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

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0answers
8 views

How to measure battery capacity (mAh)?

I've bought an Andoid device (Motorolla Droid 4) online yesterday, the seller claims that it's 3300 mAh (and that's one of two reason why I bought it), but when I receive the device and check it, ...
0
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2answers
208 views

I want my phone's lithium-ion battery to remain useful for as long as possible; please advise me on how to achieve such a feat

I own an Android smartphone with a lithium-ion rechargeable battery. I want the battery to remain at least somewhat useful as long as possible — even for five or ten years, if such a thing is ...
3
votes
0answers
20 views

How can I diagnose the battery issue?

My phone's OS is cyanogenmod 12.1 with Android version 5.1.1. Recently I found a battery drain. I set up the airplane mode but after a night the battery went from 100% to 41%. I viewed ...
4
votes
1answer
1k views

Download Manager causes high CPU usage on Motorola Razr with stock Android 4.0

My Razr (Stock ROM 4.0) is very very hot. After some research I found com.android.providers.downloads is responsible, since it's using about 60% of CPU. I have tried killing it, and it respawns, ...
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0answers
6 views

can't do battery checks

On my Sony Xperia E C1505, I can access the service menu via dialing ##7378423##. If I then got to the tests menu, I can test the battery. However, the start level is at -1% somehow, meaning I can't ...
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1answer
14 views

Karbonn A52+ automatically turns off constantly

I'm using a Karbonn A52+ running Android 4.2.2. I have been facing a problem, many times, in fact, most of the times, when I'm using my phone, it automatically turns off (Not when the phone is not in ...
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1answer
34 views

Nexus 4 won't charge or boot (red light)

I have been reading a bunch of articles on ways to fix this "red light" issue. My issue seems a bit different from most articles as the red light does not show up when I plug in my charger. Articles I ...
0
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1answer
2k views

Cannot charge due to low battery temperature on Lenovo P780

My Lenovo P780 won't charge because the battery warning always pop up & says that charging is paused due battery's temperature is too low. I have checked the battery's temperature & it is ...
0
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0answers
11 views

Stuck at battery animation…erroneously

So my LG l86c goes only to the screen with the animation of a battery charging, and only when plugged in, occasionally saying it needs to charge further in order to turn on. If I unplug it, it turns ...
1
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1answer
5k views

Battery goes down from 100% to like 80-75% so fast

Why does my LG L90 battery goes down from 100% to like 80-75% so fast (about 30 mins) and then the battery lasts quite a while? Is it because the battery has been charged only a few times? Because I ...
2
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1answer
33 views

Tablet shuts down due to low battery when battery meter is above 10%

I have a Nexus 10 whose battery-level estimation seems to be inaccurate: when the battery meter gets to around 10% to 15% remaining, the tablet will abruptly shut itself down the way it's supposed to ...
0
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2answers
616 views

mdnsd drains a lot of battery power in Xiaomi Redmi Note 4G. How do I find out which app calls it to run?

I have a Xiaomi Redmi Note 4G, and for few days my battery drains as hell. I checked the running processes, and found that the cause is mdnsd. Is there a way to find which app calls this process to ...
0
votes
1answer
94 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. ...
0
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0answers
34 views

11 “Android System” running

One of them is taking up ~45% of all ram. My battery is dying even when idle and charging. I've scanned for malware on AVG and DU and haven't hit anything. I am on a Verizon Samsung Galaxy Note 4 ...
16
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3answers
27k views

How do I turn off the cellular radio without disabling bluetooth?

I have an old Motorola Droid that is no longer subscribed on any Verizon service. I still use it for things like web browsing, ebooks, and along with some wireless stereo headphones, music. I've ...
2
votes
2answers
5k views

Device Steadily Discharging While Plugged Into AC?

Question: My device (Galaxy Note 2 running the stable CyanogenMod release) is charging extremely slowly and discharges while it's plugged into AC power. What happened to cause this and what's ...
1
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2answers
77 views

Xperia SP looks like it's charging, but it doesn't charge

My phone is Xperia SP, it's on CM 12.1, unofficial build (because the official one is buggy due to bad kernel). It has been bought second-hand, so I'm not sure about its history (the phone was in a ...
0
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2answers
31 views

Google Nexus 4 suddely stop even battery is not empty

My Google Nexus 4 suddenly began to stop unexpectedly at random times. After few times I could not even boot up the OS. I could recover by factory reset wipe from the recovery mode. Unfortunately ...
1
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1answer
25 views

Any way to get battery usage data at finer resolution? [closed]

The biggest battery usage culprits on my phone, according to both the battery settings page and to GSam Battery Monitor, are always "Android System" and "Android OS." I also have "Watchdog" installed, ...
1
vote
2answers
131 views

Quick drain of battery in new phone huawei g play mini?

Here is a screenshot of my battery drain. Is it normal , or should I go to service center ? My previous phone had much less sloppier curve . When I bought the phone I charged it upto 100% and then ...
0
votes
3answers
4k views

Samsung S duos - showing charging symbol but percentage not increasing

I have samsung s duos. Suddently one day, when i was charging .. though the indicator shows charging, the battery level keep going down. I restarted mobile... still same issue. Then i tried with ...
0
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0answers
27 views

how to read batterystats.bin file

How can I read the batterystats.bin file in /data/system?? I want to view some battery anomalies, but I get the junk when the file is opened (assuming encoding is associated)
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0answers
14 views

Battery.bin file needed to be accessed to assess battery issues

I wish to find the battery.bin file without rooting my phone I have some battery issues which I need to solve
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0answers
12 views

Android- Sony Z not charging

have a sony With two years. For an update to Android 5.0 I have a problem with charging my phone when it is switched off and the battery totally 0 % would normally loads, but when the phone is ...
0
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2answers
2k 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 ...
-1
votes
0answers
14 views

Analyze Battery Graph

I forgot my phone at work,like 1 week ago(it was powered off-empty battery).So i want to know if there is way to see if someone enabled it and used it(maybe with a different battery). After a research ...
0
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0answers
18 views

Samsung duos 7582 getting switched off while using net

My Samsung duos 7582 is getting Switched off while using net. I am not able to use net without putting mobile on charging.
0
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4answers
5k views

Samsung Galaxy S2 shuts off when plugged in: screen goes black then a grey empty battery appears

Samsung Galaxy S2 shuts off when plugged in. The screen goes black then a grey empty battery appears for a second then disappears. This "flashes" several times in about 4-5 second intervals. I can not ...
1
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1answer
3k views

Having serious technical problems / crashing on my Samsung i9300

I have a Samsung Galaxy S3 (i9300) that I've been using for slightly over a year. I am a rather heavy-duty user of the phone, and have used in intensively for that time. I do take care of the phone ...
0
votes
1answer
19 views

Weird battery issues

There's this phone I got, it belonged to my girlfriend's mom, but she just gave it to me since it stopped working and I wanted it. The problem is it won't charge. I'll plug it in and the screen will ...
1
vote
1answer
3k views

Ultra STAMINA mode bug on Sony Xperia Z3?

I had a long night yesterday, and at 5am my Xperia had like 10% of battery left, so I put it in Ultra STAMINA mode and fell asleep. This morning, the phone wouldn't turn on as the battery was ...
0
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1answer
19 views

How to reset Battery chart

I have an Android tablet (wifi only; no cell service). Sometimes, I want to reset the chart it shows in the battery menu, so that it only shows the last few min instead of the last who knows how many ...
0
votes
1answer
46 views

Android showing battery at 100% even when left for straight 10 hours in night

Just started using an Android phone and left it overnight to see how long it would last. After about 10 hours the battery is still at 100%, so could there be some kind of delay when it comes to the ...
0
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0answers
33 views

Battery connector pins showing strange voltages for a phone and a tablet

I have a Samsung GT-I9003 phone and a Samsung GT-P3100 tablet. Phone is rated 3.7V 1A, tablet is rated 5V 2A. Phone has an Input:100-240V 50-60Hz 150mA Output:5.0V 550mA charger, tablet has an ...
0
votes
1answer
679 views

Differences in battery information and phones printed labels

I just run across this today: The value for battery current capacity printed on the battery of some Samsung Android devices are different than the numbers printed on the label on the phone (underneath ...
1
vote
2answers
51 views

How can profile (log the charging and discharging current for some time period) my battery?

As the question reads, I want to log the current in milliAmpere or Ampere (both charging and discharging) over a period of time. Please note I am not asking about charging or discharging rate, but ...
0
votes
1answer
8k views

battery draining problem in samsung galaxy note 2

I've replaced my damaged battery with a new one in my samsung galaxy note 2, but it drains too quickly. After fully charging the battery, when I leave the phone without using it (the screen is ...
0
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0answers
30 views

2014 moto x battery life

I'm experiencing an issue with my 2014 Moto X's battery running Android 5.1 and I was wondering if someone have any suggestions or something ... for example, yesterday I had about 30% left of my ...
2
votes
0answers
428 views

Why does my Android 4.4.2 sudden have a battery drain (Wiko Bloom)?

I'm currently using a Wiko Bloom, with Android 4.4.2, using the latest manufacturer update. A few weeks ago I was trying out the Llama app and after a while I noticed that out of nowhere my battery ...
0
votes
0answers
47 views

battery gets drained at a certain time

Lately I've gotten a very strange behavior from my phone: at a certain time (around 23h) the battery begins to drain, it's very annoying because I used to keep the phone on during the night (and as ...
0
votes
1answer
2k 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% ...
1
vote
1answer
30 views

Wet phone, charge symbols shows, but wont turn on

My Galaxy S6 got wet and i dried it out as much as possible. When i plug it in, the charge symbol shows up on the screen and it shows that its fully 100% charged but when i press the On button, it ...
17
votes
1answer
7k views

How does Android obtain battery temperature?

I am curious about the way Android phones obtain the battery temperature. Android has an API called BatteryManager which provides the value of instant battery temperature, but is there an actual ...
1
vote
3answers
933 views

Galaxy Tab 3 won't boot - dead battery?

I'm kind of disappointed, this morning I wanted to start my GT3 but I get this logo instead (sorry for the poor quality) : I've try AB testing with my Nexus 5 battery loader, both works on my ...
1
vote
2answers
60 views

Is there a way to leave the phone plugged in, but schedule when to actually charge it?

Under my normal daily use, my phone would have around 50~40% battery power left before I go to sleep. I don't want to keep my phone plugged in to charge over night, but I do want it to be at 100% ...
0
votes
0answers
233 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 ...
0
votes
1answer
83 views

How to recalibrate the OS for an external battery?

I recently bought an external non-standard 7000 mAh battery for my Samsung Galaxy S3 but the phone doesn't seem to recognize it. Is it possible that the phone needs to be reconfigured or recalibrated ...
0
votes
2answers
252 views

Battery Drain from Android OS and Android System

I've got a Galaxy S5 and recently, Android OS and Android system just seem to be draining my battery. Not done anything extraordinary regarding rooting or anything, it's all stock. I can only manage ...
1
vote
1answer
824 views

Nexus 5 crashes, battery down to 0% on Android 5.1.1

I'm currently running Android 5.1.1 (Chroma custom ROM) on my Nexus 5 and recently have been experiencing some weird issues with my battery, which have appeared more frequently in the last few days. ...
0
votes
0answers
22 views

Battery charge 0% on Galaxy Nexus / Android 4.3.3

I have just connected a charger to my Samsung Galaxy Nexus i9250 phone with Android 4.3.3 and for the first few minutes it showed me (on lock screen) 0% battery charge. Aside of discussion, how bad ...