Standby drain - Xiaomi Mi 9 SE Real Life Review

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Xiaomi Mi 9 SE's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!

There is one setting that influences standby battery drain very much - "mobile signal standby"
Have a look in your battery monitor.
I have got Mi9SE Global V10.2.5.0.PFBEUXM and my battery lasts longer now.
Go to Settings -> My Device -> internal storage (click 4 times until you are in test suite)
no go to telephone information 1 or 2 (according to your sim)
look for "set preferred network type"
default value is - LTE/TD-SCDMA/UMTS
but in europe there is no TD-SCDMA - so the phone searches for a mobile network that does not exist. this drains your battery
set it to LTE/WCDMA
enjoy much longer battery!
ATTENTION - after a reboot the setting is back to stock! you have to set it again or wait for xiaomi to fix it in a future release!

i try because at night phone drain 12-15% in standby

You can also type *#*#4636#*#* in your dialer to get to that setting

Thanks, will try. Hope thex fix that in future release

Thanks mate! Lets see the endurance with it

nevusZ said:
ATTENTION - after a reboot the setting is back to stock! you have to set it again or wait for xiaomi to fix it in a future release!
Click to expand...
Click to collapse
Im running 9.5.16 and its fixed !

this is the 10.9.5.16 beta, right? Sorry new to miui versioning etc. I am still on 10.2.5.0 global. Think this will some time until the 9.5.16 will be released?

nevusZ said:
There is one setting that influences standby battery drain very much - "mobile signal standby"
Have a look in your battery monitor.
I have got Mi9SE Global V10.2.5.0.PFBEUXM and my battery lasts longer now.
Go to Settings -> My Device -> internal storage (click 4 times until you are in test suite)
no go to telephone information 1 or 2 (according to your sim)
look for "set preferred network type"
default value is - LTE/TD-SCDMA/UMTS
but in europe there is no TD-SCDMA - so the phone searches for a mobile network that does not exist. this drains your battery
set it to LTE/WCDMA
enjoy much longer battery!
ATTENTION - after a reboot the setting is back to stock! you have to set it again or wait for xiaomi to fix it in a future release!
Click to expand...
Click to collapse
prydox said:
this is the 10.9.5.16 beta, right? Sorry new to miui versioning etc. I am still on 10.2.5.0 global. Think this will some time until the 9.5.16 will be released?
Click to expand...
Click to collapse
Yes, its the beta one. Before when I was running the global one after reboot I had to change the settings over again

nevusZ said:
There is one setting that influences standby battery drain very much - "mobile signal standby"
Have a look in your battery monitor.
I have got Mi9SE Global V10.2.5.0.PFBEUXM and my battery lasts longer now.
Go to Settings -> My Device -> internal storage (click 4 times until you are in test suite)
no go to telephone information 1 or 2 (according to your sim)
look for "set preferred network type"
default value is - LTE/TD-SCDMA/UMTS
but in europe there is no TD-SCDMA - so the phone searches for a mobile network that does not exist. this drains your battery
set it to LTE/WCDMA
enjoy much longer battery!
ATTENTION - after a reboot the setting is back to stock! you have to set it again or wait for xiaomi to fix it in a future release!
Click to expand...
Click to collapse
I got Mi 9 se like 2 days ago and I already had read this post, so as soon as I got my phone, I switched to wcdma only as I only use 3g.. The battery life coming from SD 625, 4000mA was underwhelming but still got 7 hours out of it, 1 day and 2 nights usage to the max.. The thing thats bothering me is the cell standby time! It's eating away the battery in idle and during screen on.. Got 8 percent battery drain during the night with everything off and it's been the highest consumer till the end (screen time just took over it at the end).. I am on 10.2.2.. Apparently there is no help regarding this anywhere

hash054 said:
I got Mi 9 se like 2 days ago and I already had read this post, so as soon as I got my phone, I switched to wcdma only as I only use 3g.. The battery life coming from SD 625, 4000mA was underwhelming but still got 7 hours out of it, 1 day and 2 nights usage to the max.. The thing thats bothering me is the cell standby time! It's eating away the battery in idle and during screen on.. Got 8 percent battery drain during the night with everything off and it's been the highest consumer till the end (screen time just took over it at the end).. I am on 10.2.2.. Apparently there is no help regarding this anywhere
Click to expand...
Click to collapse
You should try the 9.5.16.
My battery life has improved after it

hash054 said:
I got Mi 9 se like 2 days ago and I already had read this post, so as soon as I got my phone, I switched to wcdma only as I only use 3g.. The battery life coming from SD 625, 4000mA was underwhelming but still got 7 hours out of it, 1 day and 2 nights usage to the max.. The thing thats bothering me is the cell standby time! It's eating away the battery in idle and during screen on.. Got 8 percent battery drain during the night with everything off and it's been the highest consumer till the end (screen time just took over it at the end).. I am on 10.2.2.. Apparently there is no help regarding this anywhere
Click to expand...
Click to collapse
Same problem with cell standby, but i can not find a solution. Maybe a modem problem?

ChocoHR said:
Im running 9.5.16 and its fixed !
Click to expand...
Click to collapse
Is it a global dev or xiaomi.eu? Where can i download it?

ciacho23 said:
Is it a global dev or xiaomi.eu? Where can i download it?
Click to expand...
Click to collapse
Its a beta from xiaomi.eu .

any news about this Cell standby problem? Is it fixed in Global Dev rom or .eu rom?

Global dev ROM? There's just a Chinese Dev ROM, or am I wrong?

can someone help me to fix it? this android system eating my battery too much
[/IMG]

christiantanjung00 said:
can someone help me to fix it? this android system eating my battery too much
[/IMG]
Click to expand...
Click to collapse
Hi there, just made a quick test overnight and I "think" I found the root cause. I deleted the fingerprint data thus disabling the fingerprint reader and the results are a bit worrying... got 3% loss in 7 hours during the night. This morning I'm stable on 1% / hour drain with short calls and AOD on. I'll take a look in the kernel if I can find anything related to the reader power management, but I'm pretty confident the cause is in there...

pengus77 said:
Hi there, just made a quick test overnight and I "think" I found the root cause. I deleted the fingerprint data thus disabling the fingerprint reader and the results are a bit worrying... got 3% loss in 7 hours during the night. This morning I'm stable on 1% / hour drain with short calls and AOD on. I'll take a look in the kernel if I can find anything related to the reader power management, but I'm pretty confident the cause is in there...
Click to expand...
Click to collapse
i dont think so bro, i'm not use fingerprint security and aod. but i wonder why android system spend bigger battery drain than the gaming apps, it was more than a half difference power usage. r u have other advice bro?

pengus77 said:
Hi there, just made a quick test overnight and I "think" I found the root cause. I deleted the fingerprint data thus disabling the fingerprint reader and the results are a bit worrying... got 3% loss in 7 hours during the night. This morning I'm stable on 1% / hour drain with short calls and AOD on. I'll take a look in the kernel if I can find anything related to the reader power management, but I'm pretty confident the cause is in there...
Click to expand...
Click to collapse
I see Cell Standby consumption really high, always at least 25% of battery. No changes with different sim, i tried all

Related

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the HTC U11+'s battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
I have terrible standby drain, basically the phone never truly sleeps, it is kept awake on a low CPU frequency by Kernel (Android OS).
This is what I see in GSam, and I lose 20% battery over one night (8 hours).
This is why my battery life is somewhat 4 h SOT over 24 hours.
And I think this device should be capable of double that, maybe 7 h SOT over 24 hours.
Anybody else see this king of behaviour ?
I had same problem with my U11+
I reset application preferences and now the smartphone seems to go into deep sleep (Doze)
Had pretty bad standby battery drain recently on my U11+ and did 2 things that seemed to have fixed it.
1) Cleared cache on HTC Doze
2) Ram Boost+ for the first time and then enabled Smart Boost
Did these ard 12hrs ago and standby drain seemed to have improved a lot. Will report in a few days to let you guys know if it's really fixed for me or not.
andreipaval said:
I have terrible standby drain, basically the phone never truly sleeps, it is kept awake on a low CPU frequency by Kernel (Android OS).
This is what I see in GSam, and I lose 20% battery over one night (8 hours).
This is why my battery life is somewhat 4 h SOT over 24 hours.
And I think this device should be capable of double that, maybe 7 h SOT over 24 hours.
Anybody else see this king of behaviour ?
Click to expand...
Click to collapse
rva60481 said:
I had same problem with my U11+
I reset application preferences and now the smartphone seems to go into deep sleep (Doze)
Click to expand...
Click to collapse
quagmire1234 said:
Had pretty bad standby battery drain recently on my U11+ and did 2 things that seemed to have fixed it.
1) Cleared cache on HTC Doze
2) Ram Boost+ for the first time and then enabled Smart Boost
Did these ard 12hrs ago and standby drain seemed to have improved a lot. Will report in a few days to let you guys know if it's really fixed for me or not.
Click to expand...
Click to collapse
Is a known issue and HTC is already working on it.
So far, they recommend to reboot the phone every 1-2 days to prevent this.
Reboot everyday !?!
It's a boring solution... and not the solution for my problem.
rva60481 said:
Reboot everyday !?!
It's a boring solution... and not the solution for my problem.
Click to expand...
Click to collapse
It is the workaround HTC recommended until they release the update with the fix.
I'm not having any standby drain even without rebooting my phone.
gm007 said:
I'm not having any standby drain even without rebooting my phone.
Click to expand...
Click to collapse
You have 3,5 hours of SOT from 29% battery ?, and with 11 hours off the carger.
At this rate you will get more that 10 hours of SOT.
This seems almost unreal to me... I don't even have half of that, with medium use...
Please share more... settings, apps, how do you do it ?
andreipaval said:
You have 3,5 hours of SOT from 29% battery ?, and with 11 hours off the carger.
At this rate you will get more that 10 hours of SOT.
This seems almost unreal to me... I don't even have half of that, with medium use...
Please share more... settings, apps, how do you do it ?
Click to expand...
Click to collapse
Yes i could,i already shared a screen shot in other thread ,plus the 2 last pages for info what i have disabled
https://forum.xda-developers.com/showthread.php?t=2411840&p=75594359
Battery drain
This is my situation, with the last software update! 6 hours awake screen off!
I've only disabled Bluetooth, so no more connection to Android Wear watch... Zero issues with sleep now, two full days easily done.

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Honor 10's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
3-4% normal at night..
I got 3% drain during night with wifi off and single sim installed.
The last two nights my Honor 10 lost about 20% over night (approximately 8h) in Flightmode. I can't tell why... There is no app or hardware that consumes more power than usual. After I got my phone the SOT was about 6 hours, now it barely goes over 3 hours. Does anyone else have the same problem?
Mine loses 5-7 % overnight which seems rather bad to me. My Xiaomi Mi4 which I had before lost like 1-2 %...
XDA_RealLifeReview said:
When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Honor 10's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Click to expand...
Click to collapse
The same!!!!!!. Any solution for this issue????
Same here. It is really frustating, the battery life is really bad and I can make even a day without charging.
miststudent2011 said:
I got 3% drain during night with wifi off and single sim installed.
Click to expand...
Click to collapse
1% drain per hour. 8 hours lost 8% battery with WiFi being kept to never on when device sleeps.
Kavitam said:
1% drain per hour. 8 hours lost 8% battery with WiFi being kept to never on when device sleeps.
Click to expand...
Click to collapse
Did you enable 4g if yes check by disabling it.
miststudent2011 said:
Did you enable 4g if yes check by disabling it.
Click to expand...
Click to collapse
Yes.
But mobile data was off and am on 4G.
Kavitam said:
Yes.
But mobile data was off and am on 4G.
Click to expand...
Click to collapse
Even though you disable mobile data phone will search continuously for 4g signal which is not available properly, which causes battery drain.
miststudent2011 said:
Even though you disable mobile data phone will search continuously for 4g signal which is not available properly, which causes battery drain.
Click to expand...
Click to collapse
That's fine. Will anyways check and see
Kavitam said:
That's fine. Will anyways check and see
Click to expand...
Click to collapse
Not bad stats .. full day off charger with emails, phone calls, WhatsApp and lil bit of other social media too
This is my battery drain overnight.
Is this a problem? I expect a very near horizontal drain overnight of max 1% to 2%...
That doesn't look like 1% or 2%
Penetrator18 said:
The last two nights my Honor 10 lost about 20% over night (approximately 8h) in Flightmode. I can't tell why... There is no app or hardware that consumes more power than usual. After I got my phone the SOT was about 6 hours, now it barely goes over 3 hours. Does anyone else have the same problem?
Click to expand...
Click to collapse
Here is an update:
I tried to turn off every app in the battery settings so that they are not allowed to work in the background. That didn't help.
Then i turned off the wifi and bluetooth search for the location (GPS). That didn't help either.
After that i did some research and people with Honor 8 had the same problem and performed a "clear cache" via recovery so i did that too... What a surprise that didn't help. So i read some articles that the Google Pixel 2 and the One Plus 6 have some problems with the battery after the latest Oreo Update so i performed a factory reset aaand that didn't help...
So for fun i powered off my Honor 10 over night and the battery drain was also 20% and the phone was compeletly off.
I will now wait for the next Emui Update and if this will not help i have to exchange this phone.
Penetrator18 said:
Here is an update:
I tried to turn off every app in the battery settings so that they are not allowed to work in the background. That didn't help.
Then i turned off the wifi and bluetooth search for the location (GPS). That didn't help either.
After that i did some research and people with Honor 8 had the same problem and performed a "clear cache" via recovery so i did that too... What a surprise that didn't help. So i read some articles that the Google Pixel 2 and the One Plus 6 have some problems with the battery after the latest Oreo Update so i performed a factory reset aaand that didn't help...
So for fun i powered off my Honor 10 over night and the battery drain was also 20% and the phone was compeletly off.
I will now wait for the next Emui Update and if this will not help i have to exchange this phone.
Click to expand...
Click to collapse
Can u repeat this " So for fun i powered off my Honor 10 over night and the battery drain was also 20% and the phone was compeletly off." and provide screen shot again??
vistaabalaji said:
Can u repeat this " So for fun i powered off my Honor 10 over night and the battery drain was also 20% and the phone was compeletly off." and provide screen shot again??
Click to expand...
Click to collapse
Sure,
here are the screenshots from last day/night. This is is the result in flightmode.
The phone was in flightmode from approximately 00.15 am until today morning 09.00 am.
In the next days i will power off my phone and send some screenshots but they will look the same...
Penetrator18 said:
Sure,
here are the screenshots from last day/night. This is is the result in flightmode.
The phone was in flightmode from approximately 00.15 am until today morning 09.00 am.
In the next days i will power off my phone and send some screenshots but they will look the same...
Click to expand...
Click to collapse
i need bug report too. can u upload the bug report along with this kind of screenshots. thru bug report dev team can analyse the exact issues and idle drain in flight mode.
vistaabalaji said:
i need bug report too. can u upload the bug report along with this kind of screenshots. thru bug report dev team can analyse the exact issues and idle drain in flight mode.
Click to expand...
Click to collapse
Hello Everybody, sorry for the late reply.
I send the Honor back to the reseller and today it came back.
The display has been exchanged and two electronic components were exchanged (they did not specify which ones).
The problem seems solved with the repair of the phone.
For people who maybe have the same problem i attached the screenshot when the phone was completely powered off.
Thanks for your help
I got 2% drain during night with wifi off and single sim installed!

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Realme 3 Pro's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Bad Battery drain
Using it for two days only. Even with smart power saver and sleep mode on the battery drains pretty fast on standby mode. It went from 13% to 0 in 5 hours(overnight). Which does not happen on my other phone (Asus zenfone max pro m1). Don't know if it is a software thing as the soc is pretty efficient as far I understand and the zenfone runs stock android.
P.S. Why do they remove the screen on time.
P.P.S. I wish the settings app was easier to navigate.
Paranoid_Android_1 said:
Using it for two days only. Even with smart power saver and sleep mode on the battery drains pretty fast on standby mode. It went from 13% to 0 in 5 hours(overnight). Which does not happen on my other phone (Asus zenfone max pro m1). Don't know if it is a software thing as the soc is pretty efficient as far I understand and the zenfone runs stock android.
P.S. Why do they remove the screen on time.
P.P.S. I wish the settings app was easier to navigate.
Click to expand...
Click to collapse
Same here bro , from maxpro m1 to real me 3 pro , now i can feel how fast the charge get drained ,
Jijinjayakumar said:
Same here bro , from maxpro m1 to real me 3 pro , now i can feel how fast the charge get drained ,
Click to expand...
Click to collapse
This has become way too annoying mow. Last night it was 20% I switched on 'Super High Power Efficiency' hoping hardly any power will be consumed as they kill the background processes. But this morning found it switched off.
When I checked the power usage it appears background tasks were running and they hogged up all the juices.
Now I regret not buying a phone with optimized software. I have read other phones (nokia 8.1, mi 8 se) with the same 710 soc and 3k mAh battery runs almost 2 days. Mine lasts barely a day.
mine too, same issue. i am looking for custom rom that can solve the issue
Jijinjayakumar said:
Same here bro , from maxpro m1 to real me 3 pro , now i can feel how fast the charge get drained ,
Click to expand...
Click to collapse
also moved from a Zenfone Max Pro M1, was disappointed by the drain. However after checking power usage details, my camera app was running throughout the night, so I've disabled it for now and am using another camera app.
Paranoid_Android_1 said:
Using it for two days only. Even with smart power saver and sleep mode on the battery drains pretty fast on standby mode. It went from 13% to 0 in 5 hours(overnight). Which does not happen on my other phone (Asus zenfone max pro m1). Don't know if it is a software thing as the soc is pretty efficient as far I understand and the zenfone runs stock android.
P.S. Why do they remove the screen on time.
P.P.S. I wish the settings app was easier to navigate.
Click to expand...
Click to collapse
I didn't face such issue ...
byteslayerq1 said:
also moved from a Zenfone Max Pro M1, was disappointed by the drain. However after checking power usage details, my camera app was running throughout the night, so I've disabled it for now and am using another camera app.
Click to expand...
Click to collapse
How do you disable system apps? Pls tell me.
Guys, I have been using this for few days. For me standby time is excellent, last night it was 26 when I wake up it is 22%: I don't even turn off internet at night.
Probably this might work for you, go settings>battery>screen battery optimization> set it to balanced.
I got my phone yesterday
my battry was also draining fast
after check i found camera app using battery in background
Solution
Disable face unlock- it keeps your camera app ON always so put it off.
yametekudasai said:
How do you disable system apps? Pls tell me.
Click to expand...
Click to collapse
Use adb and pm shell command.
byteslayerq1 said:
Use adb and pm shell command.
Click to expand...
Click to collapse
Hello im new to this can u pls share the link to me on how to do it? Thanks
The camera uses more battery in the background
I don't know why
gandhijv said:
I got my phone yesterday
my battry was also draining fast
after check i found camera app using battery in background
Solution
Disable face unlock- it keeps your camera app ON always so put it off.
Click to expand...
Click to collapse
Did the issue gone after u disable face unlock?
Thank you
I bought it in the first sale and I'm not facing any such issue. I got SOT of 7 to 9 hours depending on my use (I don't play games).
To check the Screen on time on realme 3 pro follow the below steps:
Install Gsam battery monitor
Goto settings > battery
Disable Smart Power Saver
Select 'Custom Power Consumption Protection'
Select GSam battery monitor and allow background running.
This will OS will not kill it and it will be able to measure properly.
riderzecter said:
Did the issue gone after u disable face unlock?
Thank you
Click to expand...
Click to collapse
The problem still exists
got my phone on 13 may sale , after that it received two updates and there is no sign of high battery drainage. I'll check it again today and will report you tomorrow, but as of now battery is working smooth and solid.
spshubham53 said:
got my phone on 13 may sale , after that it received two updates and there is no sign of high battery drainage. I'll check it again today and will report you tomorrow, but as of now battery is working smooth and solid.
Click to expand...
Click to collapse
Update version is?
amazing sot
artmomeymi5 said:
amazing sot
Click to expand...
Click to collapse
Android Q Beta?

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the OnePlus 7's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
Last night, over 8 hours, it fell by 5%.
WiFi
Data
Bluetooth
WiFi scanning all OFF.
Single sim use.
It needs to reduce imo.
Xebeck said:
Last night, over 8 hours, it fell by 5%.
WiFi
Data
Bluetooth
WiFi scanning all OFF.
Single sim use.
It needs to reduce imo.
Click to expand...
Click to collapse
Yes. That's a lot for that settings. Are you rooted? Use betterbatterystats app to check what caused it.
11prathmesh said:
Yes. That's a lot for that settings. Are you rooted? Use betterbatterystats app to check what caused it.
Click to expand...
Click to collapse
Not rooted
Xebeck said:
Last night, over 8 hours, it fell by 5%.
WiFi
Data
Bluetooth
WiFi scanning all OFF.
Single sim use.
It needs to reduce imo.
Click to expand...
Click to collapse
Yeah mine has bad standby drain as well. My previews phone, Nexus 6p, from Android Nougat and later , used to drain just 1% over 8 hours of sleep.
Lolakis13 said:
Yeah mine has bad standby drain as well. My previews phone, Nexus 6p, from Android Nougat and later , used to drain just 1% over 8 hours of sleep.
Click to expand...
Click to collapse
.
.
My 2xl used to have a flat ****ing line bro....
Literally 0% over night.
Never gotten over that still
Xebeck said:
.
.
My 2xl used to have a flat ****ing line bro....
Literally 0% over night.
Never gotten over that still
Click to expand...
Click to collapse
Yeah something is going on with this one . I can confirm that mine OnePlus 7 is draining exactly 5% of battery!
Lolakis13 said:
Yeah mine has bad standby drain as well. My previews phone, Nexus 6p, from Android Nougat and later , used to drain just 1% over 8 hours of sleep.
Click to expand...
Click to collapse
Please understand that this device is just released and OS is not fully optimised yet. I'm sure oneplus will address the issues with upcoming updates. You're previous device must have gone through lot of updates to fully eliminate the bugs to achieve those results
11prathmesh said:
Please understand that this device is just released and OS is not fully optimised yet. I'm sure oneplus will address the issues with upcoming updates. You're previous device must have gone through lot of updates to fully eliminate the bugs to achieve those results
Click to expand...
Click to collapse
Hmm it's not that simple ... Some updates as the one for my previews phone that did that 1% of draining passes through newer phones... As you've noticed my phone was Nexus 6p from 2015 realeased date and the other guy mentioned the same thing for the pixel 2xl whose realeased date was two years later. So having been said that thing, it means older phones of OnePlus have the same behavior or probably worse than the 7 but any has as good as Google phones for example. I hope they will fix it as you've said though
Getting 2% drain overnight, rather consistently. WiFi on, BT/4G off. On newest OS version 9.5.5
Mine drained 3% after 8 hours of standby 4G volte is on WiFi on and everything else is switched off.. coming from s8 plus i consider this as a great standby [emoji28], usually my s8 plus will drain around 5 to 7% after 8 hrs of standby
Sent from my GM1901 using Tapatalk
Never tested how much standby drain I get at night but compared to the Mi9 it's much better!
Don't know what's happening, but I'm losing more than 30-35% from 3-4 days. Phone's not rooted, so I'm having tough time to find culprit.
Same setting on OP7, overnight drop 8% at latest, even already enabling battery saver mode, only installing 14 apps, a little bit disappointing.
4% within 7h44m = 0.5%/h:good: overnight with dual sim mobile network enabled, wifi off.
I had like 3% drop on 4.30hrs overnight. Usually sleep at 1.00AM and wake up at 5.30AM, went on 79%, woke up on 76%. Dual sim on, Wifi On. mobile data bluetooth and all other connectivity settings are turned off.
I still get 7% of drain overnight. It doesn't get any better.
Today I left the wifi on and drained 13%.
strongst said:
4% within 7h44m = 0.5%/h:good: overnight with dual sim mobile network enabled, wifi off.
Click to expand...
Click to collapse
0.3%/h, same setup
Accubattery stat shows 0.5%/h. I guess average for Android, but not particularly great.

Standby drain

When you sleep, does your phone sleep, or does it stay up all night and crunch 1s and 0s? Rate this thread to express how you deem the speed at which the Samsung Galaxy S21 / S21+ / S21 Ultra's battery drains under standby conditions. A higher rating indicates that when the phone is not in use, the battery drains minimally.
Then, drop a comment if you have anything to add!
S21 Exynoss, while standby battery is fading away for some reason...
Gizmo_x said:
S21 Exynoss, while standby battery is fading away for some reason...
Click to expand...
Click to collapse
Latest OTA introduced some bug. I tried fixing it with wiping cache, it does not help. Others tried wiping whole phone, does not help either. Just gotta wait for Samsung to fix it...
I think disabling location scanning with wifi and bluetooth fixed the drain for me.
Did all the battery saving tweaks available on my regular Exynos S21 (including location scanning with WiFi + Bt), but I'm still experiencing from 3-3.5% idle battery drain. I'm seriously considering a return but have only two remaining days to decide.
HugePotato said:
Latest OTA introduced some bug. I tried fixing it with wiping cache, it does not help. Others tried wiping whole phone, does not help either. Just gotta wait for Samsung to fix it...
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Experiencing the same.. After February patch the idle drain on mobile data is crazy high. Losing around 6-7% per hour in idle.
5-6% is premium... once i plug off the device from charger in around 5 hours standby (no wifi, 4g, nfc, bt active) 20% battery drain... this is crazy..
Sorry everyone, I did not fix anything. It seemed like this for me yesterday but it went to s*** at night. It's faulty OTA and Samsung is apparently aware of the issue. We have to wait for the update unfortunately... Nice QA
HugePotato said:
Sorry everyone, I did not fix anything. It seemed like this for me yesterday but it went to s*** at night. It's faulty OTA and Samsung is apparently aware of the issue. We have to wait for the update unfortunately... Nice QA
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can you put screenshot after you pull off wall charger and phone standing in standby how much battery will fade in few hours with turning off wifi, 4g, bt bla bla?
Gizmo_x said:
can you put screenshot after you pull off wall charger and phone standing in standby how much battery will fade in few hours with turning off wifi, 4g, bt bla bla?
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What for if I may ask? I'm basically using it with wifi all the time and VoWIFI so not sure it even uses mobile atm, bluetooth off as well. Still draining
Hi everyone. I don't think I have the same issue you say after february update. What I have realised is that DQA service, that you can see in System apps, takes more than 100% of battery used since last full charge. I usually plug the charger when the phone is around 20% and I stop it when its about 80%, so I wonder if that service is adding % because it needs to count since the very beggining of battery %, I mean, 100%.
Edited: I left the phone in plane mode last night at 10:30 with 80% till 6:30 this morning, having changed to 78%, so it's a normal drain of battery, I think.
I´ll try this weekend with carrier range on in 2G and will comment.
today there was new update for s21 series. let's see what happens with it.
Installed today's new update and it seems to have sorted the drain.
Let's see how it goes overnight and a full day tomorrow.
In what country is the update available?
Installed package disabler and naptime.Will let you know bit if made difference
petiolarissean said:
Installed package disabler and naptime.
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ADB AppControl > If so, can you post what apps you disabled from Safe or Basic ?
Any other tweaks ?
For those who read XDA from Spain, the second February update to solve battery drain while using 4G has already been released today in that county.
This video was useful for two S21 settings and setups for me
Hello folks, I got my first Samsung phone (S21 5G Exynos) around mid of Februar. The Phone installed the latest Firmware/Software (AUB8) without problems. What really chocked me was the drastic power drain during standby in the nights. Overnight in standby, always about 30% (!) battery drain. Regardless whatever settings, powersavings etc. That's about 3% per hour loss (in standby!), absolute crazy.
Yesterday I found somebody in the QXDA forum that suggested:
TURN OFF the VoLTE ==== Bingo!!!
I have now only around 5% loss during the night in standy (5G activated, power saving turned off)
Thank's a lot for the help through this forum.
I hope Samsung brings an update with optimized lower VoLTE power usage.
hello
Thanls @Mickepilot for the tips
Personnaly i put my S21 in airplane mode all the nighty and i loss 1 % for 7 hour, it's really correct and i don't for call during my sleep )
Unfortunately, Samsung did NOT fix the standby drain issue with ACTIVATED "VoLTE" in the new "AUBB" update. The battery still drains about 3% per hour with "VoLTE" selected ON.
However, with "VoLTE" switched OFF, I get only about 0.5% drain per hour. Same as before the update.

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