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Questions tagged [battery]

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

287 questions with no upvoted or accepted answers
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7
votes
0answers
2k 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 ...
5
votes
1answer
2k 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, ...
4
votes
0answers
519 views

500 charge limit on wireless charger for Nexus 4 / 5 (QI)

I recently bought a QI compatible charger for my Nexus 5. On the box it states, that the "wireless charges up to 500 times". I don't understand why the charger is only able to charge my phone 500 ...
4
votes
0answers
332 views

Verizon Galaxy Nexus Discharging When Plugged In Even After USB Replacement

I've got a Verizon Samsung Galaxy Nexus that as of a few weeks ago quit charging - in fact it quickly drains the battery (discharges 2% / minute if not more) while plugged in. I tried different ...
3
votes
1answer
287 views

Android is draining the battery on Kitkat 4.4.2

I have a little bit unusual case of Android draining the battery. Mobile: LG40, Android: Kitkat 4.4.2 Mobile phone was never connected to any data network (wifi or GSM). No updates, no new apps, no ...
3
votes
0answers
653 views

Difference between “unmonitored apps” and mDeviceIdleWhitelist

I've got a Galaxy S8 and have come across an interesting situation. Now, either something strange is going on, or I've got no clue how it actually works! I've downloaded an FTP Server app on my phone ...
3
votes
0answers
110 views

Samsung S4 won't charge from socket

I am looking for help before sending my phone to maintenance service. All of sudden my phone stopped charging from a socket. The phone is charging (bolt showing, charging screen showing etc) but ...
3
votes
0answers
75 views

Is it possible to find out what is accessing the Bluetooth service?

Is it possible to find out what is accessing the Bluetooth service? Right now I have an issue in which my phone will drain after about 8ish hours. The Battery view is showing Bluetooth as the top ...
3
votes
0answers
589 views

Nexus 4 Red Notification light with full battery

I have a problem with my Nexus 4. About once in a week it goes in the "deep hibernation mode" and shows this behavior: Red notification light on Nexus 4, won't power on, device unresponsive My ...
3
votes
0answers
13k views

Excessive data and battery usage with Samsung S7 on Android 6.0.1

Recently I bought a Samsung Galaxy S7. I had an S6 Edge, and no problems with Android OS data usage/battery drain. The big problem is, I don't know why, but Android OS is eating my mobile data and wi-...
3
votes
1answer
314 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 Settings->...
3
votes
0answers
82 views

Is it possible to charge one discharged smartphone from other?

Suppose u are having 2 twin smartphones of same brand. one is fully charged and other one is fully discharged. My question is that Is it possible to charge one discharged smartphone from fully ...
3
votes
0answers
1k views

Figure out why the “System” process on Android is using a lot of CPU

I have a Samsung Galaxy S5 with Android Lollipop. My phone was feeling sluggish. Using an app called "OS Monitor", I see that the "System" process (not to be confused with "Android System") is using ...
3
votes
0answers
14k views

Google Play services using up battery - Why and how to fix it?

Why would Android devices have Google Play services using up the second-most amount of battery usage over a 24 hour period (second only to screen power)? On one device, I see Google Play services ...
3
votes
1answer
173 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 ...
3
votes
1answer
652 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 ...
3
votes
0answers
312 views

Large difference in battery discharge, when Nexus 7 is on and off

My father got a brand new Google Nexus 7 II (2013) LTE tablet few weeks ago. Ever since first use, he was complying about battery discharge rate. Few days ago, I did some measures and I'm quite ...
3
votes
0answers
687 views

Android stuck in downloading mode

So what happened is that my mobile (Galaxy S4 - GT-9500) ran out of charge. When I plugged in the charger and tried to turn it on, it went directly to what I think is the recovery mode (Android logo ...
3
votes
0answers
650 views

Battery life in Samsung Galaxy 3

I recently updated my Samsung Galaxy 3 to Android 2.2 . After the update my fully charged battery dies in just 3 hours(without any use) and around 1 hour if I use it (talking,browsing etc). I am using ...
2
votes
0answers
41 views

Notification if battery drains faster than N% per hour?

Is there any app or other tool to trigger a notification if the phone's battery drains faster than a certain amount per hour? Note that I am not looking for notifications about apps using too much ...
2
votes
0answers
43 views

Android phone plugged into charge 24/7

I currently have an LG E440 (non-stock ROM) plugged on charge 24/7 (connected to mains outlet, not PC) as it runs several Tasker-based routines which need to be seperate from my day-to-day phone. ...
2
votes
0answers
533 views

Google Play Music draining humongous amounts of battery

Around a couple of weeks back, my phone battery started draining really quickly. In the battery settings view, I could see that Google Play Music is consuming huge amounts of battery. I have tried ...
2
votes
0answers
809 views

adb shows different battery capacity

My device is Coolpad Note 3 and it's 15 months old. Recently, I've observed that the battery suddenly drops randomly to 20-30% and shuts down. When I plug it in for charging while it's powered off it ...
2
votes
0answers
42 views

Disbale charging of phone by outlet

Is there any way I can disable charging by outlet in my phone by some software. Kids keep making toy of my phone and I better have excuse that phone is discharged and not charging.I have android 7. My ...
2
votes
0answers
76 views

Force Android to get the most out of a power bank

In a sad case of "two smarts make for a stupid", my powerbank is trying to adjust to the power needed by my Galaxy A3, while the phone, probably trying to do the same, settles for a low amperage. As ...
2
votes
1answer
398 views

What else might be causing battery drain on my Android 6.0.1?

My Galaxy SC-04F, not rooted, recently upgraded to Android 6. Since then, it runs really hot and the battery drains very fast. I looked for solutions on the net, and I found two suggestions: Clear ...
2
votes
0answers
143 views

“10387” using up battery

I have absolutely no clue what this process is. I've never seen it before, and I check the battery usage tab a lot. I'm worried it's a virus or something, although I do have CM Security installed, I ...
2
votes
2answers
6k views

How can I turn off data when my phone's screen is off and only let data come back on once per hour or so to sync apps?

I have been using an app called Doze which turns off data when my phone's screen is off. I'd like to find a way that would turn off data when the screen is off but would turn on data once per hour or ...
2
votes
1answer
372 views

Marshmallow battery optimisation not working on Moto G

I recently got the Marshmallow update on my MotoG 2nd gen (2014). I was hoping that my battery will last longer if I enable battery optimisation. But I cant seem to enable it. I can go to the battery ...
2
votes
0answers
57 views

Series of application freezes and battery discharging fast after turning on flash in camera once

I have LG Optimus L9 P760, Swift L9 with Android system. Few days ago I was using my phone camera and turned on "flash" under settings for it (the lamp). When I wanted to take a photo, camera ...
2
votes
0answers
1k views

Change color theme when battery saver mode is active

I'm using a Nexus 5 with stock ROM. When the battery saver mode activates, the notification and navigation bar's color turn to a bright orange. I find this color very distracting. Is it possible to ...
2
votes
1answer
124 views

Phone got blazingly hot and started to act glitchy

My phone is LG D855 also known as G3 international variant. I had my phone in my pocket normally. After picking it up after 45 minutes, it was hand-burning hot and nothing on the phone was working ...
2
votes
0answers
638 views

Phone's battery is draining unusually fast even when not in use

The hardware I'm using: OnePlus One, bought late december 2014 Stock Cyanogenmod, version 12.1 - YOG4PAS1N0 (= Android 5.1.1) no apps to improve battery life in any way Basically, the battery is ...
2
votes
2answers
962 views

Is there any relation between charging rate and discharging rate?

Sometimes when I do not use the original charger but a different one it would take less time to fully charge the device than the original charger would do. But I can feel that discharging rate is ...
2
votes
0answers
203 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. ...
2
votes
1answer
2k views

Where is the battery animation called?

I have a tablet from China, it's a Q8H Allwinner. It is rooted, and I've browsed the internal storage for hours to find the battery animation, I found them at framework-res.apk... Now I want to find ...
2
votes
0answers
54 views

How to prevent S3 from turning on when charging

I'm trying to charge a new battery with my phone turned off. As soon as I plug the phone in to the wall charger, the screen turns on and the phone tries to immediately boot instead of staying on the '...
2
votes
0answers
256 views

Faulty battery status indication

I have a Huawei Honor U8860 with Android ICS. I use two Mugen Power batteries. I always use one battery until it's empty, then charge it to full while using the other battery. Recently Android battery ...
2
votes
0answers
358 views

time_in_state wrong value

I've been using apps like "BetterBatteryStats" and "CPUSpy" to see what CPU states my phone is most frequently in, but both are reporting the wrong clock frequency. I can only assume they are using ...
2
votes
0answers
1k views

Samsung Galaxy III screen turning on by itself and draining battery

Even though I haven't received any notifications, the screen on my Samsung Galaxy III keeps turning on and draining my battery. What's causing this?
2
votes
3answers
462 views

Battery Popup at 25% english with system in spanish. Possible malware?

First of all, I know this question is duplicated, (this is the original question: Battery Popup at 25% ) but I can't comment or add any reply and I have some information that could be useful to ...
2
votes
1answer
716 views

Mediaserver is eating my phone's battery?

I'm using dual boot on my SGS2 with CM10.1 and JellyBam and both running fine but with some issue of mediaserver draining my phone's battery like a crazy nut. I have checked on Google and got many ...
2
votes
1answer
1k 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 ...
1
vote
0answers
20 views

dropped phone in water and it had holes in it what do i do?

I dropped my lg sty lo 3 in water on accident and it had to holes in the screen the phone turns on but it does not let me click on the screen I put it in rice but it does not work and I don"t have ...
1
vote
0answers
21 views

'Recycling' off-the-shelf Android devices as server ('Toaster-Net')

Since Android devices tend to be relatively low-power un*x devices, this seems like an obvious usage, I was already able to run the basic setup of what I had in mind, but I think it's a right time for ...
1
vote
0answers
26 views

Is it a Kernel or a ROM that provides power_supply battery files?

Long story short I was installing custom ROMs to my Android device and one thing that stays in place regardless of ROM I use is a wrong battery stats monitoring. The device always behaves like it's ...
1
vote
0answers
11 views

Honor 8 bricked after batter replacement

I replaced the battery myself. After finished, I trun on the phone, it vibrates once and the screen light up a little (hardly see it) but cannot boot. When I press and hold the power button, it turns ...
1
vote
0answers
516 views

How can I fix a charging problem on Moto G5 Plus?

A Moto G5 Plus device (Android 8.1.0) was charging and performing normally with a healthy battery response. One morning, instead of being at 100% (expected after charging all night), the phone ...
1
vote
0answers
71 views

Why does my Samsung Galaxy S8 Active no longer “Fast-Charge”?

I bought a refurbished Samsung Galaxy S8 Active in excellent condition about 6 months ago, and it came with the standard manufacturer-provided power adapter and cable for charging (Model: EP-TA20JBE, ...
1
vote
0answers
31 views

Keep android phone running for days

This is our situation: We have an android tablet that must run some stuffs for longer than one day (running videos, musics or other). For this purpose we attached our tablet to an external battery ...