Questions tagged [battery]

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

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0answers
333 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 ...
4
votes
1answer
119 views

Can I buy the Samsung official extended battery for the UK Galaxy Nexus?

Samsung have released an extended battery for the US Galaxy Nexus. I know the US and EU versions have a slightly different shape, so was wondering if this extended battery would fit my UK Galaxy ...
4
votes
1answer
598 views

Can't get past the pulsating boot screen after complete battery drain

My phone ran out of charge this morning after I made a couple of phone calls in bed. I was too lazy to get out of bed to plug it in. When I plugged it in later, and pushed the power button, the phone ...
3
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3answers
8k 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.
3
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3answers
5k views

Replace default battery status icon

Is there any way to replace the default battery status icon with percentage values to indicate battery status? For example as I saw in a screen shot
3
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1answer
2k views

Does syncing more Google accounts decrease a phone's battery life?

I recently got a Motorola Moto G (4.3 upgraded to 4.4.2), and I wasn't getting the battery life that my vendor claimed I would get (Through mixed usage: 2-3 hours of music, some web browsing, a lot of ...
3
votes
2answers
10k views

Why is Google Maps always running in the background?

I'm running on JB. The Google Maps application always seems to have 2 instances running in the background inspite of turning the GPS off. Is there a clean solution to prevent it from ever running in ...
3
votes
2answers
6k 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 ...
3
votes
1answer
865 views

What kind of hardware problems is a cheap Android phone likely to have?

For development and application purposes an organisation I am with is considering buying a cheap Android handset here in India (this is the handset). But what kind of problems can one anticipate in ...
3
votes
1answer
16k views

Show battery percentage on Nexus 7 (Jelly Bean)

Is there a (preferably built-in) way to show the remaining battery percentage in the status bar on the Nexus 7 (4.1.1)?
3
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1answer
19k views

Cell standby and Phone idle

On the battery use screen, what are the differences between Cell standby and Phone idle items?
3
votes
3answers
224 views

What is the fastest way to shutdown unrooted Android phone?

Sometimes I need to have my phone shut down as fast as possible. In older phones I was able to remove the battery, but after some "innovations" this feature is no longer present. Is there any better ...
3
votes
2answers
12k views

Bluetooth Battery Level on Android Marshmallow

I'm using LUXA2-Lavi O In-ear Wireless Earphone on my Nexus 6P with latest Android – Marshmallow and I cannot find where I can see battery level for my Bluetooth device, I am however able to see ...
3
votes
1answer
190 views

Battery level always 42%

I purchased a second hand nexus 5 to find out that the battery indicator is always showing 42% and never updates, regardless of the actual battery charge level. I tried replacing the battery with ...
3
votes
1answer
136 views

How do you open an EVO 3D to access the battery or SD card?

How do I open an EVO 3D? I have one right here and I tried googling it, but I dont have the manual and it isn't intuitive. I would like to view the microSD card and switch it out at will.
3
votes
1answer
69 views

Phone only works with busted battery

I have a Samsung Galaxy S3. A few days ago I noticed that the phone shut down on it's own, but when I plugged it to a charger it showed that the battery still had 20%. When I removed the battery I ...
3
votes
2answers
10k 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 ...
3
votes
1answer
2k views

Does wi-fi sleep policy “never” mean that my phone's battery will be drain a lot faster?

I have just decided to change my settings on the wi-fi, because it seems to give me a hard time regarding the fact that the some application are "unable to connect to server". However, I am worried ...
3
votes
1answer
161 views

Good source for genuine batteries

I'm looking to source a genuine original size battery for my HTC Desire. I'd rather not fork out the RRP of ~£35 but lots of the cheaper ones have bad reviews. Will anything much less than the RRP be ...
3
votes
2answers
10k views

My phone keeps slowing down and burning battery. How can I debug performance and cpu consumption? (DHD 2.2)

I know there are already a lot of threads about suggestions on how to improve performance and, strongly related, save battery life on your android. I also have tried most of the tools to diagnose ...
3
votes
1answer
4k 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. ...
3
votes
2answers
1k views

galaxy s3 not charging

I have a samsung galaxy s3. It is only 7 months old. Its battery is not getting charged. I have tried to reboot and take the battery out and put it again,it still doesnt get charged. The usb port is ...
3
votes
1answer
2k views

Tab stays on 216mhz instead of Deep Sleep

I am using Samsung Galaxy Tab 10.1 and I have installed Cpu SPY. I have noticed that when I leave the tab in the night, WiFi OFF, flight mode on, it does not go to Deep Sleep but stays on 216Mhz. I ...
3
votes
1answer
2k views

Is there any Android phone that can wake up for alarms even when the battery has died?

My old Nokia N95 used to wake up for alarms even when the battery had died. Is there any current Android smartphone that can do this?
3
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4answers
3k views

Relationship between CPU Usage and Battery Usage

I'm comparing the resource consumption of two Android Apps. App A uses accelerometer App B uses both accelerometer and gyroscope After reading these sensors, these apps does some processing on ...
3
votes
1answer
582 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 ...
3
votes
3answers
6k views

Can Telegram notifications be disabled?

Can you disable Telegram notifications somehow? I am seeing a huge battery consumption since last few weeks and after upgrading to Android 5.0.2. After one day of use battery app is reporting that ...
3
votes
5answers
20k views

Slow Charging Battery!

I have a Samsung galaxyS3 the battery has been charging really slow. It can take up yo 10 hours to charge 100%. I have tried every thing I can think of. I've tried a new charger, new battery, shut ...
3
votes
1answer
2k views

Frequently changing battery from mobile

Is is bad for a device to change battery frequently from mobile? I have one extra battery when my first battery got dry I removed it from mobile and put the second charged battery. Is it bad for the ...
3
votes
3answers
5k views

Nexus 10 Instantly Lost Battery Charge

I had my tablet at around 90% charge with nothing running on it and went to bed. I wake up in the morning to find it will not turn on. When I plugged it in the battery icon would appear showing it was ...
3
votes
1answer
1k views

Nexus 7 System error 'show low battery logo'

Today I finally got my Nexus 7 though the post and turned it on; I was just checking charge. I got an 'out of battery' UI message and the tablet then turned itself off. I plugged in the USB charger ...
3
votes
1answer
625 views

HTC G2 crashes, comes back on falsely saying battery level is 0%

Recently my G2 has started dying whenever I use it for more than 5 consecutive minutes. When I reboot it I need to plug into a power source or it will not reboot and it reports that I have 0% battery ...
3
votes
1answer
1k views

My Device Keeps Rebooting (LogCat attached)

For some reason, after I changed my device's battery. It just keeps rebooting and here's a LogCat of the error: E/JavaBinder( 1305): *** Uncaught remote exception! (Exceptions are not yet supported ...
3
votes
3answers
2k views

Battery usage problem in Android 2.3.6

Since the update to Gingerbread the battery of my phone has the half duration than with the 2.3.4 version. The "Battery Usage" in settings don't show anything abnormal. Anybody have the same problem?...
3
votes
1answer
2k views

Will fastboot not proceed with flashing if battery level is below certain percentage?

I'm trying to re-install Clockwork recovery mod (tl;dr: Android 2.3.1+ will reinstall stock recovery on every boot if it's not present). I had installed it successfully yesterday, but today it does ...
3
votes
2answers
592 views

3G Radio Always on When Screen On?

According to JuicePlotter, my HTC Evo's 3G radio is always on when the screen is on -- even when doing absolutely nothing. I tested this by turning the brightness down to 1 and opening the settings ...
3
votes
1answer
290 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
678 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
77 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
613 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
4k views

Google Music eating battery life while idle

Device: X9076 Find7, Nameless ROM 5.1 gMusic is hammering my device. Normal battery burn is about 4.8% per hour. Fine, I can live with that no problem. I've used GMAA since it became available but ...
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
660 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
313 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
690 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 ...

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