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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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9 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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4 views

Multiple chrome tabs impact

I am interested in finding out how much impact on battery usage,data usage and memory/ resource drain does occur on my Android 8.1 (Oreo) when I have multiple instances of apps ( facebook 3 pages ...
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0answers
12 views

Battery was once swollen, but is now normal

My tablet (specs below) has a swollen battery, but is now normal (back to its normal size). It was swollen many years ago, so I just left it. Now, I just found it and it is now unenlarged. I don't ...
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0answers
22 views

How can I fix a charging problem on Moto G5 Plus?

A Moto G5 Plus device (Android 8.1.0) was charging and performing normally with a healthy battery response. One morning, instead of being at 100% (expected after charging all night), the phone ...
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0answers
20 views

Where can i locate the file responsible for activating charging in my jellybean and kitkat android?

I have Tecno H3 running android 4.4.2 kitkat and Tecno P5 running android 4.2.2 jellybean. I want to completely disable charging at 85% and re-enable it at 50% without rebooting the phone. So i went ...
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30 views

Can Android stay in doze mode even with an active screen in last Android version?

First of all, sorry if this question doesn't belong here, I wanted to ask on meta if I coudld answer this, but I'm unable to. Anyway I think it fits more here than in stackoverflow. If it's not the ...
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1answer
36 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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0answers
17 views

Why does my Samsung Galaxy S8 Active no longer “Fast-Charge”?

I bought a refurbished Samsung Galaxy S8 Active in excellent condition about 6 months ago, and it came with the standard manufacturer-provided power adapter and cable for charging (Model: EP-TA20JBE, ...
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1answer
21 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 ...
0
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0answers
171 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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0answers
28 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 ...
2
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1answer
79 views

What does the charge counter in battery indicates?

I have used the adb shell dumpsys battery command on my phone. It delivers the following results (posted on the image). Most of the terms, I can understand but not the charge counter. What does it ...
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0answers
19 views

Asus not able to charge or boot

I have a strange problem. My device is Asus Zenfone Max ZC500KL. I have a LineageOS (forgot the version but Android 7 or 8 I think) on it. The battery is drained and at 0%. And as soon as I plug it ...
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0answers
41 views

How to make active the “USB connection mode” that has been Greyed out since oreo?

I purchased a new Sony Xperia X Compact a while back and ever since the Oreo update the trouble began. It drained the battery constantly and would not connect to any computer with any type of usb ...
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0answers
18 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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0answers
18 views

problems with S6 after having battry replaced

Took my Samsung Galxy S6 to a kiosk in the mall to have the battery replaced because my battery was discharging pretty quickly during use (only lasting about 2 hours). I charged the battery fully when ...
2
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0answers
38 views

Notification if battery drains faster than N% per hour?

Is there any app or other tool to trigger a notification if the phone's battery drains faster than a certain amount per hour? Note that I am not looking for notifications about apps using too much ...
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1answer
35 views

Android and battery issue

Recently purchased a new cord and box. It is now flashing on/off on the battery feature. Help It is also not holding the charge
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0answers
18 views

Galaxy S7 turns off suddenly

Yesterday I noticed that my s7 was turned off. I was unable to turn it on again until I plugged it in charge and then strangely noticed that it was not on very low battery (even if it was relatively ...
0
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1answer
20 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 ...
1
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1answer
36 views

Phone turned off for empty battery. Now it gives “No command”

My non-rooted phone (Morotola MOTO G5s Plus, bought just 2 months ago) just reached the 1% battery and automatically Powered Off. I charged it for some hours. Tried to turn it on but just the flash ...
0
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1answer
143 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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0answers
12 views

Phone turns itsself off and will not turn back on

Since I installed Android 9 my phone will randomly power off at any amount of battery, and will not power on unless connected to a power supply. It tends to show the Google logo, and then power down ...
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0answers
16 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 ...
0
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1answer
232 views

Does Huawei's super charging affect the battery?

I have a Huawei P20 pro and it came with a "super charger" that can take full charge the phone's battery really quickly. Sometimes in less than an hour. I wonder if this affects the battery's ...
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0answers
22 views

Nokia 3 device not starting just boot sounds in a loop?

After flashing nokia 3 firmware my nokia 3 device battery started to drain and when it gets lowered to 10% the phones dead and only boot sounds and vibrates. The device is constantly boot vibrates ...
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2answers
87 views

Macrodroid: I want a repeating alert when battery is less than/over than x%

I want a repeating alert when battery is less than/over than x%. I have a pair of alerts (Using MacroDroid) that are triggered by a battery level change. One of less than 35%, and one of more than 85%...
2
votes
1answer
66 views

Is my battery damaged?

I have an HTC 10 running stock Oreo with Sense, not rooted and S-ON. I bought this second hand and don't know whether the issue came up as the phone was upgraded to Oreo, or whether it had always been ...
0
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0answers
280 views

How to add apps to “Ultra power saving” mode (UPSM)

The Samsung "Ultra power saving" mode is very useful to increase battery time, and when you are on an emergency. However, functionalities are too much limited. At least I miss note taking app and ...
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0answers
26 views

Is the phone ONLY powered by external power (wireless charged) when battery reports full? [duplicate]

I read conflicting reports so i am asking this for 100% clarification: This the scenario: Lets say im an Uber driver and I need to have my phone ON all the time ( Waze, Google maps, etc ). Its on a ...
2
votes
0answers
34 views

Android phone plugged into charge 24/7

I currently have an LG E440 (non-stock ROM) plugged on charge 24/7 (connected to mains outlet, not PC) as it runs several Tasker-based routines which need to be seperate from my day-to-day phone. ...
2
votes
1answer
39 views

OnePlus 3 repair issue [closed]

The screen on my OnePlus 3 phone was beginning to peel away from the bezel. There was already a noticeable separation all the way along the top, and the problem was spreading downward along the sides....
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1answer
42 views

Battery shuts down at 25%

I've read that battery calibration apps are only a placebo effect and they do nothing. Is this true? What to do if your phone suddenly shuts down at 25%?
2
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1answer
395 views

How to make phone boot automatically upon battery insertion (unlocked bootloader and root: yes)?

By battery insertion I mean current flowing on the battery pins, not the micro USB port. Description The phone in question is a Samsung Galaxy Xcover 4, the bootloader is unlocked, and I have root ...
0
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1answer
24 views

Android battery monitoring method

Android phones powered by a constant 4v DC external supply (no battery) still show battery charge diminishing to low battery warning. Switching the mains off and then back on and restarting the phone ...
1
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2answers
1k views

How do you view battery usage on Android Pie?

In old Android versions, I would commonly go to view my battery percentage in the options to make sure that none of the apps running in the background were burning out the battery. In Android Pie, ...
1
vote
2answers
300 views

Overheating device with random apps spiking CPU usage

Few days ago my phone has started overheating and burning through the battery like crazy. I don't use it too much, and it used to last 1.5-2 days, now it's dead in 6 hours. I've installed System ...
1
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1answer
59 views

Change battery meter behavior

I heard that charging li-ion batteries to less voltage value heavily increases number of (charge-discharge) cycles, while decreasing phone work time(energy return from charge) only for a little. ...
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0answers
27 views

Keep android phone running for days

This is our situation: We have an android tablet that must run some stuffs for longer than one day (running videos, musics or other). For this purpose we attached our tablet to an external battery ...
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0answers
119 views

How to optimize all my apps in “Battery Optimization”?

I have xiaomi mi max 32gb -Multirom 8.4.26 I make all my apps "battery optimized" except these apps: (Greenify+amplify+powernap+Launcher+Appops+Magisk+ Xposed). But after rebooting my mobile, apps ...
0
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1answer
27 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 ...
1
vote
1answer
394 views

Difference between system files charging_enabled vs battery_charging_enabled

I have a oneplus2 and I need to know the difference between charging_enabled vs battery_charging_enabled files present in /sys/class/power_supply/battery I am using an app called Battery Charge Limit ...
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0answers
32 views

Is battery temperature reading, dependent on the ROM that is installed on the phone

On my original Android installation, the battery temperature was 31-37°C depending on what I was doing. Now I've installed a custom ROM and the temperature is usually 35-41°C. This 4°C difference is ...
0
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0answers
25 views

Is this normal? My Samsung Galaxy S8+ went from 100% to 42% after 12 of 14 hours of little to no use

I mainly just used it for NFC pay and messing around with bixby/google assistant for like max 10/15mins. Samsung power saving mode has been on the entire time. I haven't had a new phone for a long ...
1
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0answers
250 views

How to make Battery Saver Mode settings permanent?

And I have set my Battery Saver Mode settings as follows: $ adb shell $ su # settings put global battery_saver_constants "animation_disabled=true,vibration_disabled=true,adjust_brightness_disabled=...
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0answers
34 views

Phone dying at 23% charge

I changed the battery of my OnePlus one (original and new, from EBay). Everything went well, the new battery seems to do its job. But now my phone keeps turning off and vibrating at 23% charge.... If ...
0
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1answer
249 views

Prevent disable power saving while charging [root]

When I plug my phone to solar cell cpu optimisation turns off and the speed of discharge increases severalfold. How to prevent cpu always on when phone charging? Phone: Rooted Samsung Galaxy S III ...
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0answers
22 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. ...
0
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1answer
39 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 ...
0
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1answer
1k views

Stop Android from killing Runtastic

Runtastic is an app for tracking the paths you ran, how fast you were, etc. It worked great for me for many years but almost 2 years ago started crashing on virtually any run. A few months ago, I ...