Battery drain issue since one UI 3 update when phone is idle

[Man1998able]

My phone drains quickly when not in use since the new One UI 3.0 update and works fine when using the phone. 

[iamrohitkm]

Yes bro I am facing the same issue on my S10 also with one ui 3. I think they still need to optimize it.

[HarpreetMakol]

Experiencing the same issue with my Note10Plus device as well, battery performance got worst...

[Dilli]

It is obvious the battery will drain in idle condition. There are many factors working in background .
1. your sim is communicating with the tower.
2. Many apps are using wifi, GPS and working in background.
3. for all above and your phone to be in ON position requires battery 🔋 so battery is consumed.

[Ehsank]

If after update then wait for few days, and as of now perform these below steps;

A. Wipe Cache Partition.

Steps to perform.

1) Turn off the device.

(Connect with type C cable and connect withpc/laptop only for Android 11 )

2) Press and hold the Volume Up key and the spower button.
3) When the Android logo displays, release all keys.
4) Press the Volume down key to navigate and select "Wipe cache partition".
5) Press Power key to select. When the wipe cache partition is complete, Select Reboot System.
6) Press the Power key to restart the device.

B. Reset App Preferences.
Settings >Apps> Tap on Top Right 3Dots and select Reset App preferences.

C. Go to settings >general Management >reset>reset settings.

[Ehsank]

and further one of the main reasons of battery drain is background activity,
even you close apps but they uses ur battery and running in background unnecessary, see image(1) and read the statement.
2nd due to huge notification options.
for e.g ; Google has huge notification which we don't need at all see image(2) just scroll up and down and check how many notification it does have.
So do these settings to stop, which consume battery unnecessarily.

1. Settings>>Connection>more connections settings> disable nearby device settings

2. Settings>>Location>improve accuracy >disable
A. Wifi scanning
B. Bluetooth scanning .

[Ehsank]

Besides above settings do some more settings to save more battery life and observe for next 1-2 days, it will give a noticeable difference

3. Device care>battery >power mode>select "optimised" and "adaptive power saving".

And then click on "app power management >
And enable these 2 options.
A. Adaptive battery
B. Put Unused Apps to Sleep.

FOR ANDROID 11;

A. DEVICE CARE > Battery>Background Uses Limit > Put Unused App to Sleep

B. Device Care > Battery> More Battery Settings>Adaptive Battery

4. Long press on each app specially 3rd party(LIKE FACEBOOK, YOUTUBE) and rarely used apps and also ON "GOOGLE APP" as well, then click on>app info> then go to these 3 options below on by one

A. Mobile data> allow background data usage>off

B. Battery >allow background activity >off

C. Notification >disable unnecessary notifications like promotional and unnecessary reminder notifications.

5. Go to settings> privacy > permission manager > location> and check which app have accessing your location all the time and if not using that apps then deny access or set as " allowed only while in use"
As unnecessary location access by 3rd party app causing battery drain.

6.  Go to settings > Google > on device sharing> check which 3rd party apps present there for e.g. if you use paytm , paytm will  shared data to show recommendation and suggestion which also cause battery drain

7.  Go to settings > account and backup> account > checkwhich app syncing automatically there and if any app which not necessary to auto sync then click on it and disable sync.

8. Go to settings >apps>search "weather" >click on settings icon right side > change "auto refresh" settings as per your requirements and disable some unnecessary reminder. ( due to auto refresh it continuously consuming battery)


9. If you use Facebook frequently then disable "auto play video"
And if you are mostly uses mobile, on wifi connection then also disable "auto play videos" in YouTube.

10. Settings>>Google >click on 3dot at right top corner>usage and diagnostics >off this option.

[Samsung_Support1]

Dear Samsung Member,

Greetings from Samsung Customer Support!

To resolve your device battery drain issue please visit this link: https://www.samsung.com/in/support/mobile-devices/samsung-mobile-battery-drain-issue/

For further assistance, register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support