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

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1answer
271 views

My Samsung Galaxy S 2 indicates it is charging but doesn't

My Samsung Galaxy S 2 indicates charging but is not adding charge to the battery. I have changed my charger many times but the problem continues. What's the solution?
1
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1answer
194 views

Battery drain RATE alert?

i've used multiple generations of Nexus devices, some more stable some less. It seems like there is always some combination of hardware, system image and installed app set that creates a situation ...
1
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1answer
263 views

Samsung Galaxy 3 is HOT

Sometimes after using my phone for a bit, it gets super hot where the battery is. When that happens, I close all programs and don't use it for awhile; it eventually cools down. This also happens a ...
1
vote
1answer
3k 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 ...
1
vote
2answers
1k views

Resettng an android device with non-removable battery

I'm planning to buy my first android phone which has non-removable battery. But in case the phone hangs what to do ? As in general case we remove the battery from the device and plug it in after a few ...
3
votes
0answers
211 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 ...
7
votes
4answers
294 views

How do I smite this unknown vampire process that is sucking the blood out of my battery?

I have a Samsung Galaxy S2 that I upgraded to 4.4 a couple of days ago. Since upgrading, my battery longevity has dropped a crazy amount. Just this morning, it took about four hours to go from full ...
0
votes
1answer
2k views

Cannot charge due to low battery temperature on Lenovo P780

My Lenovo P780 won't charge because the battery warning always pop up & says that charging is paused due battery's temperature is too low. I have checked the battery's temperature & it is ...
2
votes
1answer
172 views

Is slow charging bad for the battery?

I know that charging the battery too fast can overheat the battery and shorten battery life. But is charging it slowly, e.g. from a USB 2.0 cable plugged to a laptop, also harmful for the battery? I ...
1
vote
1answer
2k views

Nexus 7: micro usb port broken

I have a 2012 nexus 7, its a beast of a device. But unfortunately the usb port of the device is broken. Is there any way I can charge the batteries my beloved nexus? I have opened it up, and removed ...
0
votes
1answer
74 views

Poor Performance at Low Battery

I'm having an issue where my phone gets sluggish and non-responsive when the battery level gets to around 35% or less. Apps will freeze, it will take the keyboard a long time to appear, and the ...
1
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1answer
44 views

Will disabling LTE extend my battery life even if I'm not using it?

I was just wondering, if disabling LTE will improve my battery life even if I'm never using it (there's no LTE in my country).
5
votes
1answer
2k views

Battery indicator increase when not charging

Basically, two hours ago my battery level is at 8%, then an hour ago, it was at 9%. Now it's at 10%. Why is it going up even though it is not plugged in? Would I need to calibrate my battery? Note: ...
1
vote
2answers
3k 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 ...
14
votes
5answers
8k views

Can using too much RAM drain battery?

I'm really confused about Android memory management. I just read here that killing apps by swiping from recent list or using task killers won't save your battery but drain more because this cause the ...
0
votes
1answer
50 views

Charging/PC connection issues

I have tab 2 7.0 that will only charge when switched off and even then that's only sometimes, other times I get the battery boot loop. When device is on it says not charging in battery settings and ...
1
vote
2answers
209 views

Does the phone consume less power when 3G disabled Vs 3G & WiFi Enabled?

I found couple of questions about it but they are two year old. So Is it better to disable (in the top panel) 3G when I have an active WiFi connection and disable WiFi (in the top panel) when I ...
2
votes
5answers
20k 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
2answers
174 views

samsung s3 battery

When my Samsung S3 battery gets down to 20-15%, the phone becomes unusable. The signal goes completely and the phone screen starts flickering. As soon as that starts, I watch the battery go down from ...
0
votes
2answers
858 views

Galaxy S2, 3 year old. Battery went from 55% to 13% in 5 minutes, then phone started restarting

this morning going to work I had my battery at 55% was listening to music and chatting in skype. All of the sudden skype started lagging really hard and then phone restarted. When it turned back on, ...
0
votes
0answers
29 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 ...
1
vote
2answers
376 views

Emulate Full Battery Charge

Now before you guys disvote this question, let me explain. I've been messing with lithium polymer batteries for 8 years (I work in a shop repairing electronics) and I have studied the behavior of ...
0
votes
1answer
113 views

Is less than 2 hours of battery life normal for Galaxy S2 with

Screen darker than | 5 times darker than normally possible thanks to Screen Filter app, removed more than 70 system apps (I have less than 40 now) with the rest except absolutely essential being ...
0
votes
0answers
44 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
1answer
353 views

HTC One is not charging

I have HTC One since few months. It worked fine, this is great device in my opinion. Today my battery ran out of energy. I plug in the charger, and there is no reaction over 30 minutes. It has ...
2
votes
4answers
2k views

Screen uses 99% of battery

I have Galaxy Ace S5830. I tried using many different Jelly Bean and KitKat roms, and with each one (clean installs, without additional apss) my battery behaves weird. When screen is turned on, even ...
1
vote
1answer
270 views

KitKat issue: device turns on when plugged in

Yesterday I updated my Samsung S4 to 4.4.2 (I9500UBUFNA2 - Kernel 3.4.5-742022 18-Feb-2014) via Kies 3. If device is turned off then I plug in, picture of measuring battery image appears for 2 seconds ...
3
votes
1answer
683 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 ...
1
vote
3answers
3k views

Nexus 5 whole battery drained in a single night

I charged my phone to 100% before going to sleep. I used it for only few minutes and found out my phone was off in the morning because all the battery was drained. I charged it and saw battery stat ...
2
votes
2answers
473 views

Does 'Easy Battery Saver' work?

I ran some tests in my Moto G and it was quite disappointing. The first hour was dedicated to measure the performance in 'Intelligent Power Saving Mode', followed by an hour of the app uninstalled. ...
2
votes
1answer
2k views

Possible to charge one phone off another?

What's stopping the ability of charging a cell phone from another cell phone? If I were to create a crossover/patch USB cable and connect it between two phones or tablets, would there by any way to ...
0
votes
3answers
427 views

15 Min my battery goes to 97% to 17%

Yesterday I was watching a video on my andorid GTP3-100, and my batter was at 97% after 15 min I looked at my battery it had gone to 17%, and it was draining battery fast and after 5 min its went to ...
1
vote
0answers
357 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 ...
0
votes
2answers
312 views

Moto X Battery Question

I'm new to android and the Moto X. (iPhone 4s previously. don't judge.) I purchased my Moto X a couple days ago (2/15/14) and overall I'm very happy. The battery life has me concerned though. ...
1
vote
1answer
335 views

Unwanted processes

I bought a Sony Xperia SP phone 3 days ago. Nice, fast, everything is seems to be all right, except for 2 things: Last night, I killed all the tasks, set the stamina mode, and charged it to 100%. I ...
4
votes
1answer
458 views

Don't charge to 100% when always-on wall-plugged-in

I want to use a Google Nexus phone for an always-on wall-plugged-in WiFi tethering access station. It occurred to me that if I just do it like this, then I'm risking ruining the battery within a ...
3
votes
5answers
16k 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
0answers
365 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. ...
3
votes
3answers
11k 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 ...
2
votes
1answer
11k 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
1answer
745 views

Is there anything similar to APNS on Android?

Is there anything similar to APNS (Apple Push Notification Service) on Android? (APNS uses a single TCP connection between an iOS device and an Apple-controlled server, which issues push ...
0
votes
1answer
40 views

What are the hardware requirements for Battery monitoring?

I looked at the hardware compatibility list, but there is no mention for a requirement of a battery monitoring functionality in the hardware. But, all phones display the battery level with the ...
0
votes
1answer
403 views

How can I increase my samsung galaxy fit's battery life?

I'm using Samsung Galaxy Fit(S5670) and running official 2.3.6 version. My battery's capacity is 1350mAh. Can I increase this capacity to 1500mAh or 2000mAh?
1
vote
0answers
49 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
1answer
178 views

Make the sleep timer on a tablet dependent on whether it's being charged or not

Is there a way to set the sleep mode timer depending on whether the tablet is being charged or not? I normally have my Android tablet (Xoro Pad 9718, Android version 4.1.1) next to my computer on ...
15
votes
1answer
750 views

How do I fully charge my emulator battery?

It bothers me to see half charged battery. Anyone knows how I can fully charge it?
0
votes
1answer
685 views

Differences in battery information and phones printed labels

I just run across this today: The value for battery current capacity printed on the battery of some Samsung Android devices are different than the numbers printed on the label on the phone (underneath ...
1
vote
1answer
2k views

Is there a TRUE brightness controlling app?

I need to set my brightness below what Android allows me, and thus I'm testing a bunch of "dimming" apps. What they all have in common though is that they put on a filter over other apps so while they ...
1
vote
1answer
420 views

How to solve the short battery life with galaxy s4?

I bought Galaxy S4 in just half year. However I found some wrong with the bettery, my phone shutdown automatically recently with over 20% battery. I can only use the phone for two hours after my phone ...
0
votes
1answer
185 views

Nexus S battery drains after updating to 4.2.2 even if turned off

My Google Nexus S battery drains after updating from 2.3.7 to 4.2.2, even if it is turned off. One night I shut it off at 70% charge, and when I turned it on in the morning it was at 9 or 10%. I ...