Questions tagged [battery]
For questions related to batteries on Android devices. Questions about battery life should be tagged with [battery-life]
859
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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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What just sucked all of my battery?
I got 100% of battery when going asleep. When waking up, it was 23%. I checked the battery usage, but only thing I saw was that "Google" used 10% during that time. What the heck is going on ...
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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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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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45
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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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Is it best to charge battery only after completely discharging it? [duplicate]
Is it best, for battery life, to charge it only after completely discharging it?
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How can I stop Android putting an app in Battery Optimization mode?
I have an app (Calendar Alarm) that gives me an an alarm when an appointment is about to start.
I have put this app into "non-battery optimization" mode several times now.
After I do this it ...
- 101
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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 ...
- 111
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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 ...
- 119
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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 ...
- 323
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Samsung A33: Battery Discharge to 0 when Headphone Adapter was left plugged in overnight
After listening to music in bed, I closed all running apps on my Samsung A33, and forgot to remove the Headphone adapter (USB C to headphone jack from Apple), the battery was completely discharged ...
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314
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Query battery cycles count on Samsung running Android 12
How can I read the battery charging cycles on a Samsung running Android 12?
With the apps in the Play Store, I didn't find out anything. I also have access to a laptop with Windows 10 and a USB cable ...
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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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wired app showing in battery usage [duplicate]
When I checked my parents phone last night I noticed a wired app that I've never seen appear in the battery usage.....
Had the android robot with -5 under it.
When I click on where States open th app ...
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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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71
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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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110
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Does adding multiple user accounts on my android have any adverse impact?
I see Androids provide an option to add multiple user accounts to a phone. This is helpful when I have to lend my phone to family or an acquaintance, or to separate work apps and personal apps.
I was ...
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780
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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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285
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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 ...
- 297
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59
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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....
- 445
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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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53
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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
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1
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137
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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):
...
- 131
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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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281
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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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35
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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 ...
- 176
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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 ...
- 323
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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 ...
- 111
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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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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, ...
- 323
4
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1
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209
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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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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 ...
- 323
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19
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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.
...
- 323
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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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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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49
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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 ...
- 323
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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 ...
- 323
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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 ...
- 101
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49
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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 ...
- 11
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39
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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 ...
- 121
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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 ...
- 457
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532
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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 ...
- 11
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117
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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 ...
- 111