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

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5
votes
1answer
220 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 ...
4
votes
1answer
690 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, ...
3
votes
1answer
1k 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 ...
4
votes
0answers
557 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 ...
3
votes
0answers
282 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
487 views

Nexus7 Stuck in Reboot Following Full Discharge

I am experiencing the same symptoms as described in the following: " Nexus 7 is stuck in reboot loop after full discharge " My Nexus 7 is full discharged. I have it connected to Factory AC-to-USB ...
3
votes
0answers
276 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 ...
2
votes
0answers
107 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 times. ...
2
votes
0answers
158 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
164 views

Prevent complete charging?

I'm looking for a way to prevent my phone from completely charging every time it is connected to my computer. I want to reduce the battery's capacity loss, as it is non-replaceable, and it seems to me ...
1
vote
0answers
43 views

Does GPS cause the phone to get hot?

I am using a Moto G device and I have noticed that when I turn on applications that rely on the GPS Waze or Mapquest, the device gets hot. As in hot to touch. I was previously using a Samsung Galaxy ...
1
vote
0answers
23 views

Phone turns off at random

I have a note 1 N7000, and each time the screen began flickering and after that it shut down. This got worse after flashing a cyanogenmod rom. By plugging in the charger the battery seemed empty, but ...
1
vote
0answers
156 views

Samsung Galaxy Note 2 wont charge while on and battery is discharging

So after reformatting my phone, resetting to defaults, nothing has seem to work. I even took it to my cell provider to see the tech, they didn't do anything. Whats weird is that it had 20% and so i ...
1
vote
0answers
30 views

Samsung tab charging

Tab gt7500 battery went flat while downloading and now does not want to charge with supplied charger or via computer
1
vote
0answers
116 views

Strange Behaviour of HTC One X battery

maybe someone recognizes my problem or has had it himself. My problem is as follows: Normally I turn my phone of over night. Battery Monday evening 50%, Tuesday morning 23% Battery Tuesday evening ...
1
vote
0answers
63 views

Android battery mucking up

I have an unusual problem with my galaxy s4 battery. Screenshot (click for larger variant) Sometimes when the battery level is 85% it can shut off and when I turn it back on it can go straight to ...
1
vote
0answers
43 views

Why battery “sags” on my device and how to fix/workaround it?

Sometimes my device shows "No SIM card" status and "0%" battery and soon powers off (even if I manage to quicky connect it to USB). After powering back on it works more or less as expected. Why ...
1
vote
0answers
82 views

Exotic case of Galaxy Nexus not booting

Symptoms : Put battery into Galaxy Nexus (tried with two different including a brand new one) Plug cord to USB host or charger Large battery charge indicator icon appears in the middle of the screen ...
1
vote
0answers
405 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 ...
1
vote
0answers
181 views

Phone interrupted during first charge, battery damage?

Got my new Sony Xperia Go and after draining its initial power, plugged it in to charge. Red light was on, but the battery icon did not show that it was busy charging. So I unplugged it and ...
1
vote
0answers
837 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?
1
vote
0answers
337 views

Inconsistent battery status and poor battery performance after ICS update on HTC Sensation 4G

Recently I updated my HTC Sensation 4G from GB to ICS via official update. After ICS update, I am facing many types of problems in my phone: Battery drain - 100 to 0% within 2 hours while browsing ...
1
vote
0answers
976 views

Battery Problem in Samsung Galaxy Tab GT-P7510

I have a Galaxy Tab 10.1 (GT-P7510) with Android 3.2 and I have the following problem: I canĀ“t turn on the tablet. I tried all the different ways with the power button, pressing 5, 10 , 100 seconds, ...
0
votes
0answers
17 views

Android auto power up after getting minimum Charge

When my Samsung android phone is power off and battery is completely out of charge and after that connecting the device with charger it do not start automatically. Do anyone can give me a solution ...
0
votes
0answers
29 views

The Media process drains the battery frequently, or how to identify a process trying to use the Media?

From time to time I face with a strange issue on my Samsung Galaxy Nexus having the battery almost drained. If this happens, the battery status reports that the process called Media ...
0
votes
0answers
15 views

Is it possible to infer ambient temperature from battery temperature?

A few questions here and at Stack Overflow make battery temperature available for the inquiring minds: Get temperature of battery on Android How does Android obtain battery temperature Yet, I'm ...
0
votes
0answers
31 views

Something eating my battery

I have my Nexus 7 2013 few months. Few weeks ago, for some reason battery start draining - it was empty after one day or so. I reinstalled whole tablet, and after that everything went to normal. ...
0
votes
0answers
38 views

30% cpu usage when charger unpluged. When pluged in, cpu usage drops to 2%

I have checked by external debugger and it seems that "batteryservice:update start" runs 10 times per second. Other battery processes are running very often too, only with charger unpluged. It's brand ...
0
votes
0answers
58 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 ...
0
votes
0answers
204 views

MpDecision - cpu power consumption

I have a customize rom. With battery drain, about 3 times vannila/stock rom. with gapps, wifi off. proc/uptime show same wake time as stock/vannila for the same scenario possibilities of battery ...
0
votes
0answers
40 views

Severe battery drain by androidOS over multiple ROMs

I'm using xperia Sola. For the last 15 days i noticed that my battery was draining abnormally fast. When i view battery stats in settings the androidOS is always at the top with more than 90% battery ...
0
votes
0answers
34 views

How do I know which apps are actually using battery?

There is a Battery section within Settings on my Galaxy Nexus, which shows which apps are using the most battery. However, it would appear that not all apps are present. For example, my mail client ...
0
votes
0answers
214 views

Battery and recharging suggested practices on Galaxy Note 3

Can someone please verify that the note 3 uses a Lithium Ion Battery? Does using the Note3 - for example making a call - while charging negatively impact it? My old flip-phone would heat up if I ...
0
votes
0answers
30 views

How are Battery History logs generated

How are the Battery History logs generated in dumpstate? I know that battery history is printed in dumpstate by batterystats.java, but how does this file get the battery stats from kernel? Also, how ...
0
votes
0answers
782 views

Battery Trickle Charging, good or bad?

What are the side effects of using apps that trickle charge battery. App like "Battery Doctor". It charges around 30-50 (varies with device) mins after battery is fully charged, which results in a bit ...
0
votes
0answers
45 views

How do I decide what car charger I need to buy?

I am with Nexus 5 and finding it difficult to decide on what car charger or car dock with charger I need to buy. As there is no accessories from parent company (LG or Google) I not sure what charger ...
0
votes
0answers
56 views

How to disable/remove ALL cell functionality

I have a Kyocera Event (Virgin Mobile) running stock Android 4.0.4. This is only used as a media player for about 90 minutes ONE DAY per week. I am looking for a good way to extend battery life as ...
0
votes
0answers
113 views

USB connection issues with Nexus 4

I've installed some app from Google Play called "franco.Kernel updater", which had an option to enable "fast charging" (the app claims it provides a custom kernel that saves battery life). After I ...
0
votes
0answers
275 views

How do I stop “USB debugging” mode auto-enabling and default to just charging in android 4.2.2?

I have an HTC one, running Android 4.2.2 overlaid with HTC Sense 5. I am trying to plug it into my car stereo. All I want to do is play audio from spotify via my car stereo (which wasn't a problem ...
0
votes
0answers
239 views

What would cause a sudden spike in the battery charge level?

Today I spotted something this on the battery chart : graph of battery history showing a massive spike (click for larger variant) What is the reason of such erection ? Hardware problem ? Or maybe a ...
0
votes
0answers
27 views

SGS3 was hot while using it

My Samsung Galaxy S3 gets overheating easily but I don't know whether this problem is causing by the processor, battery, software or other part of the device. Then I troubleshooted the GS3 myself, and ...
0
votes
0answers
139 views

Battery Drains out Suddenly

So here is what happened! I was simply going though my phone (Canvas HD running Jellybean) when suddenly it hangs and then shuts down. I try booting it. It turns on but goes off again. I try it yet ...
0
votes
0answers
143 views

Will my phone power off in recovery mode when the battery level gets too low?

Due to a malfunctioning battery, I am unable to keep my phone powered on long enough to drain the battery. As soon as the phone boots, I get an error saying that the battery is at 0% charge and it ...
0
votes
0answers
266 views

Battery Status Indicator Error?

Okay so I have a very interesting story to tell.... Here is what happens... I charge my phone at night, wake up in the morning, pull it off the charger, about 9-10pm it drops to about 15%, which ...
0
votes
0answers
352 views

unable to charge Google Nexus I9250

I am unable to charge my phone most of the times. When I connect my phone to the USB cable which is in turn connected to the computer or charger, most of the times (about 90 percent), I am unable to ...
0
votes
0answers
82 views

My galaxy s3 won't switch on

My galaxy s3 automatically went off after the battery drained out completely. I tried to recharge the battery but was not possible through same phone. I used my friends' phone (Of the same make) to ...
0
votes
0answers
562 views

Why will my Samsung Galaxy Gio not turn on

My Samsung Galaxy Gio hasn't been working properly for a few days, and now it won't even turn on. I can get it to the recovery page, but it will not do anything after that. I was thinking that it ...
0
votes
0answers
905 views

Charging paused, battery temperature too low

I dropped my Samsung Galaxy S2 in water, and now when I plug it in I get a message that says: Charging paused, battery temperature too low Is there any way to fix this?
0
votes
0answers
252 views

Does the Nexus 4 battery drain faster if it has no SIM card inserted?

Does the Nexus 4 battery drain faster if it has no SIM card inserted?
0
votes
0answers
222 views

samsung galaxy s2 battery shuts phone down when plugging in charger

I have a Galaxy S2 and when I plug in the charger on one battery the phone shuts down and will not reboot. On battery #2 (exactly the same OEM) the phone remains usable on the charger. Dilemma that I ...