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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how to stop Mobile shutting down on apps using as Battery dropping from 70% to 0% in Android 6.0.1

Question:- how to stop Mobile shutting down on apps using as Battery dropping from 70% to 0% in Android 6.0.1. I have formatted my External micro sd card as internal and automatically while ...
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How to completely discharge a mobile device?

In case of laptops we should remove battery, then turn it off and hold power button for 15 seconds to completely discharge the motherboard. Whats the procedure in case of a smartphone or a tablet with ...
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2 votes
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What is meant by "proportional" and "smearing" in batterystats

I want to analyze battery consumption of an app and ran: > adb shell dumpsys batterystats > dump.txt Within the filedump I found the section I am interested in: Estimated power use (mAh): ...
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white battery/does not turn on/does not charge

I was using a Xiaomi RedMi 9T (lime), nothing unusual. I left the wifi all over the night and the next time checked, MIUI was updated from 10 to 11. But turned off and its looping at the redmi screen,...
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Battery Protect Mode: On or Off?

I have a Lenovo Android tablet that I intend to be plugged in 24/7. I have either two options: Battery protect mode OFF: the device will occasionally discharge to 99%, then be charged back to 100%. ...
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Badly swollen Galaxy battery - safe to handle?

I've recently found my old Galaxy S6 in a drawer, where it's been sitting for the last ~1.5 years. In that time, the battery has swollen very badly, pictures below: I need to so something about the ...
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Extremely inconsistent battery life without app usage

I'm using my Pixel 2 (non-XL) rather sporadically throughout the day, most of the time I just keep it in airplane mode with WiFi (and WiFi Call) enabled, except 1-2 hours outside, plus 30-60 minutes ...
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Does being connected to wifi not drain any battery whatsoever if it's not being used?

I have the samsung a32 5g. I tested my phone with wifi connected while doing nothing, and it didn't move even 1 percent after an hour. Does being connected to wifi use up no power at all if it's not ...
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Has the choice of "network mode" an effect on battery when mobile data is switched off?

I have read that 2G uses less battery than 4G LTE, especially if I don't need much data. Some sources : https://www.uswitch.com/mobiles/guides/how-can-i-make-my-phone-battery-last-longer/ Does 4G ...
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Where to find Memos app folder in Samsung Galaxy J3

I am having a major problem with my Galaxy J3 (besides just being a J3 ^_^). The thing has been doing random reboots when in the middle of work, went to the bios screen a couple times, then started ...
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Android 11 October Security Update drastically drains idle battery usage

EDIT Ever since I installed the latest security patch available for my Phone (October 5 patch), there has been insane idle battery usage. More like 1% dropping sequentially whenever I'm sleeping It's ...
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Google fit battery/location usage - Is it constant or in intervals?

How does google fit run in the background when unoptimized? Does it constantly utilize location/GPS or only every few minutes? I notice on my Samsung a32 5g location is not always utilized because the ...
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Android 11 - If you turn off your screen with an app open that uses data, will any data/battery used be considered background?

Let's say I open Pokemon go and was using mobile data to play it and kept the app open but turned off my screen. For the next few hours, I know battery and data usage will be significantly reduced, ...
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4 votes
1 answer
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Is possible to charge the battery even If I erase boot and system partitions?

Is it possible? Or the device needs at least a kernel to be able to charge? I have a device in bootloop that every 3 seconds it vibrates and I'm not sure if its does not charge because I erased boot ...
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1 answer
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Android 11 - What exactly does "allow background activity" do?

From what I understand, it simply allows apps that are manually ran to update and send notifications faster while in the background. Is that all it does, and if so should you turn it off for most apps ...
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Android 11 - Should you turn off optimization apps? Do they not save as much power as they are said to do?

https://dontkillmyapp.com/samsung "Battery optimization, Auto-optimize, Adaptive battery, Adaptive power-saving, Background restrictions, lists of Sleeping apps, Unused apps, Deep sleeping apps, ...
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Google fit - Putting app to sleep & optimizing battery usage: Do they interrupt tracking KM distance?

I'm using google fit to track my walking distance for pokemon go, and I'm not sure if I need to make it "never sleep" or not allow it to be optimized for it to work well in the background. ...
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SD Maid installed service - Is it actually useful and doesn't take up much battery?

I found out about the app's installed service, I'm not sure if it would take up more battery by enabling it to clean memory and stop apps. Has anyone found this installed service useful? Will it ...
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Samsung - Does "keep screen on while viewing" take up more battery?

I have the samsung a32 5g. Does it take more battery from the phone since it uses the front camera to see your face all the time?
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Android device turns off while there is enough battery but won't turn off in recovery mode

My android device (SM J510F - Android 7.1.1) shows 30% for battery but turns itself off. When I turn it on it will turn off even while it is booting to system. If I plug the charger it wont turn off ...
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2 votes
1 answer
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What exactly does carrier services do and should I allow it to use mobile data while data saver is on?

I'm using the samsung a32 5g. Just wondering if it's worth allowing it to use my mobile data since I'm on a tight plan and why it would be important. All I use is SMS messages, I read that all it is ...
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Does logging into multiple google accounts drain battery/data faster?

I have the Samsung a32 5g. I'm logged into many G-mail accounts and twitter accounts, will doing so drain my phone battery and data faster simply by having them logged in? Do they do this only if they ...
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Samsung a32 5g - Does having an app running in the foreground vs when you tab out of it when the screen is turned off take more battery/data?

In case you are confused on what I'm asking, let's say I open Pokemon go and have it running in the foreground, then turn my screen off. Will this take up more battery and data than if I tabbed out of ...
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Do mobile coolers prevent battery from bloating?

Do any of those mobile coolers help prevent battery from bloating? or it'll just bloat due to natural aging? I'm a hardcore gamer so I play games all the time. All my previous phone tend to bloat ...
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Show battery at 100% when it is charged to lower value?

On the Samsung Galaxy Tab S7, you can limit your battery to 85% and have it show 100% when it is at 85%. Can I somehow replicate this behaviour on my OnePlus 6 running on LineageOS 18.1 with root? I ...
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Keeping phone plugged in vs. using a charger control?

I have an old, quite banged-up Huawei Y6II. I want to use it as a static device and turn it into a security camera, web server, wifi hotspot, etc. Is it okay to keep it plugged in all the time? Or ...
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1 vote
0 answers
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How to cure Battery draining and lagging problem

Question How to cure Battery draining and lagging problem I have lyf water 7 ls-5504 mobile it's been rooted through super user to use link2sd and link apps. But before rooting it's have huge proble ...
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Phone charging symbol but not gaining charge

I have a OnePlus 7 Pro running Resurrection Remix. Sometimes when using a type c to type c cable, the device will show the charging icon but won't gain any charge (it doesn't lose charge either) until ...
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Alcatel 1x only turns on when screen ribbon is detatched

My phone, an Alcatel 1x, has been giving issues with the battery lately (it drains very fast and I can't use it without the charger). But the real trouble is that since morning I've been trying to ...
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Charging control in Android without using any third-party apps

Is there any way to control charging in Android programatically without using any third party Apps? We have an Android Application which has to be installed at Client Location in Tab and the tab has ...
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1 vote
1 answer
57 views

Does the bootloader reset after removing the battery?

After successfully flashing a modern custom ROM on my old phone, I tried doing the same with my girlfriend's old Lenovo Vibe P1m. However, after mistakenly pulling out the USB cable at the worst time ...
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1 vote
0 answers
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Why uninstalling system apps through ADB cause problems like battery drain?

I have an Android 10 phone (realme) which came preinstalled with a lot of bloatwares. Few days ago I used adb to uninstall a lot of apps, like the default browser, file manager, facebook bloatwares, ...
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1 vote
0 answers
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Battery level to output via Bluetooth for external control

Is there any device to read the phones battery level ; lets say 10 % to 90% to trigger a signal out over blue tooth; some apps haves control; like sonoff; for wifi control but I want to trigger ...
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What happens to a Li-Pol battery L13D1P31 if it is left on a permanent charge?

I have an old tablet (Lenovo Tab 2 A7-30 and a L13D1P31 battery) that I want to use as a permanent display of some data like a weather forecast. I would like to leave this tablet plugged in ...
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200 views

Messenger(FB) app that does not run in background

On Windows Phone and iOS messaging apps(like Facebook Messenger) simply use push notifications. Is there an option only to only enable push notifications for FB messenger on Android? Right now it ...
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Chrome using a lot of battery without being open

I got a new phone (pixel 4a) and chrome is using a lot of battery without being open. If I pause the app I get much longer battery life. When checking my battery usage by app chrome is always the ...
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856 views

Battery usage for "mobile network standby" even without SIM-card

I have a phone reserved for development, which has never seen a SIM-card (to avoid accidental use of expensive amounts of data transfer). Now, when checking battery usage, I see 4% accounted to "...
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0 votes
1 answer
35 views

Tablet battery replacement and alloc_device_open fail?

I had to do a battery replacement on an Android 4.x tablet Denver TAC-97032. The battery had been obtained from the manufacturer as aftermarket part; it is however not of the same size as the original ...
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4 votes
1 answer
603 views

dex2oat64 is eating battery on Android 12 (Beta). What is it?

I have updated my Pixel 5 to Android 12 Beta, and in the last update, the "app" or service called "dex2oat64" eats too much battery. I found some thread in Reddit, but they also ...
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72 views

Why are battery optimization options getting reset all the time and how to prevent this?

They aren't just reset after every restart / upgrade but even without running any update or restarting. One problem that results from this beyond having to change the settings after update is that ...
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3 votes
0 answers
39 views

Is possible to see battery status of a bluetooth audio device if is not used for calls?

I have bluetooth audio receiver which shows its battery level in Bluetooth settings. But when I disable Phone calls for this device, can't see battery level anymore. It's even possible to see it ...
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2 votes
0 answers
21 views

Removed battery while phone plugged in

I accidentally removed the battery from LG G3 while plugged in and charging, does this damage the battery or the phone?
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33 views

Is there a way to make the battery level easier to see on some Android phones such as Xiaomi?

I looked at the battery level on Samsung A32 and it was easy to look at, but on Xiaomi it looks like this: Is there a way to make it easier to look at? Right now I have to go to Settings -> ...
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1 vote
1 answer
54 views

Battery for Samsung Galaxy S8

I am looking to replace the battery in my samsung galaxy s8. Amazon shows many available batteries, ranging in capacity from 3000mAh to 4350mAh, all about $20 or less. The one and only authorized ...
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1 vote
1 answer
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What is the approximate battery discharge rate of Google Pixel 3XL phones when turned off?

I am considering purchasing a new Google Pixel 3XL Android phone, primarily for photography. I don't believe those phones have been manufactured for 2-3 years, so I am concerned about the battery ...
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1 vote
0 answers
82 views

Battery drain while doze, CPU abort wakeups

I'm running Android 11, in a Moto G30. I've noticed battery drains from 100% to 80% from 1am to 9am when I wake up. I decided to get a bugreport.zip using ADB and load it in Battery Historian. Seems ...
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2 votes
0 answers
39 views

Galaxy Note 3 blacks out on rebooting at lock screen

I'm having trouble rebooting Samsung Galaxy Note 3, where it starts rebooting after holding lock button, but blacks out when/before it reaches lock screen. After blacking out (or before rebooting) it ...
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1 vote
0 answers
18 views

Disabling Samsung battery management from putting my apps to sleep when the phone screen is turned off and running on the battery

I'm looking to disable Android's battery management. On my Samsung S10 Plus running Android version 11 are several apps running in the background, but they only run when the phone's USB port is ...
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1 vote
0 answers
24 views

What are android batteries PIN type?

I'm trying to determine the different PIN types of the batteries used in Android, specifically to those batteries that use flex cable. For example; The image above is a sample of batteries for Xiaomi ...
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2 votes
1 answer
80 views

How to disable battery saving when battery level is below 15%?

I used an old tablet to operate a smart home. In order to work continuously, I took the battery out of it and connected it to a 4V power source, which works continuously. Based on the measured battery ...
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