Questions tagged [battery]

For questions related to batteries on Android devices. Questions about battery life should be tagged with [battery-life]

295 questions with no upvoted or accepted answers
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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 ...
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29 views

Battery drained

Since 2 days ago my phone can not last more than 12 hours in airplane mode. The battery is drained by something. adb shell top shows that system_server is using 100% of CPU. adb logcat | grep 1577 (...
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34 views

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 ...
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95 views

My LG G5 battery is stuck inside the device and I have a frozen 'Firmware Update' screen. Please help

My LG G5 phone is stuck on a screen saying 'Firmware Update'. It has been at 0 percent for hours now and there is a code that says 633A B50. I would have tried to remove the battery, but the bottom ...
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28 views

Sony Xperia XA1, overcharing battery damage?

My cell phone is a Sony Xperia XA1 and it has Android 8.0.0 I think that when I got the phone the manual might have said that the phone has built-in protection from overcharging. But I am not sure. ...
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728 views

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 ...
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586 views

Is it possible to boot a Android smartphone without battery with charging wire on?

Problem The title of this post seems a funny challenge. But frankly, there are a lot of worthy points involved in this question. If a Android phone support rapid charging. If its battery is removed, ...
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20 views

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 ...
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525 views

Phone stuck at 0% battery

I have a Moto G phone. I'm using LineageOS. Yesterday I notice my phone went dead. When I press power button, a white light in the camara flashes three times, which I understand to be no battery. It ...
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21 views

How dose a phone know when it has a battery in it or how to make it think it has one

Im trying to game on a samsung galaxy s7 edge without a battery on it but it just turn on shows a logo and then turns off again i think it knows that there is not a battery inside so if anyone knows ...
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29 views

What is the messaging_service_work_wakelock?

I have recently started to get a bit of battery issues so I decided to install BBS and have a look at the partial wakelocks. One thing which stood out from the dump was that while the rest of the ...
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21 views

No package even after package installation

After viewing the YouTube app that came preinstalled in my Android TV Box (Android 7.1.2 OS) for about 6 hours without any problems, now when I launch the YouTube app I get "The installation package ...
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341 views

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 ...
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22 views

Abrupt drain of battery

Here is screen shot . Is it normal , or should I go to service center ? My previous phone had much less sloppier curve . When I bought the phone I charged it upto 100% and then started using it , ...
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16 views

My 'Android System' and 'Android OS' draining 40% of used battery

My mobile randomly switches off and on automatically once in a day. Also it gets cooled while charging normally(not fast). I am using lyf F1s with android 6.01 I have used:  safe mode Greenify App (...
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28 views

Is it possible to show battery level for paired Bluetooth devices in Android 10?

I wonder if there is possibly to show battery levels for paired Bluetooth devices in Android 10?
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326 views

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 ...
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26 views

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 ...
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7 views

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 ...
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21 views

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 ...
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45 views

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 ...
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23 views

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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1answer
587 views

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 ...
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96 views

How to take battery out of phone

I want to take the battery out of my LG phone, but how do I do it? Having problem with it being stuck on a Firmware Update. It is only 1 year old. Or should I take it to the AT&T store to have ...
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11 views

Can you judge a battery by idle up time?

Is how long a pixel phone lasts when idle an indication of the battery health. For instance, is the graph below a reliable indication that this particular pixel xl has a healthy battery?
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225 views

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 ...
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1answer
51 views

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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482 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 to ...
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61 views

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 ...
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70 views

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 ...
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1answer
22 views

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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1answer
596 views

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 ...
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87 views

Phone won't stay on

Ok my question is regarding my lg V10 smart phone. Everything works great on it, but it is not useable or doesn't even turn on and stay on unless I've got it plugged in. Its 100% fully charged but as ...
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34 views

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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24 views

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. ...
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44 views

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 ...
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67 views

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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1answer
76 views

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 ...
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1answer
24 views

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 ...
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343 views

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/...
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200 views

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. ...
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48 views

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 ...
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1answer
36 views

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% ...
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69 views

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: ...
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1answer
122 views

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 ...
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1answer
115 views

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?
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1answer
671 views

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 ...
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3k views

Cell Standby draining 71% of battery?

I have Droid Turbo I am having issue with battery draining about 70% by cell standby which is a huge percentage . Of anyone have issue same want to share. Thanks.
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80 views

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 ...
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1k views

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 ?