Standby drain - Samsung Galaxy S9 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 Samsung Galaxy S9'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!

overnight, my S9 battery drops 10% on nothing. previosu S7 drops 2-3%. dont know why, oreo is not yet ready for use i think..

If you uesd AOD, I think it is drained the battery over night

Aod is turned off from 22-07 hours
(10pm-7am)

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 Samsung Galaxy S9'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
I think there's a gremlin in my phone because I'm sure it's always draining. This battery sucks!

Just got this phone moving from an iPhone and this is crazy. Battery drains because you turn the phone on. Overnight with AOD off and DND on it still drains about 10%. At work never touching the phone for 8 hours I lost about 15-20% but my iphone lost 7% sitting in the same place with the same apps and notifications. I really Iike this phone so I'm here to hopefully find some non "root and run another OS" options.

i was having same issue, i did a a backup and reset then manually added back the photos to my phone, later i installed the apps back again and went to settings of each app and turned off background mobile data usage for each and also stopped app from running in the background except important ones.
The overnight battery drain went from 10-15 percent to 5-6%

i have s9 from 2 days and the battery drain is very esagerate. this phone is the most bad i had ever for battery.... perhaps we must low resolution???

BetterBatteryStats is now available with no root as well (configuring using ADB). This might help to track down the issue.

Just put your phone on airplane mode before you sleep. I do it every night as it loses like 1-2 percent.

stevenl23 said:
Just put your phone on airplane mode before you sleep. I do it every night as it loses like 1-2 percent.
Click to expand...
Click to collapse
My phone actually drains more battery, when on airplane mode. I tried to turn off only the mobile and wifi data off and now it drains a lot less.

DoRiLoN said:
My phone actually drains more battery, when on airplane mode. I tried to turn off only the mobile and wifi data off and now it drains a lot less.
Click to expand...
Click to collapse
Thats surprising, do you know why? When its on airplane, logically it there won't be any updates coming to the phone and such lower battery drain.

my problem is solved. i has some fingerprint issues, and device is 1 month old so i went to samsung store to check it. they tested it few days and probably reflashed latest firmware or something, now i nave 3% drain overnight like on S7..
so go to service or flash yourself newest firmware thru odin..

tinko975 said:
my problem is solved. i has some fingerprint issues, and device is 1 month old so i went to samsung store to check it. they tested it few days and probably reflashed latest firmware or something, now i nave 3% drain overnight like on S7..
so go to service or flash yourself newest firmware thru odin..
Click to expand...
Click to collapse
Did you try factory reset before that?

I tryed everything.
Now is good. Original firmware which was on device originally was somehow corrupted. Did not working as should work. That was explained to me in store after repair.
Nothing is turned off overnight. Just silenced ringertone. Wifi bluetooth etc active.

tinko975 said:
I tryed everything.
Now is good. Original firmware which was on device originally was somehow corrupted. Did not working as should work. That was explained to me in store after repair.
Nothing is turned off overnight. Just silenced ringertone. Wifi bluetooth etc active.
Click to expand...
Click to collapse
I will try to do that as well. So they flashed from scratch the very same firmware you had from the start? (region)

Yes. Factory reset and clean flash latest firmware. When phone do ota update it update only part of firmware where are changes. If you flash whole firmware Than it is no just update. It is whole 4 Gb of new firmware.

tinko975 said:
Yes. Factory reset and clean flash latest firmware. When phone do ota update it update only part of firmware where are changes. If you flash whole firmware Than it is no just update. It is whole 4 Gb of new firmware.
Click to expand...
Click to collapse
I was thinking since there is a firmware corruption issue, it's the firmware itself.
I did a factory reset and nothing happened. I'll try to do a clean flash tomorrow. If that doesn't work, I'll try another region. If that doesn't work, I might have too many stuff active

doriandiaconu said:
I was thinking since there is a firmware corruption issue, it's the firmware itself.
I did a factory reset and nothing happened. I'll try to do a clean flash tomorrow. If that doesn't work, I'll try another region. If that doesn't work, I might have too many stuff active
Click to expand...
Click to collapse
Tried this?
https://forum.xda-developers.com/galaxy-s9/how-to/poor-battery-life-maybe-resolved-t3808396
I'd already done it when I got the phone

tinko975 said:
Yes. Factory reset and clean flash latest firmware. When phone do ota update it update only part of firmware where are changes. If you flash whole firmware Than it is no just update. It is whole 4 Gb of new firmware.
Click to expand...
Click to collapse
How is your battery drain during the day with normal usage? (after reading the forums and reviews I have fear about battery life during the whole day usage). thanks.

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 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 Samsung Galaxy Tab S4'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!
With Wifi on and Blue Tooth on, was very decent. Averaging around .42% (30.9mA) or less per hour, and last night I think I really did well at only 2% decline over a 12 hour period.
I'd say battery drain is fairly good on this device.
On airplane mode there is virtually zero battery drain. It doesn't lose any % over the night
First time I bought Tab S4 for my wife (64GB version) I turned on Airplane mode then turned on the WiFi + connecting it to my home WiFi.
It stay on standby for 10 days straight & when I checked it still have 50% battery.
I didn't test my Tab S4 256GB version though.
Mine is just draining like crazy even when I am not using it. I've had the tablet for 7 months now, and battery started to drain while unused last week. Let's say I have 100% charge when going to sleep and wake up with 60% of charge remaining. Before, I would drop only to 98 to 97% percent. Anyone with this issue? Anyone solved it? Shall I return the tablet?
ddv333 said:
Mine is just draining like crazy even when I am not using it. I've had the tablet for 7 months now, and battery started to drain while unused last week. Let's say I have 100% charge when going to sleep and wake up with 60% of charge remaining. Before, I would drop only to 98 to 97% percent. Anyone with this issue? Anyone solved it? Shall I return the tablet?
Click to expand...
Click to collapse
Well first off.... I don't think you can return a tablet after 7 months of use.
Second, you said it started recently. What new applications have you placed on it? Updates to applications included. If you have something that monitors the battery drain per application that would be helpful. Since its new you could upgrade your tablet to the new Pie update might help out.
Personally I have had nothing but great luck on my tablet.
I've got the same problem. Brand new S4 LTE on ATT. sitting in my bag, unused, its draining 5% an hour. So I enabled Airplane Mode to cut the Mobile Connections and BT then enabled Wifi Only. Overnight I lost 20%. I'm going to run a new test: Charge to 100% then let it sit for 24 hours in WiFi only and see what happens. I may give a factory reset and set it up completely from scratch to see what happens. If it continues, I'll sell it and Get a Huawei MediaPad M5 Pro. My last 3 phones have been Huaweis and I love them. I like the UI on them and adaptive Power saving is stunning. And Huawei has the in my opinion the email and calendar app. They are linked and I can turn emails into calendar appointments. Thought I was going to Love this S4, so far I only like it and the battery issue is really irritating me. And mine weighs in at 516grams to a claimed 483 ....
No probs here, best tablet ever even comparing to iPad.
Sent from my SM-T830 using Tapatalk
my tab S4 is 3 month old and it will only do 5 hours web surfing on wifi. previously it used to last for more than 10 hours. I tried to factory reset, it didn't work. then, I tried updating to pie and it didn't work either. any suggestions
One week of standby use all the battery (with wifi on), it's normal or I have some drain?
Tapatalked with A8 2018
I have the same problem, no clue how to fix this. I'm looking for a good iPad deal now...
Made an BetterBatteryStats Dump but this shows no problems: https://forum.xda-developers.com/showpost.php?p=80827125&postcount=36696
A few days ago I had battery drain too. It was related to Samsung Internet. Uninstalled and reinstalled it and the drain went away.
I'm getting some drain from time to time and the cause seems to be the smart scan (Iris+ face unlock), sometimes it crashes and the processes are stuck running constantly in the background.
The kernel wakelocks according to Betterbatterystats are "video6" and "video5"
And the process that is running in the background is "[email protected]"
A restart solves this drain but eventually it'll come back.
I also had the drain issue after the pie update. I installed WiFi automatic after realizing the drain seemed to be related to no option to allow WiFi to turn off when tablet asleep. I have now set it to turn off 2 minutes after screen off. Just went 20 hours of standby losing only 2%.
I also have a standby drain issue, but it even persists when the tab s4 is powered off. I was away for about 26 hours and I charged the tablet and turned it off before I left. I also unplugged it. When I got back, it was down to 49 percent, after sitting off for 26 hours. I'm not sure what's causing it. It's only been happening for a few weeks or so. It also happens when the tablet is on but in sleep mode.
Battery life in general seems to be worse overall.

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 ASUS ROG Phone II'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!
Drained 10% in 9 hours
I have my new ROG Phone II drained 10%(93% -> 83%) in the first night (9hours). Without battery saving mode, wifi and GPS turned on. Facebook, twitter, whatsapp and telegram running in the background. Is this normal?
Its a lot lol, it should not discharge more than 1-2% over night but you kept everything enabled which is a stupid move.
rickymohk said:
I have my new ROG Phone II drained 10%(93% -> 83%) in the first night (9hours). Without battery saving mode, wifi and GPS turned on. Facebook, twitter, whatsapp and telegram running in the background. Is this normal?
Click to expand...
Click to collapse
Seems to be within expectations, but you could improve the time with few tweaks.
Standbydrain over night is very low, does not even drop 1%(!!) WiFi/data turned off ? (I use Naptime to force doze)
rickymohk said:
I have my new ROG Phone II drained 10%(93% -> 83%) in the first night (9hours). Without battery saving mode, wifi and GPS turned on. Facebook, twitter, whatsapp and telegram running in the background. Is this normal?
Click to expand...
Click to collapse
Mine drained 10% with WiFi, data and Bluetooth off in Super Saving mode. I wonder if its due to poor mobile signal reception inside my home cos if I turn on Airplane mode overnight, I get only 1 to 2% battery reduction.
Check what app is use power. I got rog and problem is google play service - in my case use about 23-25% from charge to charge.
This problem is not in this phone but others also. We need to wait till google or Asus go and fix it.
farmer510 said:
Check what app is use power. I got rog and problem is google play service - in my case use about 23-25% from charge to charge.
This problem is not in this phone but others also. We need to wait till google or Asus go and fix it.
Click to expand...
Click to collapse
check whether the google photo is running at the background. this happened to me, when I migrated from my old phone, when I run the google photo, it seems that it will do a lot of thing over the next few hours in background until the OS kill the process off.
drains 2-4% per h if you disable everything from stock, so whats the point in have this phone if u berly use it if the phone dies in few hours
Not much to say. Hardly any really
I have the ambient lock screen on. So there's always a clock showing. Went to sleep last night, leaving wifi, data and bluetooth on, at 88%. Woke up this morning after 5 alarms and notifications throughout the night at 86%. Was asleep for around 8 hours.
I just had 8%drain over night (6h). The only thing I changed recently was system update from 44 to 64 WW. That's up from previous 2% over 8h from ww.44
Battery is the worst ever. My Sony Xperia 1 with 3300 mAh battery is better.
Google services finishing off 45% of my battery always. Tried everything nothing works...
My standby drain is back to 1-2% over 8h once I rolled back to WW.35, so if you are having worse standby battery life on WW.64 you might wanna roll back too.
This was not Google services related, I had like 1% max of Google services, there is something weird with WW.64 for some users about that specific drain.
Maczuga said:
My standby drain is back to 1-2% over 8h once I rolled back to WW.35, so if you are having worse standby battery life on WW.64 you might wanna roll back too.
This was not Google services related, I had like 1% max of Google services, there is something weird with WW.64 for some users about that specific drain.
Click to expand...
Click to collapse
how do you do a roll-back? flash the old WW.35 like normal flash?
GAME ON said:
how do you do a roll-back? flash the old WW.35 like normal flash?
Click to expand...
Click to collapse
I just flashed the RAW WW.35 like it was an update, but in my case I was coming back from GSI rom (with WW.64 base), so I had to do a factory reset too, dunno if that's going to be the case here.
Maczuga said:
I just flashed the RAW WW.35 like it was an update, but in my case I was coming back from GSI rom (with WW.64 base), so I had to do a factory reset too, dunno if that's going to be the case here.
Click to expand...
Click to collapse
Like copy and paste the firmware into root like a normal update? What's GSI btw
Not anymore
I had 1 or 2 % over night with WiFi,gps,4G and notifications ON . I disabled the Optiflex and now I get 0% .Went to sleep at 70% and woke up at 70%. Was asleep for around 10 hours .
10% for 9 hours is normal.its around 1.111% per hour.so approx 1%/hour...with 100% your phone can last for 99 hours.
---------- Post added at 04:29 AM ---------- Previous post was at 04:28 AM ----------
DiBarbosaCod said:
I had 1 or 2 % over night with WiFi,gps,4G and notifications ON . I disabled the Optiflex and now I get 0% .Went to sleep at 70% and woke up at 70%. Was asleep for around 10 hours .
Click to expand...
Click to collapse
try doing it again without wifi.im sure the battery is gonna drain more...
and im not judging but providing a screenshot would help.
HermesHidayat said:
10% for 9 hours is normal.its around 1.111% per hour.so approx 1%/hour...with 100% your phone can last for 99 hours.
---------- Post added at 04:29 AM ---------- Previous post was at 04:28 AM ----------
try doing it again without wifi.im sure the battery is gonna drain more...
and im not judging but providing a screenshot would help.
Click to expand...
Click to collapse
10% drain over 9 hours (over night?) is not normal.. Unless you had 4G turned on and a bit bad reception.. ? With WiFi and 4G turned off at night, it should not drain more than 1-2% MAX over night (10h). Mine usually drains 0-2% over night
stiffis said:
10% drain over 9 hours (over night?) is not normal.. Unless you had 4G turned on and a bit bad reception.. With WiFi and 4G turned off at night, it should not drain more than 1-2% MAX over night (10h). Mine usually drains 0-2% over night
Click to expand...
Click to collapse
erm you read wrong...hahaha.i said its normal.

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...
Click to expand...
Click to collapse
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
Click to expand...
Click to collapse
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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