Questions tagged [charging]

For questions specifically about issues with battery charging or power supply.

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29 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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16 views

How to disable 'Slowly Charging' message

I am looking to disable this intrusive message that pops up. You can not proceed to do anything on the phone until you acknowledge it. To be clear, I am not looking for 'tips' to increase charging ...
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85 views

How to write to an Android system file?

Why is writing to /sys/class/power_supply/battery/status having no effect? Accessed manually via adb shell as root, eg echo "Discharging" > /sys/class/power_supply/battery/status does not ...
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1answer
32 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 ...
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1answer
66 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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9 views

HDMI Input and charging dilemma

I'm needing to display an HDMI signal on an Android tablet. I can do it using an HDMI to USB capture dongle and the USB Camera Pro app, however I am unable to keep the tablet charged while it is ...
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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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1answer
14 views

How to stop screen from coming on with intermittent charging

I know we have this very old question and answers How to keep screen turned off when plugging charger? but why isn't this implemented by Android? My scenario is that I use my phone for navigation on ...
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1answer
48 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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21 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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47 views

Recovering bricked Pixel 2 with drained battery

Bit of a weird setup but I have a Pixel 2 phone with offline charging disabled. Today I wanted to restore the factory image so I booted the phone into TWRP, wiped all the partitions. I then got ...
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1answer
41 views

Is a specific charger needed to utilize 25W charging?

I have a Samsung Galaxy S10 5G. Is it important for the charger and cable to have certain specifications to utilize the 25W charging capability?
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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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33 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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1answer
40 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?
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24 views

Galaxy tab charging dock stops charging when USB device is attached

I recently bought this charging dock by Brodit for my Samsung Galaxy Active 2 (v. 3.9.0) with Android 9: https://www.amazon.de/gp/product/B00UASMT2Y/. I was hoping to constantly keep the tablet ...
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22 views

Samsung Galaxy Tab 3 (SM-T210R) won't turn on or charge

I have a Samsung Galaxy Tab 3 and for years it worked very well until last year, out of a sudden, it stopped working. It didn't want to charge or turn on. When I plugged it to my PC, the PC wouldn't ...
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22 views

Is it possible to change maximum battery capacity to a lower value?

AccuBattery says my phones battery health capacity is around 80-90%. Android and all other devices naturally keeps charging to 100%, even though it will only be 90% charged. To me, this seems to be ...
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44 views

How can I charge Motorola One normally?

tl;dr: Every setup that I tried so far ends up with "Charging rapidly" or "Charging slowly" on my Motorola One. What kind of charger (or power source) and cable should I use in ...
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2answers
395 views

Phone won't stay off when charging Motorola Edge Plus on Android 10 and above

After getting a replacement phone from Verizon, the new Motorola Edge Plus will not stay powered off while charging, as the last one did. After looking on the forums, I enabled developer options, but &...
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23 views

Plug Android smartpone into PC without loading | LineageOS

I am using my main smartphone for developing Android apps and doing research. I set everything up and searched for a specific option under USB Preferences, when connected to my computer. As I don't ...
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53 views

What to do if my Samsung Tablet keeps restarting

My Samsung S5e Tablet keeps restarting almost every few minutes if I use it or not I have sent it in for repairs but when I got it back It still keeps restarting its just been over a year since I got ...
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39 views

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 ...
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1answer
847 views

Does 'Battery Protection Mode' turn on automatically?

I'm the founder of a company that deploys Android tablets into a hospital Making sure our tablets are plugged in is really important to us. When devices get unplugged we alert hospital staff to plug ...
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120 views

Suppress “battery charged, unplug” notification in Android 9

There are some older questions about this (2013 for 4.0: How do I get rid of the "Battery fully charged, unplug charger" popup screen? ; and 2010 with a 2016 answer: How to disable battery ...
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2answers
178 views

Asus Zenfone cycling in the starting of charging process

I have an ASUS ZenFone Max Pro (X00T/X00TD) It is/was discharged and powered off. When i plug it in for charging, it is cycling in start of chaging: vibration the icon of empty battery The bootloader ...
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27 views

Why is fast charging unreliable?

I have a variety of fast charge plugs and cables as well as an Anker power bank and a Nitecore NB10000. They support up to 3A @ 5V, 2A @ 9V and 1.5A @ 12V (i.e. 15W-18W). I believe the S10e is limited ...
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98 views

Making a device to simulate low battery early

I have device which is used commonly by a layman kin. She does not really understand, why spares the battery if we do not wait until it goes to zero. She thinks, the device needs charge only if it was ...
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1answer
239 views

Phone temperature sensor not working - Charging slow - How to fix?

Recently, something has happened to my phone's temperature sensor. It's showing ridiculously high values for the temperature (over 100 degrees), even though it's very cold. This has caused my phone to ...
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56 views

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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17 views

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 ...
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98 views

Screen on when charging on powered off phone

The issue My phone's screen is always on when I charge it while it is turned off. It displays this image: And the screen cannot be turned off. I believe it is not charging either, but I can boot it ...
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1answer
42 views

Android phone powers on spontaneously during charging

I want to charge the phone while it's powered OFF. But it automatically turns itself ON during charging. It may be 87% or 90% or 100%. I don't know the exact reason. Model = LG-K430n. I don't like ...
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11 views

can I use a USB-C to charge my kindle and still use the kindle to interrogate my add on system that uses USB 2 or 3?

can I use a USB-C to charge my kindle and still use the kindle to interrogate my add on system that uses USB 2 or 3? I am a mac guy so I am not so good with android devices but love my kindle as I ...
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1answer
145 views

Can I replace Huawei 40W supercharger with third party charger but still provide supercharging feature?

Can I replace the Huawei 40W supercharger with a third-party charger but still provide a supercharging feature? I don't know what's those fancy things, but electronic isn't rocket science, but I tried ...
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1answer
55 views

S10 draining over 10% battery per hour while idling

My phone is less then a year old and I had my Screen replaced by Samsung about 2 months ago.(they also changed the battery and aluminium body).So the battery is almost new. About a week ago something ...
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1answer
54 views

What can I do to slow down battery degradation of portable power bank for my Android phone?

I just got Inland USB-A 5,200mAh Power Bank w/ LED Indicators for my android phone. It has a one-year warrantee, which seems to tell that its battery might degrade significantly after one year of ...
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1answer
985 views

How can I re-flash stock firmware for my Nokia 6.1?

I've developed an issue since the last Android 10 OS update where the phone doesn't charge unless it's in 'USB Controlled by device' mode, which it usually fails to switch to. I'd like to try flashing ...
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35 views

Automatic boot when charging without root / fastboot [duplicate]

I have a Samsung Galaxy Folder 2 and trying to have it boot when the charging cable plugs in. The phone is not rooted (and probably not going to) and doesn't have fastboot (instead it has ODIN mode). ...
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1answer
49 views

Is it possible to reduce the charging current? [duplicate]

I'd like to reduce the charging current of my phone, because It gets too hot I am charging it overnight so it's more beneficial to charge it slowly. Is it even possible from a hardware perspective ...
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1answer
36 views

Reviving my phone after a small part of it (eg the processor) overheated

I tried to compress my 1.6GB video in the Media Converter app by exporting it to mp4(h264,aac) on my OnePlus 3 as per https://www.quora.com/How-do-I-reduce-video-size-on-Android. However, ...
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26 views

Smartphone not charging when turned On

Smartphone: Xiaomi Redmi Note 7s I have been charging it with Pixel XL's charger for 4 months. It stopped getting charged while turned on yesterday. If I turn off the device then it will take ...
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1answer
85 views

Dropped phone into water and shut down automatically after the logo is displayed

I dropped my phone(Asus Zenfone max pro m1) into water then I took the phone out from the water and turned off and cleaned the phone surface with a dry cloth. Then kept my phone in a pouch with ...
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1answer
706 views

Is it safe for the battery to turn on the mobile data all the time?

I usually turn on my cellphone Mobile Data & WIFI all the time because I don't want to miss SMS and Emails. I'm afraid the battery could lose capacity over time if I keep turning on the Mobile ...
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1answer
62 views

Can I use these chargers interchangably? [duplicate]

I happen to own two android devices, a Huawei P30 Pro and a Samsung Galaxy Tab S5e. Both devices came with a charger, the specifications can be seen here I'd like to charge both devices with one ...
3
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2answers
782 views

Bootloop and random restart issues in android (Gionee A1 plus)

My Gionee A1 plus started acting strange a month ago. It would often restart whenever I received any SMS notification and then boot up just fine. I tried using an earphone and keeping the phone in ...
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47 views

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 ,...
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1answer
199 views

Moto G6 not charging, not connecting via USB and battery indicator frozen at zero, not enetering battery saving mode

Here is how problem came about: I unlocked my moto G6's bootloader and fastboot flashed twrp-3.4.0-0-ali.img in it. I opened TWRP trough the recovery option in fastboot, and enetered my PIN, but TWRP ...
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45 views

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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472 views

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 >...

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