RuchirRohan
Active Level 2
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Galaxy S
Hey all, I'm writing this regarding my new, a week old S21+, on which I'm having a considerable battery drain. My battery lasts for about 2 days on standby but whenever I use it for the most day-to-day tasks, I manage to get a SOT of ~5h 20min. I don't game on this phone, neither do I have heavy apps that might drain the battery. Any help would be greatly appreciated✌️.
Model: S21+ 5G E2100 Indian Model

A little side note: This is my second S21+. I had to return the first one because of its heating issues but that device used to give me a whopping 8hrs 30mins easily. The second one(the current device), however, has no heating issues but has battery drain. Both the devices were on the same software (May) update.
12 Comments
Hualngo
Active Level 7
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Galaxy S
Turn off wifi scanning
Turn off auto sync
Turn off auto brightness

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RuchirRohan
Active Level 2
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Galaxy S
How do I turn off WiFi scanning?
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Hualngo
Active Level 7
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Galaxy S
if you not done yet then do some settings to save more battery life and observe for next 1-2 days, it will give a noticeable difference

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

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

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>click on 3dot at top right corner>automation>adaptive power saving
C. Device Care > Battery> More Battery Settings>Adaptive Battery


4. Long press on each app specially 3rd party app(LIKE FACEBOOK, YOUTUBE) and rarely used apps and also ON "GOOGLE APP" as well, then click on>app info(ibutton)>> 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 you not using that apps much, 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> Manage account > check which 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 weather settings (icon)> 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.
Hualngo
Active Level 7
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Galaxy S
Bro, try the above settings, you will see battery life increase by atleast one hour
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RuchirRohan
Active Level 2
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Galaxy S
Ahh thanks a ton. Will surely try it out and will update it after a few days. ✌️
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Hualngo
Active Level 7
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Galaxy S
Sure bro, earlier I only got 5 hrs S.O.T on my S20FE, but after I tried the above steps, I perform the following step
I usually got 7.30 to 8 hrs.
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RuchirRohan
Active Level 2
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Galaxy S
It's been almost 4 days now, and I'm really in short of words to thank you. I just checked my SOT and it's now up to 8 hrs 8 mins yesterday. So it ACTUALLY WORKED!!! Thanks a ton for that!!!
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Hualngo
Active Level 7
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Galaxy S
And remember to maintain battery health. Make sure you dont always do a full charge.
Or atleast perform a healthy charge i.e 20%- 80% atleast thrice a month. Ive been using My S20FE for almost 5 months now, battery health is still at 94%
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RuchirRohan
Active Level 2
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Galaxy S
Oh🤔 How do I check my battery health tho?
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