safe to charge my Moto X using my Nexus 4 charger?
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1answer
32 views

Battery Draining Faster than expected

Can someone help me take a look at my stats? I was wondering why my phone is draining faster than I thought it would. As you can see, it's down 98% and Screen is on for just 7M in 23minutes time. ...
0
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1answer
141 views

YouTube app holds a long wakelock. What app settings can I change to keep it from doing this?

I am using an HTC Evo 4g with Android 2.3.5 Gingerbread. I'm trying to deal with apps which keep my phone from entering sleep mode, and the YouTube app is a major offender. With downloaded apps, ...
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0answers
70 views

Bizarre New Battery Behavior in GT-I9300

After my old battery puffed up, it was time to buy a new one for my Galaxy S3 GT-I9300. After I got my new battery, I put it in and turned on the phone as I had some urgent messages to check. I was ...