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

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2answers
21 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
2answers
35 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 ...
0
votes
1answer
38 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 ...
0
votes
0answers
18 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
30 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
30 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
34 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
14 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.
0
votes
0answers
12 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
votes
2answers
42 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
votes
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.
0
votes
1answer
29 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
votes
1answer
34 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 ...
0
votes
3answers
91 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 ...
-1
votes
1answer
95 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 ...
0
votes
1answer
108 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 ...
0
votes
0answers
194 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 ...
0
votes
0answers
26 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)
0
votes
1answer
38 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 ...
0
votes
3answers
40 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
votes
0answers
15 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
1answer
14 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? ...
0
votes
0answers
24 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
votes
2answers
63 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 ...
0
votes
1answer
97 views

How do I turn on battery percentage in Android L?

I haven't been able to find a menu option for this setting in the new Android-L developer preview.
1
vote
1answer
21 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 ...
0
votes
0answers
16 views

When my android shuts down due to depleted battery, is there any recommended cleanup?

My Galaxy S3 has stopped charging via USB cable. Its a hassle but not a terribly big deal - I bought 6 batteries and two battery chargers and I always have a few fully charged batteries in my pocket. ...
0
votes
1answer
67 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
votes
1answer
20 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
89 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
1
vote
1answer
32 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
votes
1answer
91 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 ...
0
votes
1answer
66 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?
0
votes
0answers
45 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 ...
0
votes
0answers
13 views

Should I charge new LG G2 for 6 before first use [duplicate]

I just bought a LG G2. The shopkeeper asked me to charge it for 6 hours. Within an hour it shows that it charged 100%. Should I continue the charging to complete 6 hours like old fashion. Or ...
0
votes
0answers
98 views

Wiko Iggy draining too battery and strange log in the Android Developer Tool

My girlfriend complain that her Wiko Iggy (stock jelly bean 4.2.2 and stock rom) drain too much battery. I usually develop android app with ADT and my galaxy nexus, but today I tried her mobile. My ...
1
vote
1answer
73 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 ...
0
votes
1answer
446 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
95 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 ...
0
votes
0answers
71 views

How much “Keep awake” is normal for Google Services?

How much, in general, of "Keep awake", and "Wakeups" is normal for Google Services? When should I be alerted that something is wrong? For example, would 2 hours of "Keep awake" be normal for ...
3
votes
0answers
104 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 ...
6
votes
4answers
154 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 ...
1
vote
0answers
49 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 ...
0
votes
1answer
264 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
30 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
vote
1answer
37 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).
3
votes
1answer
179 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: ...
0
votes
0answers
51 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
2answers
499 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 ...
13
votes
6answers
3k 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 ...