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

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57 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.
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0answers
26 views

BatteryManager inner workings

I recently installed linux on a Sony Xperia Neo (on SD), but the Android kernel remains under the hood. I've only changed kernel initrd to boot off the SD's Debian. The real question is: ¿What is ...
-1
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2answers
173 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 ...
0
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0answers
11 views

How to disable phone from charging without rooting [duplicate]

I have recently bought a galaxy grand 2 and I want to disable it from charging when it connects from usb. I want to have option whether to allow charge or not.
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1answer
432 views

Samsung duos remove and re-insert battery makes battery life sudden drop

I have a samsung duos i9082 without root. the battery life drop 10% - 50% when remove and reinsert the battery. So my question is. is this a battery problem or devices or software? Does replace a ...
0
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1answer
671 views

Used (probably) inappropriate charger, touchscreen went crazy, permanent damage? [duplicate]

I used a plug with USB output than may have been inappropriate (output DC5V +/- 0.20V DC500mA +/-30mA). While it was plugged in, the touchscreen stopped working properly (touching one part of the ...
2
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8answers
6k 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 ...
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1answer
9k views

Emergency battery backup code

Is there any emergency battery backup code? In Nokia we have *3370#. I don't know this code will work in all devices, But in some devices it will backup the battery up to 50% Is there anything like in ...
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1answer
4k 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 ...
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0answers
938 views

Is there a Battery Cycle Counter App?

I have an HTC One M7 (4.4.2) and battery life is starting deteriorate. It maybe that I have some misbehaving apps, but I'd be curious to find out the number of charge cycles my device has used since ...
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0answers
183 views

My nexus 4 is awake 79% of the time… help?

So it's been some days my phone is keeping awake 79% of time. Below is the WLD screenshot. Screenshot of "Wakelock Detector" (click image for larger variant)
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2answers
616 views

Galaxy Tab 3 won't boot - dead battery?

I'm kind of disappointed, this morning I wanted to start my GT3 but I get this logo instead (sorry for the poor quality) : I've try AB testing with my Nexus 5 battery loader, both works on my ...
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3answers
134 views

Can GSM operator affect battery life?

I am using samsumg galaxy s3 mini. Couple of days ago, I changed the GSM operator I am using which has more signal strength and internet speed than old one. But I realized my phone's battery life ...
2
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0answers
31 views

How to prevent S3 from turning on when charging

I'm trying to charge a new battery with my phone turned off. As soon as I plug the phone in to the wall charger, the screen turns on and the phone tries to immediately boot instead of staying on the ...
0
votes
2answers
39 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? ...
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0answers
87 views

Faulty battery status indication

I have a Huawei Honor U8860 with Android ICS. I use two Mugen Power batteries. I always use one battery until it's empty, then charge it to full while using the other battery. Recently Android battery ...
0
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2answers
150 views

S2 randomly restarting / draining the battery

For the past month my S2, SPH-D710, Android 4.1.2, will randomly restart throughout the day. I took the battery out for awhile and that didn't change anything. Sometimes it happens when I'm looking ...
3
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2answers
20k views

How do I turn on battery percentage in Android Lollipop?

I haven't been able to find a menu option for this setting in Android Lollipop (previously known as Android-L).
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1answer
57 views

How to measure the charge left in a dying battery?

This question is not relative to a specific phone model, even though I will cite my P1000. My P1000 is 3 years old, and it is often suddenly turning off (no shutdown sequence, just goes dead) out of ...
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1answer
857 views

Why does Battery doctor interfere with the Google play store to update /download the Application

I have Battery Doctor 4.9.3 installed on my Samsung Galaxy trend device with Android jellybean 4.1.2. The problem with this app is that every time I try to update an app it starts initially and ...
0
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1answer
49 views

Android: Default Battery Percentage Level for individual services to switch off

We all know Android OS switches off services one by one when the battery reaches critical level. But is there any fixed battery level to cut down individual services. For example, Bluetooth will be ...
0
votes
1answer
335 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
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1answer
42 views

Galaxy S4 Turning on problem

My lock button was having some problems such as when I clicked it it wouldn't do anything or it would glitch and hold down, so I restarted my phone now nothing is happening, I can't get anything on ...
0
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1answer
233 views

Battery dropping from 90% to 0%

I've had the same device for quite some years now, and played a lot with it changing ROMs a few times. Recently I've been experiencing sudden drops in battery charge, here's a screenshot: Battery ...
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1answer
252 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?
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1answer
169 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 ...
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1answer
231 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 ...
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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 ...
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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
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0answers
200 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
273 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 ...
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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
155 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 ...
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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
61 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 ...
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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
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1answer
1k 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: ...
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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
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5answers
7k 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
49 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 ...
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2answers
200 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
18k 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
169 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
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2answers
794 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, ...
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0answers
28 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 ...
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2answers
354 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 ...
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1answer
110 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
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0answers
43 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
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1answer
339 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
1k 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 ...