Questions tagged [battery]

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

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1answer
2k views

How do I determine exactly which process is draining my battery?

Every since installing Android 6.0.1, my phone runs very hot and my battery drains crazy fast. With a little trial and error, I eventually determined that at least one process called AtFwdService was ...
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2answers
2k views

Galaxy Note 4 turns off at about 15% remaining battery capacity

I've been using my Note 4 for more than 2 years now and I'm absolutely happy with it, except for that one issue: the battery indicator on top does not match the real remaining capacity of the battery. ...
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0answers
430 views

Asus ZE551KL Wifi Battery Drain when turned on but barely using it

I recenty bought an Asus Zenfone 2 Laser (ZE551KL) with Marshmallow. Battery wasn't good from the start but it got worse and worse, mainly because Wi-Fi uses up to 2/3 of a full charge. I don't watch ...
-1
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2answers
397 views

How to kill/exit/close any app completely? EXPERT ADVICE [duplicate]

Is there any way to kill a app completely JUST like Windows 7 where i can exit any application completely or prevent autostart by going into "msconfig". How to kill/close an app so it does not bother ...
11
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3answers
7k views

Ideal charging / discharging percentage for maximum battery life?

One of my friends has a relatively new Samsung smartphone. He has this app that notifies him whenever the charging is up to 80%, and tells him to unplug the charger. He tells me that it will increase ...
2
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1answer
418 views

What else might be causing battery drain on my Android 6.0.1?

My Galaxy SC-04F, not rooted, recently upgraded to Android 6. Since then, it runs really hot and the battery drains very fast. I looked for solutions on the net, and I found two suggestions: Clear ...
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2answers
406 views

Android shuts down when unplugged

I have an HTC One m8. It's running android 6.0. If I attempt to boot up the phone it instantly shuts down when reaching the Google Logo. If I plug it in to a power source (AC/usb), it lets me boot, ...
1
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1answer
92 views

Probably blowed up batery or smartphone with multimeter

First, I turned off my LG-D280N and removed battery. Set the multimeter into 20VDC (next is 2VDC) and correctly checked battery pins and checked the voltage. Next, I checked pins on case, set "diode ...
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1answer
931 views

My LG LEON battery dead?

I was charging my LG LEON and it suddenly turned off with a 0 percentage of battery, then when i tried connecting it to the charger it didn't wanna charge. I tried with five different chargers and ...
0
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1answer
55 views

Calibrating 2 batteries

since I own 2 batteries for my G3 and one of them isn't working properly, I wanted to calibrate both of them. I've just calibrated my extended 5200 mAh battery and it seems like it lasts longer so I ...
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2answers
7k views

HTC One M8 resets some settings every time battery dies

Every time my HTC One M8's battery dies, which is roughly once every two weeks, when I charge it and turn it on, a large portion of random settings or configurations are reset to default on the device....
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0answers
148 views

“10387” using up battery

I have absolutely no clue what this process is. I've never seen it before, and I check the battery usage tab a lot. I'm worried it's a virus or something, although I do have CM Security installed, I ...
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0answers
101 views

What part of Android is responsible for reporting how much battery an app uses?

In Android Marshmallow (and maybe earlier versions), you can go to App Info and see how much battery an app has used. If you click into it, it shows much how much CPU it's used as well as keep awake ...
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1answer
2k views

Is it safe to charge Galaxy j7 using Galaxy A5 charger?

A5 has 2900mA battery and a charger with fast charging capability and j7 has 3000mA battery with normal charging. Can I use that to fast charge the Galaxy j7?
2
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1answer
2k views

Allow instant boot after phone with empty battery is connected to power

Let's say my phone is out of battery, and has turned itself off. I get to a charger, and connect it. Maybe I need to make an urgent call. But my phone refuses to boot until the battery is at 5%. It ...
1
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2answers
147 views

Can I charge my phone with many different charger speed types?

I have a nexus 6p, and various different chargers which I bought for the phone. One is a slow USB charger (comes with the box). Another is a type c to type c cable connected to the AnkerCore 20100+ ...
2
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2answers
6k views

How can I turn off data when my phone's screen is off and only let data come back on once per hour or so to sync apps?

I have been using an app called Doze which turns off data when my phone's screen is off. I'd like to find a way that would turn off data when the screen is off but would turn on data once per hour or ...
3
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0answers
110 views

Samsung S4 won't charge from socket

I am looking for help before sending my phone to maintenance service. All of sudden my phone stopped charging from a socket. The phone is charging (bolt showing, charging screen showing etc) but ...
0
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1answer
14 views

My Phone isnt working

I havent used my LG Volt phone for a couple of months because i bought a ios phone. My ios phone broke and i tried charging my LG Volt phone over night and turning it on no response. I tried taking my ...
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2answers
1k views

Can access Fastboot, but it isn't working. Software issue?

First of all, thanks for taking the time to read this. I know it's a long post, I'm just trying to be as detailed as possible. I've a Moto G XT-1032 that stopped working a couple days ago. It has ...
0
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1answer
1k views

How to decrease screen brightness without draining extra battery

I am currently using ZenFone 5 now with android OS 5.0. Even though I've set my brightness to the lowest but it is still too bright for me, and it's battery capacity is low too... so is there any ways ...
3
votes
1answer
69 views

Phone only works with busted battery

I have a Samsung Galaxy S3. A few days ago I noticed that the phone shut down on it's own, but when I plugged it to a charger it showed that the battery still had 20%. When I removed the battery I ...
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1answer
280 views

battery charge stops at 99%

My phone is Kyocera Hydro Icon, running Android 4.4 After using it for almost a year, recently charging its battery stops at 99%, indicated by the battery icon and the corresponding LED staying red ...
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1answer
50 views

Nexus 5 battery inaccurate

My Nexus 5 is very inaccurate with its battery life, it will usually die at about 90-85% but occasionally it goes to ~40% before dying. is there anyway for me to tell it "Hey! You have 0% battery, fix ...
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1answer
110 views

Android Tablet Won't Stay Off

I have a Cube U30GT Mini tablet with Android 4.1.1, kernel 3.0.8, Rockchip rk3066. This tablet won't stay off unless the battery is dead. Doing a normal "Power Off" just reboots the tablet. If the ...
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1answer
1k views

Nexus 5X no “Charging rapidly” on original (stock) charger

After 7 months LG Nexus 5X now doesn't show "Charging rapidly" but only "Charging". Ampere app shows 1700 - 2100 mA max. Overall charging time now 50% longer than initially was. In accordance to ...
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1answer
75 views

Samsung won't turn on past the logo screen

My Samsung S4 mini won't turn on past the Samsung logo screen. I've tried holding down the down power and menu button at the same time and clearing the cache partition thing and rebooting it from ...
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0answers
510 views

LG G2 wrong battery size report

I get a LG G2 with Android 5.0.2, and when I check the battery it says that the capacity is 1900mAh instead 3000mAh that is the real amount of battery capacity. I make a little research and found that ...
3
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0answers
76 views

Is it possible to find out what is accessing the Bluetooth service?

Is it possible to find out what is accessing the Bluetooth service? Right now I have an issue in which my phone will drain after about 8ish hours. The Battery view is showing Bluetooth as the top ...
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0answers
413 views

Battery Percentage Recalculate (Not Calibration Reset)

When I'm busy and don't want to reboot, I put the android phone on charge and pull out the battery and put a charged battery in quickly (without reboot) But the battery percentage level does not ...
1
vote
1answer
3k views

Why does ulrdispsvcfastwl wakelock keep draining my battery?

I am using Slimkat ROM on a Nexus 5 with At&t. My battery life has been excellent with this ROM. Recently I've been getting a ulrdispsvcfastwl wakelock that will keep the phone awake continuously ...
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0answers
49 views

2 years old Zenfone 5, how to control battery use?

Sorry for asking about such an overdone subject. Question is, I have a (as of now) 2 years old Zenfone 5. Android 4.4.2, ZenUI, not rooted (yet), Energy Management off, stock charger. ...
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1answer
175 views

Interchanging battery with a higher capacity battery

My Redmi 1s has a battery capacity 2050mAh (BM41). And the upgrade of the phone is Redmi 2 with capacity 2200mAh(BM44). Can I use this battery if it fits in my device? Will it creates any software ...
4
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1answer
13k views

Where are the battery capacity files located?

Background My current device Huawei Honor 6 comes with a 3100 mAh battery. I was therefore surprised to see 3C Toolbox Pro report the capacity as 4000 mAh. I mailed the developer of the app and his ...
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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 ...
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0answers
119 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
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1answer
383 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
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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
218 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 ...
2
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1answer
212 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 a minimum number of apps: Runtastic, Runkeeper, GPS Status & Toolbox, ...
-1
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2answers
7k 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 ...
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0answers
17 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
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2answers
146 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 ...
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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
606 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
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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.