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

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0
votes
4answers
6k views

Samsung Galaxy S2 shuts off when plugged in: screen goes black then a grey empty battery appears

Samsung Galaxy S2 shuts off when plugged in. The screen goes black then a grey empty battery appears for a second then disappears. This "flashes" several times in about 4-5 second intervals. I can not ...
0
votes
2answers
21 views

My tablet is not turning on

I have a tablet not two years old, a few days ago it was left in a hot truck for about two days. Now it won't go past "fast boot menu". I have tried everything, I even tried charging it and the ...
5
votes
1answer
1k 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, ...
-2
votes
1answer
42 views

Lost Android's OS

I bought a Moto G (1st gen). It was upgrading and had around 1% battery and was charging, but simultaneously I unplugged the charger and the mobile turned off and now it's not turning on. It's not ...
5
votes
2answers
171 views

Bought a new battery, do I need to calibrate it?

My original battery is bloated and is dying quickly after a full charge so I now bought a replacement. Do I need to calibrate this new battery using a calibration app?
-1
votes
0answers
20 views

Do i still need 8 hours charging for first time charging? [duplicate]

In the past, for new phone I was told to charge it for 8 hours for first time charging. Do I need to still do it on recent generation of Android phone?
3
votes
2answers
44 views

How can I tell if I need to replace my battery?

I have a refurbished Galaxy S3. Sometimes it charges to 100% while powered off, but reports 51% as soon as I start it up. Lately, it goes down to 50% or lower even right after charging. I haven't ...
0
votes
0answers
169 views

Bizarre new battery behavior on Samsung Galaxy S3

After my old battery puffed up, it was time to buy a new one for my Galaxy S3 (GT-I9300) on stock ROM. After I got my new battery, I put it in and turned on the phone as I had some urgent messages to ...
0
votes
1answer
120 views

Power Android phone with portable battery charger and internal battery removed

Is it possible to power an Android phone (e.g. Samsung Galaxy S II) with its internal battery removed, using a portable battery charger? This question is about phone with internal battery that is ...
1
vote
0answers
15 views

alcatel onetouch FierceXL battery is draining too fast

I've only had my onetouch for 3 weeks now and all of a sudden the battery started draining rapidly, even when I plug it into the charger, and charging very slowly. If i use the phone at all when its ...
1
vote
1answer
145 views

Powering Samsung J7 using an external DC power supply

I would like to turn on Samsung J7 using an external power supply. The problem is that it uses 4 pin (+,*,-,*) to connect to its battery. The first pin is the positive and the third one is the ...
1
vote
1answer
58 views

NFC battery draining through constant use

Does putting a device that constantly checks/uses NFC affect/drain the battery? One example is Dimple IO which puts NFC buttons on the back of your phone.
0
votes
2answers
3k views

Battery drains very quickly on Samsung Galaxy S5

I have purchased a Samsung Galaxy S5 from the store. I open it and I begin by charging it for the first time, but without turning it on. The battery was 61%, so I waited until 100%. After that, I ...
-1
votes
1answer
38 views

Automatically enable/disable data mobile

Mobile data have enabled all the time drastically reduces the battery, is there any way to automatically turn on mobile data for 5min and then turn off this each (~)1 hour?
0
votes
1answer
5k views

Why the battery need to be loaded before to root?

I read in some tutoriel that for the root to be working, battery needed to be loaded around 70 at at least. Why is it so? Does it endanger the phone, or it just prevent the root to be working for ...
23
votes
7answers
3k views

Is power consumed from battery to run the phone when charging?

I want to download torrents while keeping the device plugged to charge. My device is made by Samsung. Is the power consumed from charger, or battery, to power the device when charging? Will my ...
5
votes
3answers
142 views

Why does my phone automatically power off when there is still 2% battery?

My Moto X Play on Android 6.0 would automatically power off when the battery displays 2% remaining. When I try to turn it back on, I would get a "low battery" symbol, which means my phone didn't ...
19
votes
4answers
9k views

Why my phone battery has four terminal? what is the use of the fourth?

I have a LG Optimus One (P500). For sometime I am wondering why my phone's battery has four terminals. I am aware that two terminals are for the positive and negative points and the the third connects ...
0
votes
2answers
887 views

How to connect Samsung J7 via USB but disable charging?

I would like to know if is it possible to connect my smartphone to a pc via USB without charging it? It would be very useful to be able to disable charging (but still allow USB tethering, ADB ...
2
votes
2answers
171 views

Why Google play services not included in Doze mode

I'm using Nexus 5 and 6P, Android 6 having a feature called "Battery optimization mode" or Doze mode (in short). It is allowing apps not to run, if they aren't used to avoid battery consumption. ...
3
votes
0answers
38 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 ...
1
vote
1answer
99 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.
1
vote
1answer
2k views

Is there a battery cycle counter app?

I have an HTC One M7 (4.4.2), and the battery is starting to deteriorate. It may be that I have some misbehaving apps, but I'd be curious to find out the number of charge cycles my device has used ...
0
votes
2answers
98 views

Can't charge/power on Nook HD+

The device won't power on. The screen and status light show no indication of activity when pressing or holding the power button (or any button / pairwise combination of buttons for that matter). The ...
11
votes
2answers
18k views

How does fast-charge work?

How does Fast Charge work? Does it actually charge your device faster, and if so, Is there a downside to using it?
0
votes
1answer
4k 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 ...
7
votes
1answer
400 views

Battery Stats Are Vastly Incorrect

After updating to 6.0.1 (MMB29K) from 6.0.0 (MRA58R) I have come to face a very odd and never seen before issue. My battery stats are wildly wrong. My stats show 4k% or higher and no battery stat ...
20
votes
4answers
31k views

How can I find app name by UID?

In "battery history" I have found that the app with UID 10058 is using a lot of battery. How can I find the name of the app with UID equal to 10058?
4
votes
3answers
294 views

What is the standard voltage and current levels for an android battery?

I am using Micromax Canvas Nitro A310; recently, I bought a new USB cable and it seems its not doing the job as required. My phone is not getting charged as it was before. Either it takes too long ...
1
vote
2answers
45 views

What should I do after installing a new battery?

I'm going to take the plunge to take apart my One (M8) to replace it's battery tomorrow and I was wondering what I should do to increase its battery life right off the bat. Should I charge it to full ...
1
vote
1answer
4k 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
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 ...
1
vote
0answers
35 views

Still gpsd drains battery on galaxy

There are a lot of questions about gpsd drains the battery on Samsung Galaxy noteIII. Most of them, including the official gpsd page, says that it is actually another application which uses gpsd and ...
0
votes
1answer
64 views

How to control battery usage by display in Xiaomi

I am using a Xiaomi redmi 1s phone which is of battery capacity 2050mAh. Most of the time when I checked the battery status, the screen uses about 55% to 70% of battery. Its display is of 720p. How ...
3
votes
0answers
352 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 ...
3
votes
2answers
458 views

How to fix a sudden increase in battery drain?

My Moto G phone (3rd gen; Android 6.0) used to charge rapidly and last over a day. I upgraded it from Lollipop to Marshmallow in mid-February and it still performed well. However, for the past 3 weeks ...
1
vote
3answers
99 views

Does my battery seriously have a problem or do I have a virus?

This notification keeps popping up on my phone and I don't know if it's real or not, it reads: "Battery has been infected by 6 serious problem! Install DU Battery and all problems will be wiped out." ...
0
votes
1answer
80 views

How to charge a newly bought Nexus 5X(lithium polymer)? [duplicate]

I just bought a new Nexus 5X, how should I first charge it? (It's a lithium polymer battery) I plugged it in the charger and the phone turned on. Phone almost had a full charge already though (out of ...
0
votes
1answer
54 views

Will charging a phone with a different USB *cable* affect the battery life?

I recently realized that I've been using the wrong USB cable to charge my Moto X Play(2015) for probably a couple weeks. The phone is specifically designed to charge very quickly with its' default ...
15
votes
5answers
3k views

How to choose micro USB cable for my device?

The plug sure looks like any old micro USB plug. Will another cable (like the one from my digital camera) work to charge the battery, or do I need one specifically designed for my phone (incredible)
1
vote
1answer
4k views

How to calibrate a new Nexus 5 battery that's higher capacity than original?

Just got a KBTEL battery that's 3800 mAh compared to the original 2300 mAh nexus battery. I charged it dead overnight, and now its been running for more than 7 hours and the capacity shows below 5% ...
1
vote
1answer
959 views

will gaming destroy my phone battery?

I think games probably destroyed my Note 2 battery. I often play games for hours straight while charging. Last Sunday it was dead with horrible heat. Then I borrowed friend's mpj backup battery, ...
15
votes
5answers
10k views

How RAM usage effects battery drain?

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
0answers
36 views

Where is the “Process Stats” screen in Marshmallow?

In earlier versions of Android, there was a screen called "Process Stats" inside the "Developer options". But it seems to be missing on Android Marshmallow. Does anyone know if its been moved or ...
0
votes
2answers
288 views

Infamous Marshmallow WiFi battery drain

Yes, the infamous battery drain bug. I've tried every fix in the book and I can't solve the problem. I've got a Nexus 4 with Chroma (1/18/2016 build) and Hell's core(3.4.0-hC-b87-M) (Marshmallow). I ...
1
vote
0answers
37 views

Galaxy S6 Battery Drop

I have a Samsung Galaxy S6, Stock ROM, running Android 5.1.1. Last night, as I was browsing on my phone before I fell asleep, my battery dropped from 19% to 15% in an instant, engaging power save ...
0
votes
1answer
92 views

My Redmi 2 Prime's battery usage is inconsistent after OS reinstalls

Recently after I updated my phone to MIUI7 the battery increased from 9 hours internet browsing backup to 10 hours and 4 minutes for Internet Browsing backup. But after I tried to roll back the OS to ...
2
votes
1answer
16k 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% ...
4
votes
3answers
35k views

“Charging paused. Battery temperature too high” while connected to car charger

I have a Galaxy S2 with ICS. When I use it in my car, while it is charging from a car charger, I occasionally get this popup: "Charging paused. Battery temperature too high" Also Waze is running ...
7
votes
5answers
473 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 ...