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

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0
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1answer
49 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
10 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
12 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
24k 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
28 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
2k 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
110 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
21 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
21 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
14 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
63 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
81 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
20 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 ...
0
votes
0answers
28 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 ...
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 ...
7
votes
3answers
5k 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 ...
3
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
2answers
1k 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
107 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 ...
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
1answer
860 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
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
38 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
47 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 ...
0
votes
1answer
24 views

spike in battery charge

Today when I was charging my Redmi 1s mobile I restarted the mobile. Then I saw that there was a sudden increase in the charge of the battery by 80%. What could have caused this?
0
votes
1answer
69 views

Exchange service polls every minute and drains the battery

Two days ago my Sony Xperia J phone's battery began to be drained very quickly. It seems, the Exchange service has gone mad (it uses 57% of the battery time). It polls constantly, I get a new mail ...
4
votes
1answer
845 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
2answers
49 views

Will launcher dry the battery quickly?

I like to install doldol launcher will it dry battery quickly? or maintain battery backup normal like default launcher?
180
votes
6answers
35k 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 ...
1
vote
2answers
439 views

How to prevent Nexus 7 of charging the battery every time when connected to a USB?

Hello fellow Android enthusasts, I recently bought a Nexus7 that I want to use for development. The thing is, every time I connect it to my USB, in order to test some apps on it, it starts charging. ...
1
vote
1answer
793 views

Battery getting charged with ultra speed and continuous at 1%charge for more than 9 hrs

My neo v battery getting charged with in ten min from 0 to 100 percentage( Exponential growth graph ) with ultra speed and getting discharged to 1%( it also give alert showing last 1% left, keep ...
0
votes
2answers
829 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
1answer
195 views

Nexus 7 refuses to boot unless plugged into outlet

I've looked around the internet for this problem ad/or solution for hours and have found absolutely nothing on this problem. My tablet is brand new, straight from the box. When i have it plugged in ...
26
votes
7answers
26k 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.
0
votes
2answers
44 views

Battery Status problem

I recently updated my Note 8.0 Wifi from 4.1.2 to android 4.4.2, and shortly after that rooted it (But kept the stock 4.4.2, NO custom ROMs or anything...). Of course, as I knew, the battery ...
0
votes
1answer
136 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
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 ...
0
votes
2answers
49 views

How to stop an app from draining the battery without uninstalling that app?

I know how to identify which apps are using the battery, but I'm not sure what to do about it. There are some apps that I occasionally use but I don't want them draining the battery while I'm out and ...
6
votes
2answers
6k views

How does the App “Battery Repair” work?

I just found this App (Battery Repair) on the Google Play Store, my question is how can it make my battery last longer. What optimazions are they doing? Has anyone tested this tool, does it work?
3
votes
3answers
6k views

how does battery calibration work?

There are several posts on how to calibrate android batteries but none describe its working. How is it that the system can determine at what voltage the battery is considered to be charged (100% or ...
5
votes
2answers
342 views

Battery meter went crazy and now stays at 0%

I have a Samsung Galaxy Discover that worked fairly well until the last week or so. I ran the device down down to 0% - at which point the device shut off. I performed a full recharge and then ...
0
votes
1answer
54 views

Should I accept 2,5 year old Samsung Galaxy replacement battery?

I've just bought a "brand new" replacement battery for my Galaxy Nexus phone. When on-line store's package arrived, I was more than surprised (actually, shocked!) to find out, that battery's ...
5
votes
5answers
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
19 views

LG Nexus 4 E960 red light of death [duplicate]

I brought my LG Nexus 4 E960 from India when I came to study here in the US. The charger didn't work well (it charged on the USB mode when I plugged it with the help of an adapter), so I bought a new ...
0
votes
0answers
54 views

Battery voltage

I've just bought a replacement battery for my phone, it's exactly the same 1200 mAh 3.7v however when I look at apps showing battery info they say the battery voltage is 4mv. So what does this mean? ...
0
votes
1answer
54 views

Cell standby use about 35-50% of total battery? [duplicate]

I have Micromax canvas 2.2 a114. I am in strong network zone and use 2g internet all time and time without network is 0%. So why it is consuming more battery. I also never in weak signal.??
0
votes
1answer
41 views

Discharge while in airplane mode (with image)

Something weird happened today morning. I charged my phone yesterday night and gone to sleep after 2 hours or so. When I woke up, my phone was at %30 charge and I was pretty confused. Because before ...
0
votes
0answers
21 views

Why does Battery Doctor say my battery is 50% charged while Android says 23%?

Battery Doctor says my battery is 50% charged while Android says 23%: Is there any reason why? I use a 4200mah Extended Battery on Samsung Galaxy SIII with Android 4.1.2.
-1
votes
2answers
53 views

what will happen if i leave my smartphone(samsung gt8150) with an already ruined battery a whole day plugged into the computer?

I use my smartphone for tethering and i have a ruined battery which will keep the device on for not more than 1 minute but can be plugged in to the computer or charger.Is it ok to leave the device for ...