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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4
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1answer
47 views

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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1answer
51 views

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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21 views

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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12 views

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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0answers
35 views

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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0answers
15 views

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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0answers
20 views

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 ...
2
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1answer
33 views

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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0answers
39 views

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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0answers
15 views

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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15 views

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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30 views

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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29 views

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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26 views

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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18 views

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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0answers
25 views

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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25 views

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 ...
1
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1answer
39 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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0answers
44 views

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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0answers
21 views

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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34 views

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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62 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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0answers
39 views

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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0answers
506 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 "...
0
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1answer
25 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 ...
4
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1answer
409 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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43 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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0answers
38 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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0answers
17 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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14 views

Battery indicators differing when phone is on and off

When it is on, it charges until a certain percentage (around 50 or 60) and gets stuck. Then, I power off to charge and the indicator appears as 100%. Why is that? I know my phone (Freetel FTJ162D, ...
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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 -> ...
1
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1answer
38 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 ...
1
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1answer
78 views

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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0answers
55 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 ...
2
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0answers
36 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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0answers
15 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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0answers
23 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 ...
2
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1answer
60 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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0answers
30 views

Xiaomi phones battery compatibility

Xiaomi phones have several batteries, for example, BM35, BM21, BN43, and etc. I'd like to know the compatibility of those batteries, for example, if BM35 has the same pin and size as BM21 something ...
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0answers
26 views

Nokia 5.1 Plus maximum charging power

I would like to know the maximum power a Nokia 5.1 Plus get to charge in watts and amperes .
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0answers
37 views

My battery drop from 60% to 0%

So i have this problem with my original battery. When my battery drop below 60%, its immediately change into 0% and died 30 second after. And when im charge it, the battery fills from 0 to 50% and ...
1
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0answers
33 views

Which wi-fi band uses more battery? [duplicate]

I have an Android device that supports both 2.4 and 5Ghz bands. Also my WiFi router is dual band. I know that 5GHz band supports higher speeds but the difference isn't significant for my connection ...
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0answers
40 views

Is it better to charge your battery above 50% or let it go down, technically speaking? [duplicate]

Following up on this question: Is it better, when the battery is at 40% to let it drop (use the phone until it's 30% for example) or to let it charge to 70%? As far as I understand 50% is the "...
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0answers
55 views

Why is my phone dies at 90 percent

My phone is Samsung J7108. It dies when it reaches 90 percent and it will turn on once again. But then, when it reaches 80, it will die again. I have to plug it on charge so that it will die down. I ...
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0answers
29 views

Switch off the backlight of the LED screen of the android phone, while using it as a webcam via iVCam

I have upcoming exams which shall be remotely monitored through webcam. Now the thing is that I do not have an actual webcam and I have decided to use my android phone as a webcam via iVCam (using USB,...
2
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1answer
45 views

Is it possible to keep phone plugged in a powerbank when the battery is worn out?

Is it possible to glue a powerbank to the back of a phone, and keep it plugged in permanently, if the battery has been worn out?
2
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0answers
22 views

Help with ultra power saving mode bug

I have a Samsung Galaxy S5 with a major problem. One night while turning the phone to Ultra Power Saving Mode the phone immediately shut down. I left the phone o charge and the next morning I woke up ...
1
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1answer
51 views

Should I change the battery of my Samsung A7 (2018)?

My phone shut off completely a few hours ago. It was at 20% and somehow it jumped to 0% and shut off. I didn't know what happened so I just put it to charge. I had this phone for 2 years, if not 3. I'...
2
votes
1answer
69 views

Low CPU use, but HIGH battery use! How?

This file sync app is active for 8 seconds, keeps awake for zero seconds, and yet uses 25-30% of power in a given day. What could an app be doing to drain battery, without showing up as CPU use time? ...
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0answers
33 views

Is there a way to "Ignore" an Android phone's battery percentage reading?

Dumb question, but bear with me: I have a Sony Xperia XA1 Ultra (G3223) in my drawer, intact, except with one thing--A glaring battery problem. About half a year ago I made the mistake of using it ...

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