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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.

1
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1answer
26 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
9 views

Can I use large TV as a viewfinder for 4 smartphones recording video at the same time?

Bonus would be to have the screen of the phones off while recording and the ability to the on the LED light on each phone as needed I am recording something in a room, and I need multiple angle and ...
0
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1answer
107 views

Schedule power off/on in 8.1.10 Oreo

I just got a new 'phone running Android 8.10 Oreo, and I can't find the schedule power off/on anywhere. Has the feature been removed? If not, where can I find it; I realize that this might vary by ...
0
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1answer
37 views

Do Samsung batteries actually charge to 100% capacity?

My understanding on Li-on batteries is that they don't like to be charged to 100% capacity and that it can prematurely degrade the battery. Something to do with voltage increasing and heat at the last ...
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0answers
9 views

Experiencing sudden battery drop after screen replacement

I have a honor 9 lite after screen replacement battery chargers normally to 45% then within minutes goes to 100% and drain normally till 50-60% then it become 0 or about 20% instantly. I think maybe ...
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0answers
21 views

CPU throttling during Web browsing for battery preservation - counterproductive?

The power saving feature in Android (I'm mainly familiar with Samsung phones so this might not apply to all brands) throttles the CPU in order to save battery. If the phone is being used for Web ...
0
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1answer
11 views

Nexus 9 WiFi tablet permanently in awake state

I've recently been observing heavy battery drain during idle periods on my Nexus 9 tablet. The key here appears to be the awake status of the tablet. The left hand side of the picture shows a solid ...
0
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1answer
21 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
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1answer
76 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
15 views

Battery drain via Cell standby? [duplicate]

So, i just did a custom ROM on my Nexus 5. After a few days of using it with NO problems, cell stand by suddenly started eating 161% of my battery. What happened? This phone is not connected to any ...
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0answers
21 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 ...
0
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0answers
33 views

Battery drain by 'miscellaneous'

Hello Stack Community, recently I see a weird battery drain by something my phone identifies as 'miscellaneous' or 'other' ( called 'Sonstiges' in the posted picture). I have no idea what it could be ...
0
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1answer
63 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 ...
1
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1answer
61 views

Accessibility turned back off - how to keep it on?

I'm using the app 'Automate', in order for it to work I have to turn it on in Settings/Accessibility: But after a short time I doesn't work anymore and it's back on 'off' again. I think it may have ...
0
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0answers
19 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....
0
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0answers
166 views

Battery drain and bad mobile-data Sony Xperia Z5 compact Nougat 7.1.1

I charge my phone in the evening and have it turned off over night. So i turn it on in the morning with 100% battery. However after the 7.1.1 update the battery life has gone to shit. I used to go ...
0
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0answers
33 views

My S4 is acting up, Battery to blame?

So I have an issue with Keeping the phone on. I guess I should break it down into charging vs pure Battery as I can sometimes do a poor job of explaining things properly. Note: the screen glue is worn ...
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0answers
28 views

Simultaneously charging a phone and reading data from usb data pins

-Dear everyone, I'm working on a project which is a portable solar phone charger. Solar panels charge a battery, and the battery charges the phone through a usb cable. On the phone, I will make an ...
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0answers
44 views

Xperia E5 overheating and losing charge very rapidly

I've had an Xperia E5 for around 1 and a half years now. I had no problems with the phone whatsoever, it held charge for around 3 days under my usage but suddenly, four days ago it just became really, ...
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0answers
15 views

auto-brightness vs dimmer apps LCD screen

I just bought a Sony Xperia XA1 Ultra which is a nice phone in general however the default lowest brightness is still very bright. I solve this issue either by activated integrated auto-brightness or ...
0
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0answers
255 views

Why “unmonitored apps”? How to monitor app's power usage without restricting it?

I want to allow a certain application to run on background even in power saving mode (because I need timely notifications). I guess the only (?) way to do it on Android 7 is: Settings -> Device ...
0
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0answers
146 views

Cannot add gmail to unmonitored apps (battery usage) to get notifications in battery saving mode

I want to have instant Gmail notifications even in battery saving mode (which typically blocks apps from background CPU/network usage). I found these amazing instructions for Android 6, however when I ...
1
vote
1answer
385 views

Thousands of NlpWakeLock entries eating through my battery when on WiFi, but Location Services are off

I get several thousand entries a day of the NlpWakeLock under Google Play Services (I'm using Wakelock Detector Free). It's draining my battery significantly. I have found it occurs when I'm connected ...
1
vote
1answer
45 views

How long will battery last, assuming no usage

Short question: How do I find how long my battery will last, taking into account the current settings (Airplane mode, Battery saver, etc) I have enabled, and assuming I do not use it? Detailed ...
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0answers
191 views

how to solve an S7 battery drain, possibly the OS itself after latest AT&T update

After an AT&T update, my Samsung Galaxy S7 Active battery rapidly drains while using the device. Even on the charger the battery level goes down, just not as fast as when not on the charger. The ...
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0answers
125 views

Motorola Nexus 6 overheating, battery draining fast

I've had a Moto Nexus 6 for quite a while now, but last night when I picked it up for a moment it was hot enough to almost blister my fingers and uncomfortable to hold. Removing it from the charger ...
0
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1answer
62 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 ...
0
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3answers
2k views

How to limit charging to 60%

My UleFone Armor 2 has 4700 mAh, but I would like to limit it to 60% to delay away the moment where the battery dies. How can I limit the charging to 60%? Lenovo ThinkPads have a built-in feature ...
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0answers
19 views

Kindle fire no longer keeps a charge?

So ... I have a kindle fire 7 (2017) and it is about 3 months old. However, for about a week I have noticed something odd. When I plug it in to charge it either doesn't register the charge or will ...
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0answers
12 views

Some of my phone's app are not responding and my phone freezes to much

I have a Tecno mobile s1 phone freezes when I try to enter into an app and some time I receive a pop up message (app is not responding; do you want to close it: wait/yes). I need your help in solving ...
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0answers
46 views

Kfhd7 battery indicator stuck at 0% but battery still fully charges and works

So this is a problem that I have never faced before. I recently installed a custom rom and kernel for the kfhd7. Everything seemed fine for a fews days until one day, the battery was at 0%. The kindle ...
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0answers
25 views

Make better Android battery life bringing processor frequency below

I might want to know whether it could be conceivable to utilize adb (Android Debug Bridge) to advise the telephone to bring down its CPU max freq. I'd get a kick out of the chance to utilize less ...
1
vote
1answer
25 views

On Android 7, when using a TTS engine, would power use show for the engine itself or the app using it?

For example, would power use be attributed to a navigation app or Pico?
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0answers
227 views

Understanding Excessive Battery Drain on Note 8 (Nougat 7.1.1)

I'm suffering from excessive battery drains on Note 8, Nougat 7.1.1. The battery drain is excessive when on idle mode/when the phone is asleep. I have installed BetterBatteryStats (gave it all ...
1
vote
1answer
670 views

What resets the battery stats

I'm looking at the "Battery" section under "Settings", and there's two major sections: a graph that shows how full the battery has been over some period Which apps have used the most battery power ...
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0answers
20 views

presumably faulty battery level reading in Android 6.0 on an LG G4

I have been recently experiencing battery level drops, and to my understanding my observations may have not been documented in the same way earlier by other users. The phenomenon is similar to what ...
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0answers
23 views

Phone only turns on when it's plugged in but then works normally

The problem regards a cheap 5.1-based Android phone, manufactured by a company named Manta. A few days ago it randomly shut off on its own and it was impossible to turn it on because it got stuck on ...
0
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1answer
17 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 ...
1
vote
1answer
67 views

Change battery percentage at which phone turns off

I'm trying to completely discharge an LG G2 D800 with Android 4.1; however, the phone always shuts down at 2%, so it's impossible for me to go down until the absolute zero. How could I change this ...
2
votes
2answers
2k views

How to tame “Phone Idle” battery drain on unrooted device?

I use AccuBattery and Kaspersky Battery Life to measure energy consumption. Kaspersky Battery Life shows, that all the tasks use minimal energy. AccuBattery Pro shows, that phone uses 5-10 mAh. This ...
1
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2answers
65 views

Significant battery drop/reboot, but only in cold weather (+5°C/+41°F) with camera - expected behaviour or battery defect?

Disclaimer: This is not a duplicate, I've looked at these questions but none are applicable(temperature) or provide an adequate answer. Recently I've realized that my 15 month old LG G4 seems to ...
1
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2answers
49 views

How does the S flip case work?

I know that the magnets turn the phone on and off, but what about the time/date display on the case? Does the case somehow use the phone's battery to display those? If so, does it not drain the ...
1
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1answer
34 views

Improving horrible screen-on battery life

My HTC 10 is doing horribly when it comes to screen-on battery life after its update to Android 8.0. Average screen-on battery time is 1 hour and 15 minutes. I've tried most I could: turning off ...
1
vote
0answers
76 views

Why “System Update” app of “android 6.0” is draining battery

I am using Yu Yunicorn (5530) android phone. It has android marshmallow update. Recently I noticed when I put the phone on charging it takes long time to charge and never goes to 100%, also during the ...
1
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0answers
709 views

Galaxy Note 4 Battery Drain, Have Been Able to Narrow Cause Down to SD Card. Suggestions?

I've had my Galaxy Note 4 AT&T model for a little over a month now. I got it pre-owned, but even so it works great, almost as if brand new. With the exception of the battery life. I've noticed ...
2
votes
0answers
23 views

Battery Level Instant Drop

Recently, muy phone has had several instances of instant battery level drop; not as in quick drain, but rather, immediate drop. I've been able to document these two occurrences : Between the first ...
1
vote
1answer
376 views

Replacing a new capacity battery and re-calibration

I am using redmi 2 for about 3 year and it's battery is dead. It was using 2200 mAH battery. So I went to local vendor and bought a copy battery with the rating of 2000 mAH. Now the new battery ...
0
votes
1answer
505 views

What do the app “usage” times in battery settings represent, exactly?

I'm trying to figure out a way to track app usage on my phone without downloading an app that is going to share my personal data. At the bottom of Battery settings, there is a list called "App usage ...
0
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0answers
28 views

How can I get one month of battery time for an IOT application?

I like tinkering with Arduino and similar prototyping platforms for IOT applications. Often I want to read a sensor value and send it to some cloud service and repeat this, say, once every hour. ...
0
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0answers
43 views

Disabling energy saving for all apps

I'm not sure if I'm just using bad apps, but quite a lot of them require me to disable all those energy saving features (on my ZTE Axon 7, running Android 7.1.1 I have three sliders and an autostart ...