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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13
votes
2answers
25k views

Using Android phone without battery

Some Android phones have removable batteries, and others are non-removable. It is the battery capacity that makes the device alive for hours. Also, the device can be used while charging. For an ...
0
votes
0answers
39 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, ...
1
vote
0answers
14 views

Samsung Tab A6 won't leave battery screen or turn on

I'm currently having issues turn my A6 on, in that it simply won't start up. I have tried: Holding the Power and Volume Down button, Holding the Power button for 30 secs, changing cables, changing ...
0
votes
1answer
46 views

Meaning of two low battery screens on Acer Iconia tablet?

According to https://community.acer.com/en/t5/Android-Tablets/Iconia-tab-10-A3-A20-won-t-charge/m-p/513098/highlight/true, Hello, my tablet was working fine for a year and suddenly won't charge up. ...
0
votes
1answer
1k views

YouTube app holds a long wakelock. What app settings can I change to keep it from doing this?

I am using an HTC Evo 4g with Android 2.3.5 Gingerbread. I'm trying to deal with apps which keep my phone from entering sleep mode, and the YouTube app is a major offender. With downloaded apps, ...
4
votes
1answer
14k views

Where are the battery capacity files located?

Background My current device Huawei Honor 6 comes with a 3100 mAh battery. I was therefore surprised to see 3C Toolbox Pro report the capacity as 4000 mAh. I mailed the developer of the app and his ...
0
votes
2answers
2k views

Battery Status problem

I recently updated my Note 8.0 Wifi from 4.1.2 to android 4.4.2, and shortly after that rooted it (But kept the stock 4.4.2, NO custom ROMs or anything...). Of course, as I knew, the battery ...
0
votes
1answer
2k views

Samsung duos remove and re-insert battery makes battery life sudden drop

I have a samsung duos i9082 without root. the battery life drop 10% - 50% when remove and reinsert the battery. So my question is. is this a battery problem or devices or software? Does replace a ...
1
vote
0answers
19 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 ...
0
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0answers
20 views

How to get the battery status from an Android phone with Python connected to a PC via Bluetooth?

Is there a way to interrogate an Android phone with Python on a PC and/or Linux to get battery status while connected via Bluetooth?
0
votes
4answers
2k views

S4 Wont turn on unless removing battery then turns off after 2 seconds

So, my Galaxy S4 turned off randomly today during charge. I attempted turning it back on via the power button but it would not respond. Then I tried taking out the battery and replacing it, the ...
5
votes
1answer
2k views

Download Manager causes high CPU usage on Motorola Razr with stock Android 4.0

My Razr (Stock ROM 4.0) is very very hot. After some research I found com.android.providers.downloads is responsible, since it's using about 60% of CPU. I have tried killing it, and it respawns, ...
2
votes
1answer
2k views

Where is the battery animation called?

I have a tablet from China, it's a Q8H Allwinner. It is rooted, and I've browsed the internal storage for hours to find the battery animation, I found them at framework-res.apk... Now I want to find ...
0
votes
1answer
2k views

Moto G 2 (2014) Not Charging!

My phone is a Moto G (2014) XT1068. It has recently stopped charging for some reason. This morning it was charging and tonight, it decided that it would be a prick and not charge. Anyhow I tried ...
2
votes
2answers
81 views

If I install an aftermarket “Always on Display” app, will it cause excessive battery drain?

I am shopping for a new phone and it seems that my beloved notification LED has fallen out of favor, so I am willing to settle with Always on Display (AoD) as a second best. I have been reading some ...
1
vote
0answers
33 views

Is there a difference between disabling app notifications in-app vs. Android OS?

Is there any effective difference between disabling an app's notifications in the app itself vs. via Android's per-app notifications panel? I've defaulted to first trying to disable any notifications ...
0
votes
0answers
38 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 ...
0
votes
0answers
15 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 ...
0
votes
0answers
15 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 ...
1
vote
1answer
442 views

Idle device and inactive phone consuming too much battery

I just bought a brand new Zonda A450 with Android 4.4. I was quite surprised when the battery started to drain too fast. Even taking a photo with flash could take 3% of the battery instantly. From ...
2
votes
1answer
214 views

Help me save battery, BBS dump included

I got fed up with my Android battery life and thought I should use it only when really required. Hence, I installed a minimum number of apps: Runtastic, Runkeeper, GPS Status & Toolbox, ...
1
vote
0answers
127 views

Battery drain issue on idle phone, how to find out the culprit?

Overnight, starting from a 100% charge, all apps closed, even from a fresh reboot, screen of course off, my phone (Redmi 6) ends up with a ~90% charge. I know this is abnormal, as my previous phone (...
0
votes
2answers
3k views

HTC One (M8) blinking red notification light

So after replacing the battery in my One (M8) with a new one from eBay, the notification light just blinks orange when charging. When swapping back to the battery before replacement, it, at least, ...
2
votes
2answers
893 views

Why is “mdnsd” draining my battery and how to stop it?

This process (mdnsd) had been draining my battery for a few weeks. I have not been able to find a solution after a lot of search. I don't have any drone app, Facebook app or Firefox, although it's ...
1
vote
3answers
3k views

How can profile (log the charging and discharging current for some time period) my battery?

As the question reads, I want to log the current in milliAmpere or Ampere (both charging and discharging) over a period of time. Please note I am not asking about charging or discharging rate, but ...
1
vote
2answers
1k views

Can access Fastboot, but it isn't working. Software issue?

First of all, thanks for taking the time to read this. I know it's a long post, I'm just trying to be as detailed as possible. I've a Moto G XT-1032 that stopped working a couple days ago. It has ...
0
votes
0answers
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 ...
0
votes
1answer
5k views

Having serious technical problems / crashing on my Samsung i9300

I have a Samsung Galaxy S3 (i9300) that I've been using for slightly over a year. I am a rather heavy-duty user of the phone, and have used in intensively for that time. I do take care of the phone ...
16
votes
2answers
32k views

How does fast-charge work?

How does Fast Charge work? Does it actually charge your device faster, and if so, Is there a downside to using it?
1
vote
3answers
20k views

Cannot charge due to low battery temperature on Lenovo P780

My Lenovo P780 won't charge because the battery warning always pop up & says that charging is paused due battery's temperature is too low. I have checked the battery's temperature & it is ...
0
votes
1answer
30 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 ...
1
vote
1answer
35 views

Battery drains when phone is turned off

I have a used Samsung Galaxy S3 Mini GT-I8190. When I shut down the phone the battery still drains. The longer I leave the battery in the shut down phone the more charge it looses. Typically the ...
0
votes
1answer
864 views

How to recalibrate the OS for an external battery?

I recently bought an external non-standard 7000 mAh battery for my Samsung Galaxy S3 but the phone doesn't seem to recognize it. Is it possible that the phone needs to be reconfigured or recalibrated ...
0
votes
2answers
793 views

Karbonn Titanium S1 suddenly switches off

My Karbonn Titanium S1 smartphone switches off when I open the gallery, play any game, listen to music or do anything with the phone without connecting the charger. The screen starts to shrink and the ...
0
votes
0answers
132 views

Xiaomi Redmi 7 disable Battery saver notification

I have Xiaomi Redmi 7 with Android 9 and MIUI Global 11.0.3 After my battery goes to 20% and then after to 10% I am getting this notification to Turn on Battery saver. How can I disable it? I don't ...
2
votes
2answers
6k views

How can I turn off data when my phone's screen is off and only let data come back on once per hour or so to sync apps?

I have been using an app called Doze which turns off data when my phone's screen is off. I'd like to find a way that would turn off data when the screen is off but would turn on data once per hour or ...
0
votes
1answer
51 views

How do I totally disable my phone?

I've bought a very cheap Android 8.1 tablet (which has 2 sim slots) just to play about with. As it's cheap, the battery isn't wonderful and it has a very short life before it needs recharging. The ...
1
vote
1answer
889 views

Android system battery drain

My android phone has heavy abnormal battery drains coming from Android system. 2000mAh and above on a single charge! I know for certain this is a software issue and not hardware. Before I hit the ...
1
vote
3answers
14k views

Galaxy Tab 3 won't boot - dead battery?

I'm kind of disappointed, this morning I wanted to start my GT3 but I get this logo instead (sorry for the poor quality) : I've try AB testing with my Nexus 5 battery loader, both works on my Nexus. ...
4
votes
1answer
8k views

Samsung Galaxy Tab Pro 10 discharging even when connected

My Samsung Galaxy Tab Pro 10 (SM-T520) will discharge when connected. While the battery icon shows that it's charging, the tablet will still discharge, albeit more slowly than when not connected. This ...
2
votes
2answers
1k views

Is there any relation between charging rate and discharging rate?

Sometimes when I do not use the original charger but a different one it would take less time to fully charge the device than the original charger would do. But I can feel that discharging rate is ...
8
votes
1answer
47k views

How to set gmail sync frequency?

I want to know how often Gmail checks for new emails because I need longer battery life. How can I see/set this? I want to set it so that, for example, it checks for new mail every 10 minutes and ...
1
vote
0answers
31 views

How to increase the sample rate of the current measured from the Android kernel?

I need to monitor some applications power consumption of my Samsung A8, programmatically. I'm doing this by accessing the files: /sys/class/power_supply/battery/current_now /sys/class/power_supply/...
1
vote
1answer
870 views

Motorola moto 4g, battery drain, always high media server actitivity

I recently bought a motorola moto 4g, and I quickly noticed that the battery is going low very fast! With no use at all, it's going down 15% percent per hour... The mediaserver is always taking up 50%...
1
vote
3answers
8k views

will gaming destroy my phone battery? [closed]

I think games probably destroyed my Note 2 battery. I often play games for hours straight while charging. Last Sunday it was dead with horrible heat. Then I borrowed friend's mpj backup battery, ...
1
vote
1answer
939 views

My LG LEON battery dead?

I was charging my LG LEON and it suddenly turned off with a 0 percentage of battery, then when i tried connecting it to the charger it didn't wanna charge. I tried with five different chargers and ...
1
vote
1answer
2k views

Battery Status Indicator Error?

Okay so I have a very interesting story to tell.... Here is what happens... I charge my phone at night, wake up in the morning, pull it off the charger, about 9-10pm it drops to about 15%, which isn'...
0
votes
0answers
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 , ...
0
votes
1answer
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 ?
0
votes
0answers
22 views

Inaccurate Battery Consumption Metrics: Is This Behavior Normal? [duplicate]

I own a OnePlus6 running OxygenOS 9.0.9. I noticed that lately my battery doesn't last as long as it used to. I used the Battery Monitor app to check if there's anything suspicious. This is what I ...

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