Questions tagged [battery]
For questions related to batteries on Android devices. Questions about battery life should be tagged with [battery-life]
874 questions
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How to access the app battery optimization settings on Android 12 and above?
The menu appears to have been hidden on the more recent Android releases — currently on Android 14 the only per-app toggle the users are given is 'allow background usage' (app info → app battery ...
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How to tell Android that 80% battery is actually 0%
I have a phone whose battery is dying at 80%. How can I calibrate Android so that it's aware of the actual battery capacity? I have root access.
To be clear, I'm not asking to increase the capacity or ...
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Battery safety after screen replacement
I've recently completed a screen replacement on my Galaxy S20 FE. I got a new screen pre-installed on a frame, so the repair was to basically transplant all the internal components into the new frame. ...
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Ascertaining damage from fully discharged android phone
I recently purchased a refurbished Pixel 8 Pro which was supposed to be in "pristine, flawless condition and looks and functions 100% as new". I do have a window of opportunity to return ...
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How can I change system file values?
I had the original battery on my Redmi K20 Pro for like 5 years. The battery degraded quite a bit so I disconnected the original battery from the bms and attached an external battery on the back of my ...
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Calibrating a high-capacity battery in Android
Good day. Installed a new NOHON BN59 5000mAh battery in Xiaomi PocoF3 phone (original battery 4520mAh). According to the Aida64 application, the battery charges up to 100% (4400-4500mAh) and continues ...
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Is this Samsung battery usage indicator broken?
idk if this site is right place place to ask the question, but i do not know how this "samsung battery usage indicator" works.
You can see from last charge(95%) it used 78% till now, and ...
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Recover data from HTC One with dead battery
I recently found my old HTC One and wanted to take a look at the pictures on there. To my unpleasant surprise, the battery died and doesn't charge.
I can still plug it in and it shows charging, but it ...
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What should I do if a brand new Android phone is overheating?
I brought 'Moto G24 Power' smartphone 2 days back. From day one it is overheating evening when I am doing basic tasks. I brought it from Flipkart online. There is no return, only repair from service ...
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Smartphone with SIM card slot and data network transmitter/receiver
I was wondering whether it would be possible to have a smartwatch that had a SIM card slot and a data network transmitter/receiver.
This is because, some smartphone apps, on some smart watches, may ...
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Samsung SM-T320 battery issue reboot loop
I own a Galaxy Tab Pro 8.4 Wifi (SM-T320), with LineageOS 20 (Android 13).
I always had a weird behaviour with this tablet. When the tablet battery value is between 25% to 29%, the screen flicker, and ...
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Can I change battery meter display to (actualReading/85)*100?
Can I change my battery meter to display the value (actualReading/85)*100 instead of actualReading? so when it's at 85% it displays 100%, and when it's at 50% it displays as 58%, when it's 10% it ...
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When an android runs out of battery does it keep open the tabs that were being used? [closed]
It must be a stupid question but it’s important. Thank you!
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Has my battery actually been replaced? Samsung A40
I went to a phone repair shop to have my display replaced, which was cracked. I took the opportunity to have the battery replaced too: My Samsung A40 is four years old and I noticed that the battery ...
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How to force factory reset Samsung Galaxy S21 with low battery?
My Samsung Galaxy S21 phone is damaged so the battery won't charge when the charger is plugged in. However, the charger still supplies power to the phone. It's been plugged in and sitting happily at 5%...
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Battery Calibration - Battery Percentage Going Down While Off-But-Charging (Pixel 5a)
My phone (Pixel 5a) went from 100% battery to off quite quickly, and it had been doing so. When it died from 100%, I turned it back on. It turned on, showed 0%, and died within a minute. I plugged it ...
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How to keep "Battery Saver" mode enabled, even when charging
How can I keep "Battery Saver" enabled, even when my device is charging?
I travel a lot on multi-day excursions where I don't have access to power, so I charge my phone with a battery bank. ...
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Leaving USB drive plugged in to android causes battery drain even when sleep
If I accidentally leave a USB drive in my samsung galaxy S7+ it will drain the battery in a few hours even if it's not being used and the android goes "sleep".
Why is this and and how to ...
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Is there a way to configure always-plugged-in android devices to partially change battery or NOT stay fully charged?
So I’ll apologize in advance as I’m an iPhone user for mobile and Linux for work/desktop - Android is mostly unfamiliar territory to me. I’ve recently set up 3 or 4 android devices (a various ...
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Impact of location access (global setting in device's settings) on battery power consumption when there are no apps accessing it?
I vaguely remember a post whose author stated that having a global location access setting in an off state does not discharge an antenna and it continues working in a "passive mode".
So the ...
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Operate pixel 3a XL without a battery [duplicate]
I’m wondering if anyone out there who owns a Pixel 3a XL has ever tried to operate it without the battery.
I'm asking specifically about this model of phone, and am not looking for general guidance ...
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Battery drain caused by Android System (job.deadline and motion sensor)
Environment: Redmi Note 10 Pro, Android 13, MIUI 14.
Since a pair of days I'm facing a battery drain never seen before: by a first look the culprit seems to be Android System:
The fact is that the ...
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Are there models of smartphones designed to run on AC adapter/extern power supply permanently?
Basically, I want to use a smartphone as a fixed position audio player (and rarely for browsing), so I'm thinking, I could use a second hand smartphone for this. However, I'd like to have it plugged ...
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Android Battery Report
Is the Android OS battery breakdown not an exhaustive list of battery drain sources?
I find that it never adds up.
One time, after not restarting the phone for a month, the battery started to drain ...
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Bluetooth speaker failed back to phone speaker when there's a power status change on a GSI ROM
Current Behavior:
When my Bluetooth earphone reports a power change to the phone, the Bluetooth disconnects and falls back to the phone speaker.
The problem
The Bluetooth speaker falls back to the ...
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dumpsys battery in Termux
I am trying to get battery info in Termux.
I granted android.permission.DUMP and android.permission.PACKAGE_USAGE_STATS via ADB for com.termux (Termux app)
Then I opened Termux and types in /system/...
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tablet doesn't turn on, does it need a backup battery?
I would like to know if the tablet needs a backup battery to start (the device does not turn on anymore)
It is an old device.
thanks in advance
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My android phone drains from 100 percent to 0 percent in 20 minutes
I have been using my laptop to charge my android phone until recently when I noticed the back lid pushed to the back slightly and then the battery drains from 100 percent to 0 percent in 20 minutes. I ...
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New battery results in strange behavior
I was having the impression that my phone (Pixel 4) battery is already low on capacity (and a battery monitor calculated a capacity of 61%) so I ordered a new one and followed a tutorial on how to ...
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Battery low triggering by ringtones and voice in Android phones
Is it technically feasible to have this feature of Battery low triggering by ringtones and voice to the end user say when battery has reached level of 10% or 5% in android os phone devices?
This ...
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Does using two SIM cards in a smartphone drain the battery more?
Does using two SIM cards in a smartphone drain the battery more? If yes, what does the phone do differently to cause a higher energy consumption?
If take out one SIM card, is it true that the phone ...
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Does having more widgets/things on screen when the screen is off or on use up more battery than if there was less?
Let's say you had a timer widget that was counting down time. If you turn off the screen, would the widget be taking up more battery than if it wasn't on screen and was just in the background counting ...
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Phone battery rapidly discharges after reboot
So, what happens is this:
I turn my phone off for the night. The next morning I start it up again, and it's still the at the same percentage. But then, within minutes, it will suddenly start ...
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How would you verify Android battery stats apps?
This is more a question about diagnosing battery and battery hardware, than it is specifically about Android. If there is a better StackExchange site for this question to belong to, please tell me, I ...
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My phone is receiving ~1700mA but it's slow at charging
I have 2 Xiaomi phones that both have 18W fast-charging and receive around 1700mA while charging, but one of them takes a long time to charge (even if i change the USB cable).
How does that make any ...
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Screen fading and battery icon outlined in red
I've got a new Doogee S40 running Android 9.0.
A problem started when the battery level went down to 20%. The battery icon started to be outlined in red and the screen started dimming after around 5 ...
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How can I extend the length of the batterystats history?
I am doing some power consumption analysis using Batterystats and Battery Historian. The problem that I am facing is that the length of history I can get from the phones varies widely form brand to ...
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External SSD drive can only be detected when Android is on 100% battery
Android 11 will communicate with the external drive using a -y- connector, one lead to power, and the other lead to PNY 1TB drive.
However, once the battery drains below 100 percent, Android refuses ...
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How To Charge Android Phone In Fastboot (Bootloader) Mode?
My Android Phone Is Not Charging. Bootloader Shows The Warning Battery Low. I Accedentaly Erased /Boot /Recovery /System Partition. And Because Battery Is Low I Can Not Flash Boot.Img And Recovery.Img....
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Bluetooth battery level not showing up in status bar
I'm using Lineage OS 18.1 and a BLE Mouse that reports its battery level.
I can confirm that the battery level is reported correctly, by connecting it with my Linux computer:
(See Devices: DIY Page ...
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Can I read data and IMEI of a phone that can't be powered up?
I have an old Android phone Kyocera Hydro Icon C6730, which is stuck in powering up, while being connected to the power strip. Its battery is also old and I'm not sure if it is still working correctly....
- 503
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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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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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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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