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

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1
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2answers
3k views

How do I turn on battery percentage in Android L?

I haven't been able to find a menu option for this setting in the new Android-L developer preview.
4
votes
1answer
879 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, ...
0
votes
0answers
15 views

Charging issues for Samsung Galaxy S2

Just wanted to see if anyone knows what is going on with my Samsung Galaxy S2. The problem is that when I fully charge the phone normally at night I have sometimes turned the phone off after it is ...
26
votes
8answers
28k views

Why is charging from computer using USB slower than using an outlet?

And what is roughly the ratio of the charging speed in USB vs charger? My phone is Samsung Galaxy S, if that matters.
7
votes
2answers
3k views

How to allow auto-update of apps in Play Store only when plugged in?

I would like apps to be updated automatically when my phone is plugged in (charging) and on wifi. I can easily allow auto-update only when wifi is on with the appropriate option in the Play Store ...
1
vote
1answer
462 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 ...
0
votes
0answers
128 views

Hardware problem: extreme battery drain

I've been experiencing extreme battery drain on my Nexus 4. Basically the phone drains 10% per hour on idle. I flashed the official Android 4.2.2 image and did a reset. I replaced the battery with a ...
4
votes
1answer
2k views

How does the Android OS estimate remaining battery time?

Is it known how the Android OS estimates time to failure / remaining battery charge? I am doing a school project about battery estimation on mobile devices but have not been able to find any ...
1
vote
6answers
948 views

Is it possible to remove the battery percentage on my Samsung S5?

I have a Galaxy S5 running 4.4.2, unrooted. In the top indicator bar, there is an icon of a battery, and a percentage of remaining battery life beside it (not inside of it, as I've seen other people ...
2
votes
1answer
65 views

Where is the battery animation called when charger connected to phone (OFF)?

I have Moto E (Rooted) which turn on when connected with USB via Laptop but not when connected to Wall charger instead it shows Battery animation. I got to know that battery animation is at ...
5
votes
1answer
10k views

Is there an efficient way to calibrate the battery than using some apps?

Is there an efficient way to calibrate the battery of my tablet in order to prove or disprove the very low battery backup than using some Apps.? The context is that my tablet is giving a very low ...
184
votes
6answers
37k views

Does constant charging harm my Android cellphone?

I usually disconnect my cellphone from the charger some time after it's fully charged because I'm afraid the battery could lose capacity over time if I don't. However, I believe modern electronics ...
0
votes
2answers
68 views

Samsung Galaxy S2 keeps restarting and draining battery [closed]

My phone just randomly restarts and after boot this is what happens. I've tried new original battery, nothing. I've tried new kernel and Cyanogenmod, nothing. I've found that many users are having the ...
3
votes
4answers
1k views

my samsung galaxy 2 battery is draining to fast!

I have an Samsung Galaxy S2 GT i9100. I have had it for quite a time, but today I noticed something strange: First my battery had not been charging while I was sleeping: when I woke up I had only ...
0
votes
1answer
1k 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 ...
1
vote
2answers
76 views

Apps continue to use battery despite closing them

I have noticed that certain apps continue to show up in the Settings-->Battery menu (which shows the % of battery used by each app) long after closing them. Here are the list of things I have ...
0
votes
0answers
47 views

LG-P990 (optimus 2x) with CyanogenMod 7 turns off suddenly and battery indicator goes straight from 100% to 0%

I installed CM7 on my LG P990 five months ago and it worked well. Yesterday, I was watching a video on YouTube and my phone turned off suddenly. It didn't want to turn on, and then my battery dropped ...
1
vote
2answers
2k views

“Mediaserver” under Power management / Battery usage (xperia ZL)

I have a Sony Xperia ZL running Android 4.2.2 . There's a background process named "Mediaserver" which uses most of my battery, while the phone is on standby. If I charge it to 100% and leave it ...
0
votes
0answers
109 views

Samsung Galaxy Tab 4

I opened chrome and it shoots a notification that if I don't stayed in the page that it was opened, my battery's gonna die. The page was "top3androidapps.com". HELP. I don't know if it's a virus, i ...
1
vote
1answer
75 views

Can I turn off all “Notification” of all apps, services in Android phone?

I found tips to improve battery in this link: http://www.gottabemobile.com/2012/10/30/hurricane-sandy-crisis-map-puts-shelters-storm-info-alerts-power-outages-on-mobile/ In this link - author said we ...
0
votes
2answers
25 views

HTC One X+ is getting hot. Is it Normal?

The other day my daughter was playing with wife's phone (HTC one x+) and asked me for help. When I grabbed the phone I realised that was so HOT that I think I could fry an egg on it. Is this normal? ...
0
votes
1answer
1k 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
96 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
votes
1answer
34 views

LG Won't Charge

My LG was at 1% battery yesterday so I let it charge for an hour or so but when I came back I noticed that it wouldn't even turn on without turning right back off. It would only turn on to show a "0% ...
0
votes
2answers
1k views

How much battery drain do push notifications cause on Android 4.1?

I've got an S3 on 4.1, and I have a lot of apps which have push notifications. This is convenient, but I want to know if 4.1 is set-up to use push notifications efficiently with regards to battery ...
0
votes
2answers
24 views

My data is wiped out after a battery service

I hit my Nexus 7 with Android 4.2 on it, into a glass bottle. Somehow, internally the battery got disconnected so it didn't turn on. It was only flickering a black screen when attached to a power ...
0
votes
1answer
200 views

My smartphone battery was damaged

Can I change battery for my Motor G (Motorola)? My smartphone's battery was damaged. What can I do with it? It say that I shouldn't remove the battery
1
vote
0answers
27 views

Battery charging however phone not turning on

A while ago I dropped my samsung galaxy s in a puddle, the phone came apart (the battery & back cover came off). I quickly wiped the parts and put them in my pocket (without turning it on), when i ...
5
votes
7answers
2k views

Battery drains even when plugged in while using Nav app on long road trips

I have a Nexus S running Android 4.0.3 and Google Maps 6.8.1. When I use the Google Maps navigation app, the battery slowly drains, even when plugged into my car charger. After 5-6 hours, the phone ...
0
votes
0answers
28 views

Refurbished Droid RAZR MAXX issues

I have had a droid RAZR MAXX for about a year now, and I recently had to get a refurbished one which is giving me a lot of issues, but I cannot return on warranty. Problems include: Fully Charged ...
6
votes
2answers
370 views

Google Goggles Battery use

I have not even opened the google goggles app in several weeks. Why does my phone report that it is using such a large amount of my battery? This is especially disconcerting considering that this app ...
0
votes
1answer
182 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 ...
0
votes
0answers
29 views

Call is not logged if phone dies before answering

If my phone battery is almost dead and I get a call the phone just shuts down after a second or two (due to battery depletion). After I give it some juice and turn it on I don't see the caller in my ...
0
votes
1answer
24 views

Remote Battery management service while SureFox Kiosk is running

I am running PAW Server and SureFox (a kiosk browser) to run some webpages. However, I am experiencing significant battery drainage, and I would like to track battery usage by services as the programs ...
4
votes
3answers
2k views

my battery charge indicator is continually flashing on and off

My battery charge indicator (the screen info saying % full), flashes on/off/on/off, etc. sometimes. I've switched the battery to a spare to see if that helps but it didn't. When it does happen, ...
14
votes
3answers
25k 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 ...
0
votes
1answer
108 views

Can a Custom ROM affect the performance of my battery?

My Device is Samsung Galaxy S4 I9500. A week ago, I flashed a custom ROM on my Device, now my phone's battery drains out even if the phone is on stand by. Previously, it degraded but not so ...
1
vote
1answer
4k views

First battery charge on new tablet?

I got yesterday a Galaxy Tab 3 and I want to be sure what's the best way for the first battery charge. On the shop, they told just turn it on, wait for the battery to finish and then charge it to 100% ...
0
votes
2answers
359 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
votes
0answers
25 views

same phones different vendor change in power usage

My wife and I both have Galaxy S5 phones. Mine is ATT and her's is by Verizon. Both were purchased as unlocked phones, both have performed very well. Up until about a month ago both of us had really ...
0
votes
0answers
53 views

Samsung galaxy 3S, battery is good, phone won't charge or power up

I have a samsung galaxy 3S, about a week ago it rebooted itself, since then it will won't charge or turn back on, I have tested the battery to see if it was that, the battery works perfect, I have ...
0
votes
0answers
22 views

ServiceProvider eating my battery after SIM unlocking

I had my Samsung Galaxy S3 SIM unlocked last week. It runs a rooted Android 4.1.2. Since then, I've noticed that ServiceProvider is consuming much more battery that I have ever noticed before. Can ...
1
vote
0answers
123 views

How can I troubleshoot what is causing 'Android OS' to eat up lots of battery?

Are there steps I can take to rule things out eventually leading to a root cause? I am currently using the latest Dirty Unicorn ROM on a Nexus 5. For the same of argument, consider the case where ...
1
vote
5answers
157 views

App continues to consume battery long after its closed

I use tunein radio app in the morning. After my use, I close it via exit button, and don't use it for rest of the day. But hours after the use, I have observed it draining over 10% of my battery. I ...
0
votes
0answers
32 views

Running an Android phone as a pure phone - disabling the computer part

This question is not about pre-installed apps but more about apps which are part of Android. What are all the apps (which come in the factory condition) which I can disable if I am planning to use an ...
7
votes
3answers
6k views

How can I take a photo when battery <20%?

How can I take photo when battery level is less than 20%? My Samsung Galaxy S always says "battery low" and then closes the camera application when I try to. Is there a way to get around this? Or is ...
1
vote
3answers
2k views

Does USB tethering degrade droid batteries?

I want to know if tethering with my Xperia Neo V via USB will affect the battery capacity in any negative manner other than the usual.
0
votes
0answers
23 views

Does charging my Nexus 4 with high voltage charger can cause battery damage? [duplicate]

I'm charging my Nexus 4 with an AC wall charger with 1A voltage. I want to connect my 2.0A charger but I have been told this may cause battery problems. Is there any truth to that or is it safe to ...
0
votes
1answer
50 views

How to list apps, which have a permission to access the camera?

I am experiencing the problem with the mm-qcamera-daemon on a Nexus 5 with 4.4.4, as described in this question. I would like to know if there is a way to see which apps have a permission to access ...
1
vote
1answer
101 views

How to get rid of “Battery not charging dialog”?

I have a Sony Xperia ZR phone with Kitkat 4.4.2 and when I watch HD movies on non-MHL TV connected to the phone using a HDMI-miniUSB cable with external power source auxiliary cable, I often see a ...