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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6 views

Is it possible to keep the user data with a smartphone that boots to the data wipe menu?

My smartphone turns on without passing the OS loading screen, then loads the recovery menu (Redmi-Recovery 3.0). I can't turn off the device, I tried waiting for the battery to run off, charge it and ...
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2answers
2k 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 ...
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1answer
1k views

YouTube app holds a long wakelock. What app settings can I change to keep it from doing this?

I am using an HTC Evo 4g with Android 2.3.5 Gingerbread. I'm trying to deal with apps which keep my phone from entering sleep mode, and the YouTube app is a major offender. With downloaded apps, ...
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28 views

Screen on when charging on powered off phone

The issue My phone's screen is always on when I charge it while it is turned off. It displays this image: And the screen cannot be turned off. I believe it is not charging either, but I can boot it ...
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1answer
2k views

Moto G 2 (2014) Not Charging!

My phone is a Moto G (2014) XT1068. It has recently stopped charging for some reason. This morning it was charging and tonight, it decided that it would be a prick and not charge. Anyhow I tried ...
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4answers
2k views

S4 Wont turn on unless removing battery then turns off after 2 seconds

So, my Galaxy S4 turned off randomly today during charge. I attempted turning it back on via the power button but it would not respond. Then I tried taking out the battery and replacing it, the ...
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1answer
2k views

Where is the battery animation called?

I have a tablet from China, it's a Q8H Allwinner. It is rooted, and I've browsed the internal storage for hours to find the battery animation, I found them at framework-res.apk... Now I want to find ...
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2answers
5k views

Is the battery cycle count stored on the battery or the device?

I downloaded an app Phone INFO which shows a number of stats, particularly "Battery Discharge Cycles". I want to know if this number is being retrieved from the battery (i.e. it's just the number of ...
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1answer
22 views

What is this symbol on the battery? [closed]

What does this mean? It is one of the many symbols and logos on a phone battery. I know it's not technically an Android question, but at least it's related, and I couldn't find a more suitable ...
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1answer
2k 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, ...
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16 views

ADB Wifi loses connection when device's screen turns off - Realme 7 - Android 10

I work on Android Studio while using actual device for ADB using ADB over tcp/ip through command prompt (no additional software). But, this new device gets offline the moment screen turns off. I've ...
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What does “REMOVE ACCOUNT” in “Users & accounts” do when it comes to fixing the FAQ WhatsApp problem “Seeing numbers instead of contacts’ names”?

On Sunday, 13th September 2020, the battery of my Motorola Moto G5 broke down and I ordered a new one. Yesterday, on Friday, 18th September 2020, it finally arrived and everything worked just fine. ...
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1answer
32 views

Telegram does not recognise account after being offline for almost a week due to battery failure

On Sunday, 13th September 2020, the battery of my Motorola Moto G5 broke down and I ordered a new one. Today, on Friday, 18th September 2020, it finally arrived and it works just fine. Several errors, ...
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20 views

Battery Voltage and Percentage

I have recently bought a battery replacement, and not happy with the performance I have been monitoring its levels. I have obtained this graph, and one thing that surprises me is that the voltage ...
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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, ...
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1answer
1k views

Battery drains when phone is turned off

I have a used Samsung Galaxy S3 Mini GT-I8190. When I shut down the phone the battery still drains. The longer I leave the battery in the shut down phone the more charge it looses. Typically the ...
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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 ...
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0answers
25 views

Is this “app” malicious or is it a bug? [duplicate]

I was examining my battery usage and noticed this: I don't know what this "-5" app is supposed to be. Could it be malicious or is it just a bug? I own an OnePlus 6 with Android 10 (OxygenOS ...
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1answer
125 views

Phone shuts down at about 30% battery. When booted back up, it's at 1%

I'm having weird problems with my phone. I'll be using it normally, but at some point during my day, my phone is gonna shut down by itself. When I open it back up, the battery is at 1%, when not even ...
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2answers
2k views

Battery Status Indicator Error?

Okay so I have a very interesting story to tell.... Here is what happens... I charge my phone at night, wake up in the morning, pull it off the charger, about 9-10pm it drops to about 15%, which isn'...
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19 views

Android battery usage for a specific app

Recently, I developed a mobile application which significantly consumes the smartphone battery due to some of the functions of the application. I want to have a precise measurement about the battery ...
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1answer
28 views

What can I do to slow down battery degradation of portable power bank for my Android phone?

I just got Inland USB-A 5,200mAh Power Bank w/ LED Indicators for my android phone. It has a one-year warrantee, which seems to tell that its battery might degrade significantly after one year of ...
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1answer
5k 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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0answers
22 views

How to enable High power consumption setting in Vivo Y50

I want to programmatically enable the High background power consumption setting for an app. Adding it to deviceidle whitelist is not working. I tried this adb shell dumpsys deviceidle whitelist +com....
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2answers
7k 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 ...
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2answers
803 views

Karbonn Titanium S1 suddenly switches off

My Karbonn Titanium S1 smartphone switches off when I open the gallery, play any game, listen to music or do anything with the phone without connecting the charger. The screen starts to shrink and the ...
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1answer
878 views

How to recalibrate the OS for an external battery? [duplicate]

I recently bought an external non-standard 7000 mAh battery for my Samsung Galaxy S3 but the phone doesn't seem to recognize it. Is it possible that the phone needs to be reconfigured or recalibrated ...
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1answer
59 views

Help diagnosing constant CPU usage of phone during sleep (Battery Historian Chart)

I saw a great Battery Historian guide and decided to try it out. I noticed that last night while my phone was unplugged, the "CPU Running" bar was active the whole time when I was asleep. ...
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1answer
998 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 ...
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1answer
22 views

Reviving my phone after a small part of it (eg the processor) overheated

I tried to compress my 1.6GB video in the Media Converter app by exporting it to mp4(h264,aac) on my OnePlus 3 as per https://www.quora.com/How-do-I-reduce-video-size-on-Android. However, ...
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1answer
903 views

Android system battery drain

My android phone has heavy abnormal battery drains coming from Android system. 2000mAh and above on a single charge! I know for certain this is a software issue and not hardware. Before I hit the ...
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0answers
22 views

Smartphone not charging when turned On

Smartphone: Xiaomi Redmi Note 7s I have been charging it with Pixel XL's charger for 4 months. It stopped getting charged while turned on yesterday. If I turn off the device then it will take ...
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1answer
1k views

Battery drain issue on idle phone, how to find out the culprit?

Overnight, starting from a 100% charge, all apps closed, even from a fresh reboot, screen of course off, my phone (Redmi 6) ends up with a ~90% charge. I know this is abnormal, as my previous phone (...
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2answers
1k views

Is there any relation between charging rate and discharging rate?

Sometimes when I do not use the original charger but a different one it would take less time to fully charge the device than the original charger would do. But I can feel that discharging rate is ...
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0answers
31 views

High battery usage (no wifi no apps no wireless)?

I've noticed that I lose about 20% battery each hour while my phone is unattended and offline. I check the battery settings and find that no apps are running. The phone is rooted, and I'm wondering ...
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1answer
877 views

Motorola moto 4g, battery drain, always high media server actitivity

I recently bought a motorola moto 4g, and I quickly noticed that the battery is going low very fast! With no use at all, it's going down 15% percent per hour... The mediaserver is always taking up 50%...
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3answers
10k 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 ...
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1answer
1k views

Nexus 4 wont hold charge after screen and battery replacement

I've just replaced my broken screen and put a new battery into my nexus 4 following this you tube vid: http://www.youtube.com/watch?v=AZDAIgwbXk4. When I first plugged in the charger (1A generic usb ...
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0answers
15 views

Xiaomi Redmi 5 Whyred turns itself off

My Xiaomi Redmi 5 Whyred started shutting down randomly - rarely enough to make is hard to reproduce. So far happened once during a day and every 2nd night. I am using a Havoc-OS 2.9 (Based on ...
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2answers
7k 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 ...
280
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6answers
77k views

Does constant charging harm my Android cellphone?

I usually disconnect my cellphone from the charger some time after it's fully charged because I'm afraid the battery could lose capacity over time if I don't. However, I believe modern electronics ...
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1answer
1k views

FTM screen cant remove battery

my phone says FTM it suggests taking the battery out but I cant remove my battery so now what do I do ?
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3answers
51k 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 ...
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0answers
28 views

automatically power on android when charge is 20% or 10%

I know its duplicate on Power on when charging but only when battery level is greater than 20% but it seems that question has no answer and also android version has changes a lot , I am on Android 10 ,...
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0answers
12 views

What shall I do if I damage battery?

I've been disassembling phone - Xiaomi Mi 5X/A1, in order to change crashed screen. However, while I was trying to remove battery, I probably cut battery cover, so I can see white slices and sharp ...
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0answers
35 views

How would one simulate a charging experience on a real android device?

I possess a Samsung Galaxy S8 with Samsung Global Goals installed. The app allows you to donate based on ads viewed during the time the device is charging. Would be possible to essentially 'fake' the ...
12
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3answers
34k views

Automatically limit (stop) battery charging at a given percentage

Device : Moto X Play ( Rooted, Stock, Android 6.0.1, msm8916 Board, XT1562) Why do I want to limit charging ? ( Let's leave out whether my reasons are valid or not and accept that I want to, if you ...
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0answers
99 views

Android control battery charge programmatically

I'am using a Linage Android image (rooted) to control the battery charge and discharge with the commands: Charge: echo 0 > /sys/class/power_supply/battery/batt_slate_mode Stop charging: echo 1 >...
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1answer
48 views

How does Battery Management System work (at the hardware-interface level) ? And how is idle self-discharging of batteries handled?

I came across the following when I was reading up about fully drained batteries in phones: If the phone is OFF for a month, then it is probable that the battery has gone down to a point that the BMS ...
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2answers
275 views

How do I change the Battery Percentage that corresponds to a Voltage in Android

My original Li-ion has 3000 mAh capacity. I've modded my device to have a total of 7000 mAh capacity now. The enhanced capacity means that my percentage is not displayed accurately anymore. About ...

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