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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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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 ...
Bearsy's user avatar
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0 answers
26 views

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 ...
Aasim Hussain Khan's user avatar
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0 answers
18 views

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 ...
Joselin Jocklingson's user avatar
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0 answers
27 views

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 ...
Samih EL SAKHAWI's user avatar
1 vote
0 answers
31 views

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 ...
hanshenrik's user avatar
-1 votes
1 answer
29 views

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!
user408694's user avatar
0 votes
1 answer
48 views

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 ...
dwolfeu's user avatar
  • 101
1 vote
1 answer
201 views

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%...
chiliNUT's user avatar
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1 vote
0 answers
37 views

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 ...
kando's user avatar
  • 121
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0 answers
17 views

Displaying the battery discharging notification in a larger font through settings for configurable greater chance of user charging phone in response

It would be nice if there were a way in the Android settings to display the battery discharging notification in large or extremely large letters. This is because when the notification is displayed, ...
Joselin Jocklingson's user avatar
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0 answers
22 views

Battery notification, overriding do not disturb and playing alarm at night, though settings

Many of us go to sleep with the phone next to the bed or on the tabletop next to the bed. When at night, the phone enters the do not disturb mode, and we sleep. However, it would be nice if the user ...
Joselin Jocklingson's user avatar
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0 answers
15 views

Finer control on battery running out and having to recharge it

Using a smartphone is nowadays vital to work. When my battery reaches 2%, a notification, from the bottom of the screen (this, was well thought. The battery, and battery charger is on the bottom, so ...
Joselin Jocklingson's user avatar
3 votes
1 answer
910 views

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. ...
Michael Altfield's user avatar
1 vote
1 answer
196 views

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 ...
user14448's user avatar
2 votes
1 answer
157 views

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 ...
ljwobker's user avatar
  • 121
3 votes
1 answer
357 views

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 ...
infinitieunique's user avatar
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0 answers
28 views

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 ...
Jon Worek's user avatar
  • 101
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0 answers
2k views

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 ...
Dave's user avatar
  • 21
1 vote
0 answers
68 views

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 ...
sdaau's user avatar
  • 251
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0 answers
48 views

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 ...
klau's user avatar
  • 131
3 votes
0 answers
104 views

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 ...
Tsing Kwai's user avatar
2 votes
0 answers
760 views

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/...
sudoer's user avatar
  • 149
0 votes
0 answers
19 views

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
Andrew's user avatar
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0 votes
0 answers
159 views

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 ...
Dong Li's user avatar
  • 133
1 vote
1 answer
61 views

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 ...
WarrenFaith's user avatar
1 vote
0 answers
74 views

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 ...
Prashant Akerkar's user avatar
0 votes
0 answers
3k views

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 ...
user707264's user avatar
2 votes
0 answers
35 views

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 ...
ShangWang's user avatar
  • 363
0 votes
0 answers
72 views

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 ...
VV223344's user avatar
1 vote
0 answers
26 views

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 ...
TinyGrasshopper's user avatar
1 vote
0 answers
70 views

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 ...
retr0cube's user avatar
0 votes
1 answer
227 views

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 ...
Andrew Hoseason's user avatar
2 votes
0 answers
491 views

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 ...
RSF's user avatar
  • 21
0 votes
0 answers
195 views

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 ...
Eric Bedwell's user avatar
0 votes
0 answers
2k views

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....
Priyanshu Jangid's user avatar
1 vote
0 answers
426 views

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 ...
Forivin's user avatar
  • 337
1 vote
1 answer
139 views

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....
Tim's user avatar
  • 485
0 votes
0 answers
47 views

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 ...
Androidquery's user avatar
0 votes
0 answers
84 views

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 ...
Ya Y's user avatar
  • 1
2 votes
1 answer
198 views

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): ...
M.T's user avatar
  • 131
0 votes
1 answer
6k views

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%. ...
E H's user avatar
  • 3
1 vote
1 answer
643 views

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 ...
user4520's user avatar
  • 113
1 vote
0 answers
67 views

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 ...
Mario's user avatar
  • 176
1 vote
0 answers
68 views

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 ...
ShangWang's user avatar
  • 363
0 votes
0 answers
214 views

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 ...
ChennyStar's user avatar
1 vote
0 answers
149 views

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 ...
J T's user avatar
  • 11
1 vote
0 answers
138 views

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 ...
Mab's user avatar
  • 111
0 votes
0 answers
42 views

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, ...
ShangWang's user avatar
  • 363
4 votes
1 answer
366 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 ...
Carlos Henrique's user avatar
2 votes
1 answer
10k 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 ...
ShangWang's user avatar
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