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Questions tagged [battery]

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

0
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3answers
3k views

Nexus 7 (2012) won't charge or start after a series of problems

A year or so ago, I bought an old Nexus 7 that was very slightly used (I took it off my girlfriend's hands). Everything worked fine, but I barely ever used it. Two days ago I broke it back out. I ...
1
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0answers
116 views

Why does my OnePlus One draw 60% more current if I turn off the screen AFTER plugging it in?

It's pretty simple: If I turn off the phone's screen and then connect the wall charger, the power supply draws ~6W from the wall, and this doesn't change if I keep waiting. If I connect the wall ...
-2
votes
1answer
364 views

Does it hurt battery life to not fully charge and disconnect?

Dears, I think the question is quite clear from the title: if I charge my device and let it charge not fully but say, 60% and disconnect, does that hurt battery life? If so, what are the ranges you ...
7
votes
1answer
1k views

Is battery consumption linear?

I am benchmarking an app using the batteryhistorian. The result is a chart where every percentile is a "tick". After I've measured the battery consumption and let the battery drain to half, I would ...
0
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2answers
215 views

How to find out which apps are draining the battery?

I'm not sure when it started, but my phone is draining its battery even when being charged. It's likely to be caused by some apps I installed recently. How to find out which apps are causing the ...
1
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1answer
188 views

Help me save battery, BBS dump included

I got fed up with my Android battery life and thought I should use it only when really required. Hence, I installed minimum number of apps. I have runtastic, runkeeper, gps status toolbox, ...
-1
votes
2answers
6k views

Is auto sync really killing my battery?

I have been digging the archives for eternity to find that Location Services and Auto-sync (assuming we ignored other factors such as Bluetooth etc -- because my focus is mainly about auto sync) are ...
0
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0answers
16 views

Is auto-sync really the biggest battery killer? [duplicate]

I have been digging the archives for eternity to find that Location Services and Auto-sync (assuming we ignored other factors such as Bluetooth etc -- because my focus is mainly about auto sync) are ...
0
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2answers
52 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 ...
4
votes
2answers
141 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 ...
-2
votes
1answer
74 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 ...
1
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0answers
2k 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
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1answer
112 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?
3
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0answers
525 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
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0answers
1k 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 ...
1
vote
1answer
1k 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.
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-...
1
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3answers
204 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."
1
vote
1answer
2k 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 ...
0
votes
1answer
3k 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 ...
2
votes
3answers
6k 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. ...
1
vote
0answers
420 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
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0answers
20 views

How to dim the screen on an Android phone without locking? [duplicate]

Given a phone with a password, the screen turns off and the phone locks by single pressing the power button, or if the sleep time-out is reached. The user then must enter the password to get access. ...
1
vote
1answer
5k views

Set Battery Saver Always On

On Android 6, the battery saver automatically turns on when the battery is low and off after charging. I would like it remain on all constantly without having to manually turn it back on. How can I do ...
5
votes
2answers
7k 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 ...
0
votes
1answer
242 views

Samsung Galaxy S3 LTE Bricked and not charging (gray battery)

Some time ago i had problem with my Samsung S3 LTE, namely, after some time the phone started to flash screen, lose signal and finally crash. The problem lasted about 2 months but I belittled it and ...
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1answer
88 views

What does the phone do when it runs out of battery but it has an alarm scheduled? [duplicate]

Does it power off completely or go into a deep sleep state?
0
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2answers
3k views

HTC One (M8) blinking red notification light

So after replacing the battery in my One (M8) with a new one from eBay, the notification light just blinks orange when charging. When swapping back to the battery before replacement, it, at least, ...
0
votes
1answer
1k views

Full Charge Notification

When my battery is fully charged I would like a Notification Sound. It used to make a certain tone.I went to my settings, and tried to find it there but it gave me no information to do it. I tried ...
0
votes
2answers
626 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 ...
8
votes
1answer
23k views

Fast Charging by Qualcomm 3.0- impact on battery?

I am thinking of buying HTC one A9 My only concern is with fast charging . I have read this thread How does fast charging work? and understood the downside is mainly on battery life. Accepted answer ...
2
votes
1answer
371 views

Marshmallow battery optimisation not working on Moto G

I recently got the Marshmallow update on my MotoG 2nd gen (2014). I was hoping that my battery will last longer if I enable battery optimisation. But I cant seem to enable it. I can go to the battery ...
3
votes
1answer
1k views

Android definition of charge cycle?

Battery life is measured in number of charge-discharge cycles. Charge Cycle wiki says Apple Inc. clarifies that a charge cycle means using all the battery's capacity, but not necessarily by full ...
1
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1answer
167 views

Nexus 6 Powered On Strangely

Earlier today, when trying to power on my Nexus 6, I had a strange thing happen. I normally power on my phone when it is still plugged in to the charger, and I tried doing that today, but after ...
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 ...
4
votes
3answers
6k 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 ...
1
vote
1answer
420 views

phone is stuck on welcome screen (samsung galaxy note 2) when using other battery

hi i have a samsung galaxy note 2 n7105 and i have 2 batteries. when i am using battery A, everything boots okay but when i use battery B it is stuck at the samsung logo and will not go on. sometimes ...
1
vote
1answer
1k views

galaxy s5 says battery temperature too high too low! [duplicate]

help me please. my galaxy s5 won't charge it says the battery temperature is too high or too low. i used to change my battery but when the new battery runs out of life and when i try to charge it, the ...
1
vote
2answers
418 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 ...
0
votes
1answer
216 views

Strange battery graph

A friend's Motorola Moto G (titan) on Android 5.0.2 (Stock) shows this really weird battery graph. Does anyone know what's going on here or how to fix it?
2
votes
1answer
82 views

Initial Charge Problems

I bought my Android last January and I forgot to charge it for 8 hours. What will be the effect on my Android and battery life? ( battery type is Lithium Polymer)
0
votes
1answer
404 views

Samsung Galaxy GT-P7510 won't charge

I have a Samsung Galaxy Tab GT-P7510/M32 32 GB. I can't get it to charge. I plugged charger in one time and showed the battery was empty and had a yellow triangle with exclamation point point in it. I ...
1
vote
2answers
185 views

How does Samsung's “quick charge” work?

How do the batteries work? Will those batteries have a shorter lifespan? Will the "quick charge quality" get worse over a period of time? And why aren't there other companies using this technology?
1
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1answer
2k 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
2answers
3k views

Xiaomi Redmi 2 Pro Battery Issues

I have a Redmi 2 Pro, and it works fine, except for some issues with the battery. If I charge it to 100% before I disconnect the charger and go to sleep, by the morning it may go down only to 98%, but ...
0
votes
1answer
938 views

Why Samsung Galaxy Ace GT-S5830i shows only a battery icon instead of booting?

I have a Samsung Galaxy Ace GT-S5830i smartphone I got from a friend some months ago. It had basically no issues, but today morning when I attempted to turn on (it was charged almost all night), what ...
0
votes
0answers
464 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 ...
7
votes
1answer
322 views

Do modern Android devices regulate AC mains power similar to a laptop?

There have been a lot of discussions about lithium-ion battery life across the internet. However, within these discussions I have found contradictory details about the way power is regulated between ...
2
votes
10answers
19k 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 ...
5
votes
3answers
5k 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 ...