Database Users

Android OS draining battery?

Well my nexus has been giving me 5 hours SOT for the longest time, but just randomly, it decided to start dying really fast. I checked battery stats, and sure enough, android OS is the killer here. I'm aware android OS drains are usually because of apps installed, but I haven't installed anything new or suspicious any time recently. I even did a full wipe and reinstalled the rom I'm running.
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Are any of these apps known battery drainers?
Here's my battery shots.
Anyone know how to troubleshoot which apps are killing my system? I'm running CM 4/22/13 and franco.kernel r127 if that makes any difference.
Thanks guys!

If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app

Eddy130306 said:
If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Updated OP

Eddy130306 said:
If your phone has been on standby for that long then obviously androidos will be up there since nothing else has been working your battery. Post the pics so I can clarify this.
Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.

ingenious247 said:
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.
Click to expand...
Click to collapse
Pretty much my scenario

android os thing happened to me, i think for me it was because it was trying really hard to connect and stay connected to the bad wifi at my school, turned off wifi and the drain stopped. not sure about ur situation though

http://forum.xda-developers.com/showthread.php?t=1179809
This might just help you out. It'll show you any partial and kernel wakelocks and which processes are causing it.
I had this problem a while ago, so I did a clean install of my rom and apps and the problem was gone. If you can pinpoint the app that's causing your phone to stay awake, you can avoid having to do what I did xD

Really weird... this has been happening to me too, but not as drastic as yours (still a good chunk)
I just reflashed my ROM just in case that was the problem.
Also when I used better battery stats to see what's going on, all it showed me was the power manager thingy. Which showed me nothing.
Sent from my Nexus 4 using Tapatalk 2

kyokeun1234 said:
Really weird... this has been happening to me too, but not as drastic as yours (still a good chunk)
I just reflashed my ROM just in case that was the problem.
Also when I used better battery stats to see what's going on, all it showed me was the power manager thingy. Which showed me nothing.
Sent from my Nexus 4 using Tapatalk 2
Click to expand...
Click to collapse
That's all it ever shows when it comes to Google services jacking up the phone. Kind of convenient for Google since we can't pin down/point blame for the issue
Sent from my Nexus 4 using xda premium

Turning off WiFi when idle at school seems to have helped. I did notice that when I got to my house it seems the battery drain is more normal. Maybe it really is because the WiFi is just slow.
Sent from my Nexus 4

ingenious247 said:
Nah because when it happened (at least for me) the battery drain was sudden and drastic.
All day Screen was at the top, then all of the sudden in the evening Android OS went from 15% to 74% in about 15 minutes.
Click to expand...
Click to collapse
did you ever solve this problem? or find out what caused it?

I had a similar issue. My phone would not deep sleep. Yet things would work fine when I wasn't on WiFi. A reboot of my WiFi router fixed it.
Sent from my Nexus 4 using Tapatalk 4 Beta

I got the same problem here with my I9305 after updated to 4.3
It has a bit improvement after I disabled the ALWAYS WIFI SCANNING, and sync

[SOLVED!!]
i have this problem with my galaxy grand phone ,the battery discharges in 20hr , default OS was 4.1.2 official samsung , i changed my rom into a slim custom rom based 4.2.2 , but the battery has same problem again , Android OS battery Usage Was 80% !!!! and screen usage just was 9% !
my installed software :
Viber
WeChat
MyKet {Like Android Market}
Weather Widget
i used wifi 1-2 hour in a day ,
=================================
[SOLVE]
first go to Settings -> Developer Options -> Apps Tab -> checked Don't keep activities
set brightness to auto
then go to location services -> off access my location
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
now go to application manager -> Running Tab -> Force stop some apps with extra ram usage like settings
my phone just uses 5% battery in 13hr sleep mode ; ENJOY!

ohhacker said:
then go to wifi -> advanced Wi-Fi -> keep wi-fi on during sleep -> change to Never
Click to expand...
Click to collapse
I think if you only do this you will solve the problem.
At least for me my only problem with "Android OS" is when sleeping my phone and having "keep wi-fi on during sleep -> Always".
I have franco kernel and cannot check the kernel wakelocks but I test some days with CM kernel and didn't see any kernel wakelock that consumes too much battery... but maybe some of you have this problem: http://hardforum.com/showthread.php?p=1039838404

Wow, what a surprise... I solve my own problem with my last reply xD
I mean, when I installed CM months ago I select "keep wi-fi on during sleep -> Always" because I thought that if I don't do this I will not receive any notification. The fact is that when putting "Never" Android OS was CPU active mostly the 80-90% of time my phone was sleeping and Wifi ON and now with "Always" (or when plugged) has CPU active like 20-30%... AND I receive notifications also.
Probably when downloading a large data If I put my phone to sleep It will stop download, I didn't try.
One thing I don't understand is that when sleeping it doesn't use mobile data (as it says "Increases data usage"), even I have data and wifi on.
So, if I get notifications in both options ("Never" and "Always") and I get less battery drain with "Never" I prefer "Never".

mierda1 said:
Wow, what a surprise... I solve my own problem with my last reply xD
I mean, when I installed CM months ago I select "keep wi-fi on during sleep -> Always" because I thought that if I don't do this I will not receive any notification. The fact is that when putting "Never" Android OS was CPU active mostly the 80-90% of time my phone was sleeping and Wifi ON and now with "Always" (or when plugged) has CPU active like 20-30%... AND I receive notifications also.
Probably when downloading a large data If I put my phone to sleep It will stop download, I didn't try.
One thing I don't understand is that when sleeping it doesn't use mobile data (as it says "Increases data usage"), even I have data and wifi on.
So, if I get notifications in both options ("Never" and "Always") and I get less battery drain with "Never" I prefer "Never".
Click to expand...
Click to collapse
You say you receive notifications even with the "never" option, but are you sure its not using your cellular data connection instead?

I've experienced similar problem with GS4 after 4.3 update
I've experienced similar problem with GS4 after 4.3 update
There is a bug in google backup service, google backup service acquires wfii connectivity lock and does not release it for hours which prevents device entering deep sleep and as a result drains battery. Fortunately you can disable backup in Settings->Accounts->Backup and Reset-> uncheck 'Backup my data'. This should resolve the issue ... after a full recharge monitor your battery stats - Android OS should NOT be on the top.
Click to expand...
Click to collapse
Sorry disabling backup didn't help - encountered the same problem. There is indeed a bug that some OS module that holds a wlan lock but it's not a backup service. I suspect that full charge triggers this flow. Device restart will temporarily fix the issue. I'll post if i will find the causer, sorry for mislead.
Download this application it will resolve the problem till google fix it. h_t_t_p://kvant.store.aptoide.com/app/market/com.kvant_hv.BatteryLeakResolver/7/4579526/Battery%20Leak%20Resolver%20(OS%204.3)

Huge battery drain by "Android OS" when aeroplane mode is off

Hi
I'm getting massive drain on my battery when aeroplane mode is off (I have no sim card so when I'm not using WiFi I just put aeroplane mode on to stop it from searching for a network it'll never find) and when I look in battery it shows "Android OS" using 77%. It sometimes loses 15% within minutes. I'm rooted, stock JWR66Y with TWRP.
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megaman1574 said:
Hi
I'm getting massive drain on my battery when aeroplane mode is off (I have no sim card so when I'm not using WiFi I just put aeroplane mode on to stop it from searching for a network it'll never find) and when I look in battery it shows "Android OS" using 77%. It sometimes loses 15% within minutes. I'm rooted, stock JWR66Y with TWRP.
View attachment 2261703
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Sent from my Nexus 4 using xda app-developers app
Click to expand...
Click to collapse
You answered your own question. When you turn airplane mode off the phone automatically searches for a carrier network to join that it can't find because you don't have one so it searches forever which will drain the battery quickly.

kzoodroid said:
You answered your own question. When you turn airplane mode off the phone automatically searches for a carrier network to join that it can't find because you don't have one so it searches forever which will drain the battery quickly.
Click to expand...
Click to collapse
It doesn't. I used my fresh N4 SIM free for few days and never encountered the problem, it locked onto a network for emergency calls (same empty cell icon) and it never drained battery more than usual.
I advice to turn off automatic search and notification for Wifi networks and use Wakelock Detector to monitor what's using up the battery. Over the weekend a Google Now! notification (something that didn't show in the calendar and couldn't disregard it just set to snooze) got into a loop, so turning off Now (which I don't use anyway) and restarting the phone solved it. Maybe something else is putting the phone in a loop Google services are quite troublesome on 4.3, or if it's indeed network search, then turn Airplane mode ON and Wifi ON as well...
https://play.google.com/store/apps/...EsImNvbS51enVtYXBwcy53YWtlbG9ja2RldGVjdG9yIl0.

BoneXDA said:
It doesn't. I used my fresh N4 SIM free for few days and never encountered the problem, it locked onto a network for emergency calls (same empty cell icon) and it never drained battery more than usual.
I advice to turn off automatic search and notification for Wifi networks and use Wakelock Detector to monitor what's using up the battery. Over the weekend a Google Now! notification (something that didn't show in the calendar and couldn't disregard it just set to snooze) got into a loop, so turning off Now (which I don't use anyway) and restarting the phone solved it. Maybe something else is putting the phone in a loop Google services are quite troublesome on 4.3, or if it's indeed network search, then turn Airplane mode ON and Wifi ON as well...
https://play.google.com/store/apps/...EsImNvbS51enVtYXBwcy53YWtlbG9ja2RldGVjdG9yIl0.
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Click to collapse
I don't think the phone works the same way overseas as far as locking onto a tower for emergency calls only I think that is a US only requirement. I assumed the OP was not from the US by his use of the word aeroplane. He could also try to restrict background data to wifi only in the settings. Its under data usage, hit the menu button then select restrict background data. He could also just turn off mobile data completely in the settings which might help.

kzoodroid said:
You answered your own question. When you turn airplane mode off the phone automatically searches for a carrier network to join that it can't find because you don't have one so it searches forever which will drain the battery quickly.
Click to expand...
Click to collapse
It never used to do that. I've had for a couple of months with no sim card and it was fine. Is there some way I can turn off 3g without having aeroplane mode on (aeroplane mode turns off wifi)?
BoneXDA said:
It doesn't. I used my fresh N4 SIM free for few days and never encountered the problem, it locked onto a network for emergency calls (same empty cell icon) and it never drained battery more than usual.
I advice to turn off automatic search and notification for Wifi networks and use Wakelock Detector to monitor what's using up the battery. Over the weekend a Google Now! notification (something that didn't show in the calendar and couldn't disregard it just set to snooze) got into a loop, so turning off Now (which I don't use anyway) and restarting the phone solved it. Maybe something else is putting the phone in a loop Google services are quite troublesome on 4.3, or if it's indeed network search, then turn Airplane mode ON and Wifi ON as well...
Click to expand...
Click to collapse
I have Wakelock detector but it is sleeping when I turn the screen off. It just uses MASSES of battery when I'm using it with aeroplane mode off. I'll try turning off some google services. Putting aeroplane mode on turns wifi off.
kzoodroid said:
I don't think the phone works the same way overseas as far as locking onto a tower for emergency calls only I think that is a US only requirement. I assumed the OP was not from the US by his use of the word aeroplane. He could also try to restrict background data to wifi only in the settings. Its under data usage, hit the menu button then select restrict background data. He could also just turn off mobile data completely in the settings which might help.
Click to expand...
Click to collapse
Correct, I'm in Australia. I have no idea whether the phone has to lock onto a tower here. I might try turning off mobile data.

None of the suggested things seem to work. I've also noticed that "android os" is using most of the battery even when aeroplane mode is on. It just seems to drain faster with it off. And also, does anyone know why my led notification light is glowing blue and won't stop? I have no notifications and restarting doesn't even make it turn off.

Just for reference, this is what the battery life used to look like:

HIGH battery drain

Hello guys,
yesterday I rolled back from N to MM in order to install a fresh MM and install the N again and I still have high battery drain where Android System and AndroidOS are top battery consumers. I have high drainage when I am not using the phone too, and its not even connected to the internet too. Few days ago for two hours of not using the phone I had around 30% battery drain and I think that's not normal at all. I think that the phone is draining less battery when I am using it than I am using it...
As I said before, I have freshly installed Nougat b371, I am not rooted and the bootloader is locked.
I thought it was because I tried to install the b381 300mb version but it failed installing it and I thought it was part b371, part b381 and that was causing some problem with that and that's why I installed a fresh version of MM but that's not working too and I don't know what to do now. If you can guys help me It'd be awesome!
And I also these days never have 4g, only H+ and its losing the connection and it automatically reconnects after few seconds and I don't know why. Before I always had 4g... The fresh MM didn't solved that problem. Do you think that b381 failed installation somehow misfigured something?
And a screenshot of the consumption level.
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Wasn't H+ the symbol of 4G?

Johnny TDN said:
Wasn't H+ the symbol of 4G?
Click to expand...
Click to collapse
Before I had 4G symbol, now I have H+. And sometime it changes to 3G but thats rare.
I dont mind the H+, but it annoys me that it disconnects all the time and reconnects after few seconds...

Disable the Google app and go to phone manager،tap cleanup then tap on the option icon on the upper right of the screen. Now tap memory clean up whitelist ,and uncheck all of the apps (recommend) or just uncheck all except the apps you don't want to close like messenger ..etc. Now go to phone manager and wait for it to load then click optimize. You'll notice a huge difference.

Tech.San said:
Disable the Google app and go to phone manager،tap cleanup then tap on the option icon on the upper right of the screen. Now tap memory clean up whitelist ,and uncheck all of the apps (recommend) or just uncheck all except the apps you don't want to close like messenger ..etc. Now go to phone manager and wait for it to load then click optimize. You'll notice a huge difference.
Click to expand...
Click to collapse
Disabling Google app is just like a default thing I am doing after factory reset, hahah. And I also unchecked the apps before, its like a normal thing to me after installing all the apps I need after a factory reset. The thing is the android is draining too much battery and I was asking for a way to somehow reduce it, because even if I am not using the phone it drains the battery for more than 15%, not a couple of percents... I will do a test this night and I will let you know tomorrow.
And also the phone is getting hotter than before...
That's why I did a rollback and installed all new MM, like it came from a store, to see if that'd help but nothing...

My phone had battery drain when I disabled google backup transport.
I don't use google backup. Everything is disabled, but since I enabled it, battery drain is gone.

drisena said:
My phone had battery drain when I disabled google backup transport.
I don't use google backup. Everything is disabled, but since I enabled it, battery drain is gone.
Click to expand...
Click to collapse
Ummm... in my phone Google Backup Transport is already enabled...

Went to sleep at 4:00am and my phone had 90% od battery and woke up at 11:45am and I had 43% battery. Thats 47% battery drain over night.
HELP?
I also installed gsam battery monitor and combined app cpu was the highest battery drainer with 76%...
Maybe to try deleting EVERYTHING from TWRP and flash a zip file of emui 4.1? If thats better than a normal factory reset I would try that too, because factory reset didnt solved my problem...

I have the same issue on B360.
Phone Idle in Hardware Section and Android OS in software drains alot during standby. Android OS keeps the system awake.

I think they played around with the cpu governor since they removed the battery performance mode.

Hey guys, i found a bug with wifi i think, i tried with latest LOS, RR, OMNI and SLIM roms (meticulus)
I found that in my case, the battery drain comes from the wifi not turning off when the phone is asleep, regardless any saving options i tick.
I discovered it while checking my wifi router, i saw my phone listed but it was un plugged from charger and locked.
I unlocked my phone and surprise, the wifi icon was already here full and ready now i'm searching a rom without those issues as i'm sure it did not do that when i flashed my first roms on this device (CM13 i think)
can some of you guys double check this issue so i can know if it's related to my device only ?

mchtt said:
Hey guys, i found a bug with wifi i think, i tried with latest LOS, RR, OMNI and SLIM roms (meticulus)
I found that in my case, the battery drain comes from the wifi not turning off when the phone is asleep, regardless any saving options i tick.
I discovered it while checking my wifi router, i saw my phone listed but it was un plugged from charger and locked.
I unlocked my phone and surprise, the wifi icon was already here full and ready now i'm searching a rom without those issues as i'm sure it did not do that when i flashed my first roms on this device (CM13 i think)
can some of you guys double check this issue so i can know if it's related to my device only ?
Click to expand...
Click to collapse
I didnt had something like that while I was using b371. When I turned the Wi-Fi off it was off.
In my case I think that there is something screwed up with the mobile network and causing battery drain and warming up the phone...
Maybe I will try a new rom, to see if the problem will be still there.

mchtt said:
Hey guys, i found a bug with wifi i think, i tried with latest LOS, RR, OMNI and SLIM roms (meticulus)
I found that in my case, the battery drain comes from the wifi not turning off when the phone is asleep, regardless any saving options i tick.
I discovered it while checking my wifi router, i saw my phone listed but it was un plugged from charger and locked.
I unlocked my phone and surprise, the wifi icon was already here full and ready now i'm searching a rom without those issues as i'm sure it did not do that when i flashed my first roms on this device (CM13 i think)
can some of you guys double check this issue so i can know if it's related to my device only ?
Click to expand...
Click to collapse
Phone Manager-Battery-Settings-Keep wifi while sleeping.

Johnny TDN said:
Phone Manager-Battery-Settings-Keep wifi while sleeping.
Click to expand...
Click to collapse
lol, yes man. does not work, i can choose any options it does never turn off the wifi while the phone is locked...
so i'm trying to do a task (tasker) to auto turn off wifi when the screen is locked.

Installed MM again yesterday, rooted the phone and installed Better Battery Stats and here are the results after the night. I had a battery drain of 30% over night.
Here are the results of the BBS.
A solution?
http://imgur.com/a/OcdE7
(Scroll down for more screenshots)

ZeusftW97 said:
Installed MM again yesterday, rooted the phone and installed Better Battery Stats and here are the results after the night. I had a battery drain of 30% over night.
Here are the results of the BBS.
A solution?
http://imgur.com/a/OcdE7
(Scroll down for more screenshots)
Click to expand...
Click to collapse
xx wrong xx

hi, I have similar problem, during night 10-15 percent of battery drained.
i think the cause is either the google account sync, some google apps or google backup functionality.
according to power manager, the phone is awake and also OS has the most percentage in consumption.
i dont have root, do someone figure that out or at least found out the reason?
thx

7hit said:
hi, I have similar problem, during night 10-15 percent of battery drained.
i think the cause is either the google account sync, some google apps or google backup functionality.
according to power manager, the phone is awake and also OS has the most percentage in consumption.
i dont have root, do someone figure that out or at least found out the reason?
thx
Click to expand...
Click to collapse
I fixed my issue by changing the mobile network to 2G/3G, not using the 4G and for some reason that was causing some problems with the battery drainage.
I rooted the phone and installed Better Battery Stats (which is working with non-rooted phones but using adb) but I couldn't make it work so I rooted the phone only for that, to see what was draining my battery so much with a lot of help of @pilgrim011.
If you have a problem with the 4G as I mentioned before, try disabling it and check the results after.
And I don't think that google's backup and sync apps were causing drainage because they obviously need an internet to work, or to back things up to be simple. If I am not wrong, haha.
Hope you'll find a fix for your problem.

Ok,going to try and get back with results

Ok so i am back, and have bad news. But at least i am seeing a pattern in behavior.
Last evening i charged phone to max, before sleep ir was ok - android os little drain, android apps bigger.
After night the battery dropped from 97 to 79%, like last time i charged to max, the system was awake regurarly and all drained by android os.... i only happens during tje first night, do you have any ideas?

Overnight battery drain

I have a problem that I noticed some people are experiencing. Overnight idle the phone drains like 25% with wifi off and on battery saver. Is there a known cause for this? My Honor 8 is brand new. Help!
Edit - When I go to sleep -
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After I wake up it's normal again (I turn WiFi on and use phone normally) -
I will try and leave WiFi on during the night today to see if it makes any difference.

Fyi, since I woke up and turned wifi on, the battery has only went down by 1%! Something is not right. How can it drain so much without using it and almost none when I actually use it.
Screenshot from today (from 1pm till 7pm, only lost 2%)
i.imgur.com/xLBcILO.png

Which hardware and firmware version are you using?
Do you have cellular data connected when WiFi is off?
Does the battery graph show constant system awake time during these periods of high drain?

PuffDaddy_d said:
Which hardware and firmware version are you using?
Do you have cellular data connected when WiFi is off?
Does the battery graph show constant system awake time during these periods of high drain?
Click to expand...
Click to collapse
Hi. I'm using FRD-L09 and EMUI 5, build FRD-L09C432B381.
No wifi, no mobile data turned on. All apps closed.
Yesterday I left it at ultra power save when it was at 12%, after I woke up (around 6 hours). it was off. Don't think that's normal either.

Sometimes I have the same problem. Overnight phone drops 25% of the battery.
What I found useful is to turn off Wifi+, Link+ and in GPS location (3 dots -> Search settings -> turn off Searching for Wifi and Bluetooth). In fact that will stops searching for Wifi, while Wifi is toogled off.
It might help you, I think this is Android 7 issue, since most people complains about heavy battery drain when not using the phone. Noone complained when using Android 6.

This isn't normal, but at the same time it is... I don't think any one person has figured out the real reason why, but many of us have had similar battery drain for seemingly no reason. I simply backed up my data and factory reset the phone and haven't had an issue since. Others haven't been so lucky.
Can you take a screen shot of your battery graph so we can see if your system is awake during the drain?

I have update B381 and u have this problem with battery drain for my is very bad battery life update B360 was good for battery life.

I found the high Idle battery usage some what related to the phone keep search for upgrade and the process "android OS" was consuming around 50% all the time.
After set these two setting, it fixed the battery drain and "android OS" only use around 20%. Now it remains 100% battery for 10 hours standby.
1) Setting->System update ->(three dots)->Update Settings->Wifi auto download (Disable)
2) Setting->Battery->(Setting icon on top right)->keep wifi on when sleeping->Never

I did as everyone suggested and turned off auto WiFi and bluetooth search and auto WiFi download of the system updates. If I turn off keep WiFi on during sleep, I don't get any notifications from messaging apps, so I won't do that. I've also only left Messenger, Viber and Whatsapp in the whitelist of programs that will be closed when screen is locked.
Here is the most recent screenshot of the battery usage.

Try factory reset and wipe cache. Screenshot tells us that your phone is awake when you are not using it.

Okay, I'll try later tonight and reply tomorrow if anything's changed.
p.s. Any good full backup apps?

Re7r0re7r0 said:
Okay, I'll try later tonight and reply tomorrow if anything's changed.
p.s. Any good full backup apps?
Click to expand...
Click to collapse
Just use the backup tool that was loaded on the phone. It works nearly perfectly to backup all your texts, call log, apps, settings, etc.
---------- Post added at 08:55 AM ---------- Previous post was at 08:52 AM ----------
Re7r0re7r0 said:
I did as everyone suggested and turned off auto WiFi and bluetooth search and auto WiFi download of the system updates. If I turn off keep WiFi on during sleep, I don't get any notifications from messaging apps, so I won't do that. I've also only left Messenger, Viber and Whatsapp in the whitelist of programs that will be closed when screen is locked.
Here is the most recent screenshot of the battery usage.
Click to expand...
Click to collapse
Looks like it tried to sleep when you went to bed last night, but something woke it up early in the morning and it never went back to sleep. Find out what that was and you may solve your problem.

If you have data, you still get notifications.
Re7r0re7r0 said:
I did as everyone suggested and turned off auto WiFi and bluetooth search and auto WiFi download of the system updates. If I turn off keep WiFi on during sleep, I don't get any notifications from messaging apps, so I won't do that. I've also only left Messenger, Viber and Whatsapp in the whitelist of programs that will be closed when screen is locked.
Here is the most recent screenshot of the battery usage.
Click to expand...
Click to collapse

As a test, I created a Magisk module that freezes all of Huawei's system power management apps and superfluous services. I just loaded it today, so it'll be a few days before I can provide feedback on if it improves battery life.

I backed it all up and am wiping it tonight but I was thinking. Perhaps it's not a good idea to restore the data yet? Maybe I should try a night with stock settings/apps to see if that makes a difference, then restore all and see if there's any difference.

Re7r0re7r0 said:
I backed it all up and am wiping it tonight but I was thinking. Perhaps it's not a good idea to restore the data yet? Maybe I should try a night with stock settings/apps to see if that makes a difference, then restore all and see if there's any difference.
Click to expand...
Click to collapse
Honestly, I wouldn't expect that experiment to provide you with any useful info. You will naturally see more battery drain once you have your apps and services running because more will be happening in the background. Reinstall everything and use your device normally to get the most accurate comparison to your previous battery life.

netvorCZEK said:
Try factory reset and wipe cache. Screenshot tells us that your phone is awake when you are not using it.
Click to expand...
Click to collapse
Factory reset I know how to do, but how to give the wipe cache?

IIRC, the cache should be wiped automatically when you Factory Reset.

I like to do it manually. Turn off the phone. Hold Vol + and power button.

I wonder how the battery drain overnight will be with the new custom Roms which are out.

Trying to find the cause of my idle battery drain (Exynos s10+)

I've noticed my s10+ Exynos has some pretty heavy idle battery drain. As you can see in this image, 2 hours of idle time amounted to 10% battery drain, but I can't seem to find the cause of the issue.
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- I'm running the device on WQHD+
- OSD is set to tap only, so it only activates when I touch the screen
- Power mode is set to "Optimised"
- I've turned on Adaptive Power Saving to see if that made a difference
- Have emails set to sync every 3 hours
- Night Mode is on
- Did not receive any notifications in the time screenshotted
Any ideas on what I could do to sort this out?

I had a similar issue, what fixed it for me, was to erase system cache and then reset the battery calibration readings using the command *#0228# and then I turned off my phone for a while and turn it on before going to sleep and left it on airplane mode and Bluetooth to see any battery drain and so far so good.
Also in this thread in the last post of that page there is a solution that apparently works.
https://forum.xda-developers.com/s10-plus/review/screen-time-t3905264/page4

aromerodaniel said:
I had a similar issue, what fixed it for me, was to erase system cache and then reset the battery calibration readings using the command *#0228# and then I turned off my phone for a while and turn it on before going to sleep and left it on airplane mode and Bluetooth to see any battery drain and so far so good.
Also in this thread in the last post of that page there is a solution that apparently works.
https://forum.xda-developers.com/s10-plus/review/screen-time-t3905264/page4
Click to expand...
Click to collapse
Will try that out, does my device have to be fully charged before running that command?
Also, have you managed to test it without Airplane mode on?

Xyrann said:
I've noticed my s10+ Exynos has some pretty heavy idle battery drain. As you can see in this image, 2 hours of idle time amounted to 10% battery drain, but I can't seem to find the cause of the issue.
- I'm running the device on WQHD+
- OSD is set to tap only, so it only activates when I touch the screen
- Power mode is set to "Optimised"
- I've turned on Adaptive Power Saving to see if that made a difference
- Have emails set to sync every 3 hours
- Night Mode is on
- Did not receive any notifications in the time screenshotted
Any ideas on what I could do to sort this out?
Click to expand...
Click to collapse
Can you install cpu spy and see if your phone goes into deep sleep? It seems to be the reason for battery problems in exynos variants. Try to follow some suggestions in this thread:
S10+ No Deep Sleep?
https://r.tapatalk.com/shareLink?sh...rs.com/showthread.php?p=79087092&share_type=t

Also had problem with idle drain + also made cache partition reset. Problem gone. You should try it

aromerodaniel said:
I had a similar issue, what fixed it for me, was to erase system cache and then reset the battery calibration readings using the command *#0228# and then I turned off my phone for a while and turn it on before going to sleep and left it on airplane mode and Bluetooth to see any battery drain and so far so good.
Also in this thread in the last post of that page there is a solution that apparently works.
https://forum.xda-developers.com/s10-plus/review/screen-time-t3905264/page4
Click to expand...
Click to collapse
My drain is around 2-3% every 10h but I will definitely try that

Corv0 said:
My drain is around 2-3% every 10h but I will definitely try that
Click to expand...
Click to collapse
That is a good number, for me the real test will come today when i go to sleep and wake up seeing home my device is, right now it I took it off from charge at 65 around 2-3 pm used it and now it is at 54% almost 6pm and my phone goes to deep sleep, as accubattery shows.
---------- Post added at 06:27 PM ---------- Previous post was at 05:55 PM ----------
Corv0 said:
My drain is around 2-3% every 10h but I will definitely try that
Click to expand...
Click to collapse
Do you get that drain meanwhile using the phone with all active, signal, wifi, bluetooth, location, etc.

aromerodaniel said:
Do you get that drain meanwhile using the phone with all active, signal, wifi, bluetooth, location, etc.
Click to expand...
Click to collapse
I'm using a custom Bixby routine and other settings to:
-airplane mode until 6am
-enable all services again
-force updates
-run optimiser services
-restart
By whatever time I wake up the phone is good to go, if it was on battery it loses what I said, maybe that's why the drain, I'm not completely sure but it

Corv0 said:
I'm using a custom Bixby routine and other settings to:
-airplane mode until 6am
-enable all services again
-force updates
-run optimiser services
-restart
By whatever time I wake up the phone is good to go, if it was on battery it loses what I said, maybe that's why the drain, I'm not completely sure but it
Click to expand...
Click to collapse
If you are draining 2-3% in airplane mode I think that is normal, if you are losing that with all services, your phone battery is amazing

piotrkruczek said:
Also had problem with idle drain + also made cache partition reset. Problem gone. You should try it
Click to expand...
Click to collapse
Tried that now drainage is much better, 1% an hour. Not sure if that's still high or not though?

Xyrann said:
Tried that now drainage is much better, 1% an hour. Not sure if that's still high or not though?
Click to expand...
Click to collapse
Thats already good but still it can get better.

justvalencia said:
Thats already good but still it can get better.
Click to expand...
Click to collapse
Besides turning on airplane mode, what do you think I should try? I downloaded that CPU app, and my device does go into deep sleep when idle so I don't think that's an issue for me

Xyrann said:
Besides turning on airplane mode, what do you think I should try? I downloaded that CPU app, and my device does go into deep sleep when idle so I don't think that's an issue for me
Click to expand...
Click to collapse
I wouldn't do airplane mode. Try with Do not disturb. It seems to work better somehow.
Check CPU Spy to see, how much deep sleep you're achieving with one and the other.
Also:
- disable all the apps you don't need + background data / activity (esp. preloaded Facebook, Linkedin etc.)
- you can try using Kiwi Browser (complete black mode) instead of Chrome (then disable chrome).
- switch off smart stay, turning on display when lift off, AOD
There's plenty more... but as far as my stats go with those settings:
- around 10-12 hrs SOT with 2-3 hrs youtube, 2 hrs browsing, 1 hr spotify
- approx 1,5 day of standby with that amount of SOT (with less frequent phone usage i got 2 days worth of battery)