Questions tagged [battery-life]

Questions about Battery life (how long each charge last) or/and Battery Durability (how long until it needs to be replaced) should use this tag.

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Getting power saver to turn off at specified battery level

On my Android One plus 9T phone I seem to be able to set the level at which power saver turns on ( eg 15%) however it automatically only turns off at 90% charge level. Is there a setting somewhere to ...
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Does adding multiple user accounts on my android have any adverse impact?

I see Androids provide an option to add multiple user accounts to a phone. This is helpful when I have to lend my phone to family or an acquaintance, or to separate work apps and personal apps. I was ...
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Is it sensible to turn off the phone for charging?

I know that electronic devices, when not in use for a few hours and especially when charging, should be turned off. However, when I turn my phone off and plug it into the charger, it shows the "...
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Between fingerprint unlock vs double-tap to wake up, what consumes more power?

Due to past experiences with power buttons, I'm trying to almost not touch the power button (side key) except left with no option. So between these two alternatives of waking up a phone: Using a ...
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The cause for sudden battery discharge?

I've bought already used phone (XCover 3 VE) half a year, but I didn't use it much, now it became my primary phone so I wanted to test the battery (poor reflex on my side). So I turned off all ...
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How can I monitor phone battery through hotspot?

I use my phones hotspot to connect my tablet to the internet. I usually don't know how low the battery is until the phone shuts off because the battery is dead. Is there an app or some way to monitor ...
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1 vote
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17 views

Extremely inconsistent battery life without app usage

I'm using my Pixel 2 (non-XL) rather sporadically throughout the day, most of the time I just keep it in airplane mode with WiFi (and WiFi Call) enabled, except 1-2 hours outside, plus 30-60 minutes ...
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Disable power saving mode for WebView on Android 9

I have a Samsung Galaxy Tab Active2 (SM-T390) tablet with Android 9 and One UI 1.1 and the latest available updates. An app with an WebView looses connection after about six minutes of standby. I ...
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Android 11 October Security Update drastically drains idle battery usage

EDIT Ever since I installed the latest security patch available for my Phone (October 5 patch), there has been insane idle battery usage. More like 1% dropping sequentially whenever I'm sleeping It's ...
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How can I do low-power step counting on the LG G5?

Background information (you can skip this) The Sensor Detect app says that the LG G5 includes a "LGE Step Counter Sensor" made by "QTI" which uses about 0.18 mA of energy. "...
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recommendation for charging plan [duplicate]

Using Termux on an Android smartphone and a WiFi Smart Plug the phone can control its charging via half hour cron'ed termux-battery-status, MQTT and openHAB to control the plug. Termux hasn't battery ...
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Any way to disable the "Blank is draining the battery" notifications?

I get this little popup all the time on my phone: I can "Ignore for now" but it just comes back a few hours later. The thing is, I'm not running the "Amazon Alexa" app currently. ...
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Keeping phone plugged in vs. using a charger control?

I have an old, quite banged-up Huawei Y6II. I want to use it as a static device and turn it into a security camera, web server, wifi hotspot, etc. Is it okay to keep it plugged in all the time? Or ...
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Planned energy saving

Could I plan energy saving when I go to sleep? For example from 11:00PM to 06:00AM of the day after I am using Android 11 Samsung Galaxy A71
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How to cure Battery draining and lagging problem

Question How to cure Battery draining and lagging problem I have lyf water 7 ls-5504 mobile it's been rooted through super user to use link2sd and link apps. But before rooting it's have huge proble ...
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Charging control in Android without using any third-party apps

Is there any way to control charging in Android programatically without using any third party Apps? We have an Android Application which has to be installed at Client Location in Tab and the tab has ...
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32 views

Determine power usage for specific timeframe

Under battery usage, I can see “battery usage since full charge,” broken down by app (and, if toggled on, non-app phone processes). I’d like to see that breakdown but in a more specific timeframe (and,...
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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 ...
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Cant disable wifi multicast and constant arriving of data packets on rooted Android

Problem : I'm using public wifi in my college. (They won't allow alternatives). At least 40,000 students are using it regularly. I keep receiving data packets from the moment I turn on wifi even ...
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1 vote
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Reducing Tx_Power for mobile hotspot - hostapd.conf

I am using rooted Samsung J2 pro with Marshmallow 6.0.1. My mobile hotspot uses a lot of battery. And this battery usage is reported by Android OS process by Smart Manager. I have reduced the tx_power ...
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1 answer
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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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1 vote
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43 views

The powerprofile and systrace outputs are not consistent

I'm generating the PowerProflie file and the Systrace file to get the energy consumption of an Android Application, but I found that the number of cpu cores is different between the two files. I'm ...
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Making LineageOS even more lightweight

How can I minimize the power footprint of my LOS? My device is rooted and I have Termux. There I can run $ su # htop and see that the device is running 83 processes (!). These are the processes ...
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Is it possible for an Android alarm clock app to not turn on the screen when it rings?

Recently, I asked this question requesting recommendations for an Android alarm clock that does not turn on the screen when it rings on Software Recommendations StackExchange. The reason I do not want ...
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1 vote
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Does software update decrease device performance? [closed]

I’ve been using an Android tablet for a month, and I’ve just got a notification on an update for my tab for Android 11 or One UI 3 (not sure if they mean the same thing). I’m on Android 10. Based on ...
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2 votes
1 answer
234 views

DNS over internal VPN?

I'm currently renting a server where I installed PiHole and PiVPN. PiHole is a DNS sinkhole that I use for blocking ads, and the PiVPN allows all my devices thanks to OpenVPN to get all my traffic ...
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2 votes
0 answers
101 views

Does turning off cpu cores will actually save power?

My phone is using custom kernel that has cpu hotplug in it. The hotplug name is AutoSMP and it has max cpu (big & little) core that should be online option in it. Currently I'm using 3 + 3 core ...
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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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  • 141
2 votes
1 answer
53 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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1 vote
1 answer
59 views

Should I change the battery of my Samsung A7 (2018)?

My phone shut off completely a few hours ago. It was at 20% and somehow it jumped to 0% and shut off. I didn't know what happened so I just put it to charge. I had this phone for 2 years, if not 3. I'...
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1 vote
1 answer
901 views

How to check if a new Android phone/tablet has got no factory reset yet?

I would like to buy a factory-new tablet (Galaxy Tab S6) so I would like to check if the device has ever turned on (since the production date) and also how to make sure no factory reset has done yet.
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My battery life dropped from approximetely 20 hours to less than 15 hours, how to find who is responsible?

My Samsung Galaxy S20 battery lifetime was up to 20 hours per one charge. The I have probably installed some apps, and the time is dropped to less than 15 hours. The phone is clearly warm during the ...
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50 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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1 vote
0 answers
56 views

(Xiaomi Mi 9 Lite) Mobile data turns off automatically when screen is off!

I have an issue with Mi 9 Lite, when I lock my phone, mobile data turns off automatically after a short period of time, it will turn on as soon as the screen turn on, I tried to enable "Mobile ...
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1 vote
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147 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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1 vote
1 answer
77 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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0 votes
1 answer
110 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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0 votes
1 answer
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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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2 votes
2 answers
358 views

Reason of existence of An App named "-5"

I was trying to look at the battery usage of different apps and saw this weird app named "-5" on inspection it takes me to google photos which is weird since why will google photos use its ...
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1 vote
1 answer
113 views

How does Battery Management System work (at the hardware-interface level) ? And how is idle self-discharging of batteries handled?

I came across the following when I was reading up about fully drained batteries in phones: If the phone is OFF for a month, then it is probable that the battery has gone down to a point that the BMS ...
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1 vote
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Moto e4+ fast charging issues

My moto e4 plus is 2yrs old.Suddenly at 75-80% it's charging rate drops then after a while suddenly it charging very fast after that stoppage.can anyone tell me reason !please
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1 vote
1 answer
46 views

Is it possible to determine whether a purchased phone has a new battery?

I recently purchased a Samsung phone that was listed as "factory refurbished". Something I found on Samsung's website says that factory refurbished phones will have a new battery installed. However, ...
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30 votes
1 answer
9k views

Don't charge the battery but use connected power to run the phone

Answers to this question Is power consumed from battery to run the phone when charging? explain how charging while phone is in use does both - charging the battery and powering the on going activities....
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1 answer
56 views

Is it a bad idea to let your phone keep charging all the time?

I read somewhere that long periods of charging can be bad for the battery and the best level to keep your battery at is around 50%. Is this true? If it is then after how long will the battery show ...
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4 votes
2 answers
2k views

Understanding Samsung Power Settings

I'm quite confused about Samsung's "App Power Management" page. There seems to be several overlapping settings: Adaptive Battery - Limit battery for apps that you don't use often Put apps to sleep - ...
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1 vote
2 answers
644 views

How to make an Android smartphone actually go to sleep?

When I turn the screen off on an Android smartphone, I want battery life to be conserved. Thus, I don't want any third-party apps running in the background, and I don't want the device periodically ...
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1 vote
1 answer
220 views

Process "irq/288-wcd9xxx" draining battery, how to stop it?

I'm using a Fairphone 2 with Fairphone open OS, under Android 7, (build-number: fp2_sibon-userdebug 7.1.2 19.11.2 sibon-24df0be9), up to date. My battery loses systematically 50% to 90% overnight, and ...
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0 votes
2 answers
1k views

how to get battery percentage back in status bar, Android 7.1.1

I have a Samsung Galaxy J2 Pro running Android 7.1.1, and Samsung Experience version 8.5. How do I get the battery percentage into the status bar? I am sure it was there until yesterday (unless I am ...
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2 votes
2 answers
582 views

How to automate sending my current battery percentage to PC over the internet every 5 minutes?

I'm using Android 9 on my device, there are many times when I'm away from my phone and it is charging in a different room or someone else is using it, is there was a way to send over the battery ...
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0 votes
0 answers
173 views

Android 5.1 prevent USB Ethernet interface to go into sleep/suspend in AC loss (PM)

We are using MT8163 based Android device which is connected with TP-link based USB-Ethernet device over MT8163 USB host. Our requirement is to prevent the TP-link USB-Ethernet dongle to enter sleep ...
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