Questions tagged [battery]
For questions related to batteries on Android devices. Questions about battery life should be tagged with [battery-life]
333
questions with no upvoted or accepted answers
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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 ...
- 171
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2k
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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 "...
- 111
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344
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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 ...
- 310
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34
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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 -> ...
- 443
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154
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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,...
- 111
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630
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Reading battery level/voltage via USB port
I'm interested in creating a device that needs to externally monitor the battery level or voltage of the phone via the USB port. I haven't had much experience with the inner workings of Android, but I ...
- 1
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198
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How to keep running Android tablet with dead battery
I‘m using Android Galaxy View tablet as photo-frame, integrated in the wall with AC adapter connected constantly 24/7. The problem is the battery inside tabled dies each year. And when the battery is ...
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27
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Is it possible to keep the user data with a smartphone that boots to the data wipe menu?
My smartphone turns on without passing the OS loading screen, then loads the recovery menu (Redmi-Recovery 3.0). I can't turn off the device, I tried waiting for the battery to run off, charge it and ...
- 153
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1
answer
64
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Telegram does not recognise account after being offline for almost a week due to battery failure
On Sunday, 13th September 2020, the battery of my Motorola Moto G5 broke down and I ordered a new one. Today, on Friday, 18th September 2020, it finally arrived and it works just fine. Several errors, ...
- 115
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333
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LG G5 stuck with screen showing a picture as if the battery is not attached
My LG G5 is stuck with a screen showing a picture as if the battery is not attached. I don't know what is the reason.
If I remove the battery for a while and reattach it, it works.
I tried to search ...
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425
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automatically power on android when charge is 20% or 10%
I know its duplicate on Power on when charging but only when battery level is greater than 20%
but it seems that question has no answer and also android version has changes a lot , I am on Android 10 ,...
- 101
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64
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How would one simulate a charging experience on a real android device?
I possess a Samsung Galaxy S8 with Samsung Global Goals installed. The app allows you to donate based on ads viewed during the time the device is charging. Would be possible to essentially 'fake' the ...
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Android control battery charge programmatically
I'am using a Linage Android image (rooted) to control the battery charge and discharge with the commands:
Charge:
echo 0 > /sys/class/power_supply/battery/batt_slate_mode
Stop charging:
echo 1 >...
- 101
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58
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High battery usage (no wifi no apps no wireless)?
I've noticed that I lose about 20% battery each hour while my phone is unattended and offline. I check the battery settings and find that no apps are running.
The phone is rooted, and I'm wondering ...
- 639
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51
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Getting data of phone with dead battery
I have to get data off an old Zuk Z2 Plus that was working when it got replaced by a new phone and left lieing around for a year or so. Now it does not boot any more. When I plug in power, the screen ...
- 321
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4k
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Huawei P30 Pro I can't set sleep mode to never
I just got my new Huawei P30 Pro and I am not able to set sleep mode to never. Maximum option available is 10 minutes. My battery mode is correct and it is set to "highest performance" so without any ...
- 101
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29
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Phone shuts off in 3g
I have a Moto Z2 Play with Android 8.0.0, about 3 years old. Whenever I go out of range of 4g (to 3g), the battery goes from 100% to 80 or 70 in a couple minutes and then to single digits very quickly ...
- 213
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1
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1k
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What is the standard operational battery temperature for the Note 9?
Bought the phone a week ago & today it seems to be running slightly warm just surfing sites in Chrome. Downloaded a battery app and see that the battery temp is at 32 degrees Celsius constantly ...
- 1,035
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1
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2k
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Battery icon has a question mark in it
I checked a lot of forums, like a lot, but no one had my exact problem. I have an ASUS Tablet with Android 4.2.2 and the battery icon in the notification bar has a question mark in it. At least when ...
- 1
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167
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Android 9 "battery fully charged" icon flickers: What does it mean?
With my Samsung S10e phone fully charged, when I unplug it from USB then re-plug it in, the "battery fully charged" behaves like this:
appears and disappears a few time quickly
stays visible for 5 ...
- 5,266
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15
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Having trouble powering up my phone with another power source
I am having a bit of trouble powering my phone I got a Lenovo A7000 plus which is the same as K3 Note version and this phone uses BL243 battery
Here is some information about the battery
Typical ...
- 1,323
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1
answer
26
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Really strange battery issue?
So, I don't have a picture, but my Android phones batter is on the fritz. At first it just started draining quickly so i checked if I had any apps that where draining it quickly but I didn't have ...
- 1
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161
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What is correct way to calibrate battery?
I've watched videos and referred some random sites.
But I'm not sure if these steps are correct.
I used battery calibration app but that doesn't help.
I'm using Asus Zenfone Max Pro M2.
Running ...
- 175
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25
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New Samsung Note 9 battery charger compatibility
I just bought a new Samsung Note 9 (Exynos 9810). Little did I know that the model I ordered was the EU version and not the US version, so the charger I received was unusable with any of my power ...
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1
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2k
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How to turn off ultra power saving mode that was enabled for Huawei Android while it was on low power?
My Huawei Android was on low power and it proposed to turn on ultra power saving mode. I accepted it. Now I have connected the phone to the charger but I can not enable other power modes. I am going ...
- 135
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1
answer
617
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Leaving phone plugged in all the time?
I have a spare OnePlus One that I use for home automation stuff (RM Plugin, Tasker, etc.) I leave it plugged in all the time. Sometimes the phone does get quite hot. Just today, wanting to do more ...
- 101
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1
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131
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Power on when charging but only when battery level is greater than 20%
I have recently tried to fit a tablet into my car and I came across a problem with waking up the device
without using the power button. My solution is to boot the device whenever it is charging, but
...
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534
views
Umidigi F1 battery percentage
I recently bought a Umidigi F1 smartphone, and I can't figure out how to enable battery percentage to always be displayed in the notification bar. If I go to Settings -> Battery there's no option ...
- 101
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525
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Battery charge drops very quickly while internet connection is on
There are many questions like this, but mine is slightly different from those.
I am facing these weird problems with my phone, which are beyond my calculations:
My phone's battery charge drops very ...
- 602
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156
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Android smart phone wont turn ON
When I try to turn On my LG L7, it shows
Device temperature too high or low. Please move to another place to charge.
And it wont turn ON.
It started after I tried to measure voltage between the ...
- 101
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1
answer
28
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Note 8 dies when battery is drained completely
the samsung galaxy note 8 dies when battery is drained completely and it wont start or charge unless the battery is pulled and charged and pushed back again.
Why this happens and is there any solution ...
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1
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1k
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Is there any way to mass background restrict app battery usage?
My Pixel 2 has been experiencing severe standby battery drain (last night it went from 95-30 while I slept), and I'm pretty sure it's one of my apps' faults since it doesn't happen when I reboot the ...
- 26
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44
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How to reduce power consumption? - Honor 7
so I have an honor 7, had it over 2 years now. It has seen better days, I need a new phone however don't have the money as of yet. The phone must always be connect to a charger, using a fast charging ...
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26
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How to know power consumption at the moment?
From time to time my Samsung Galaxy S7 is starting to consume a lot of power, turns hot and eats 10% of charge in minutes.
If I have less than 10% charge, it kills itself even if on external power.
...
- 559
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65
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Samsung phone charges poorly, periodically
My Samsung S8+ has started having periods when it does not keep up 100% charging when connected and in simple editing usage. If I leave it idle it charges slowly and the "charger beep" occasionally ...
- 849
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82
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Restart charge from powerbank on rootet phone
A have rooted android 4.3 device and charge it from power bank. Charging stop after 100% and not continue after phone discharged until i unplug and plug again usb connector or push butoon on powerbank....
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1
answer
85
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Does the average cellphone battery protect against overcharging or deep discharging?
It's known that Lithium Ion batteries are damaged by overcharging or deep discharging. While I've seen an Xposed module which prevents the phone from charging the battery above 90%, I'm wondering if ...
- 101
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1
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28
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Moto G4 Play Churning Through Batteries
I have a G4 Play which I used the @#(* out of for nearly a year, until I dropped it into the toilet for 2 or 3 seconds before getting it out. The battery and SIM fell out and I put it in rice for the ...
- 1
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0
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822
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Shell: get battery voltage_now if power were not connected
I am trying to make my device stop charging (echo 0 > /sys/class/power_supply/battery/charging_enabled, the easy part) when the battery's voltage reaches 3920000 µV.
Using cat /sys/class/...
- 121
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232
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Samsung Ace 4 Unable to charge message, but it does still charge
I have a problems with my phone. The phone dropped and since then I got an issue with charging it. When I plug in the charging cable I get the following message:
"Unable to charge. Charging paused. ...
- 101
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86
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Is there a way to detect if there is a power management issue with an android phone?
Is there a way to detect if there is a power management issue with an android phone?
I'm rooted on KitKat if that helps.
The phone in question is a galaxy note 4 if it makes a difference.
The ...
- 453
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79
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How does Android keeps track of how much battery each specific apps used?
How does Android keeps track of how much battery each specific apps used?
For example, if you go to battery usage on android phone, it will say something like:
Display 70%
Whatsapp 25%
Browser 3%
...
- 1
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80
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What's the problem with my battery?
Well some people here have came across this question I posted few days ago. I want to inform them that I had to reflash my phone (and I'll edit the details there as recommended by @Izzy)
Device: ...
- 123
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1
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314
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Phone shuts down at about 30% battery. When booted back up, it's at 1%
I'm having weird problems with my phone. I'll be using it normally, but at some point during my day, my phone is gonna shut down by itself. When I open it back up, the battery is at 1%, when not even ...
- 241
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1
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124
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SIM card detection and Battery Drain - MI Redmi Note 3
My MI Redmi Note 3 is not detecting the SIM card and the battery is getting drained in 15 mins simultaneously. Cannot connect to Wi-Fi too. Any solution?
0
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1
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1k
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Battery slowly charging on Tab S
I have a tablet Samsung SM T-805 (Tab S 10.5"). Also I have Samsung A5 2016 phone and original Samsung adapter (2A 5V).
I had custom OS installed on my tablet. At some moment it became to charge ...
- 101
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1
answer
129
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How should I disable wave animation
I have seen in my device running Lollipop that, when charges get below 15% the device get into Battery Saver mode, in which all the animation of the Android get disabled (like, Wave animation).
So, I ...
- 21
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2k
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FTM screen cant remove battery
my phone says FTM it suggests taking the battery out but I cant remove my battery so now what do I do ?
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34
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Battery misinformation
I have a Droid Turbo (called Moto Maxx here in Brazil) which started to show a strange behavior. With normal use, its battery decreases til 53% percent, and the phone power off suddenly.
When the ...
0
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1
answer
313
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Music Players with Equalizer Almost Killing Battery on nubia
It's a nubia Z9 max Elite (NX518J) equipped with Qualcomm's Burndragon 810 SoC running nubia's stock ROM.
I just installed and tried out Poweramp and it's amazing. However my phone got hot ...
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