Original topic:

One UI 4 battery drain tremendous fast

(Topic created on: 11-20-2021 07:40 AM)
KV1999
Active Level 6
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Galaxy S
After upgraded one ui 4 in my S21+, battery drain tremendous fast. In standby mode (screen off), never use the phone over a night. From 98% drain till 84%, it drain 14% battery!! In android 11 one ui 3, over a night, it only drain 5%. Samsung please fix this! 
9 Comments
MaslizaAzahari
Active Level 7
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Galaxy S
That's why I'm still sticking to Android 10
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LazyOldBear
Active Level 1
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Galaxy S
I need to charge my S21U twice a day now was able to last one day plus before OneUI4.0 🙄
toash
Active Level 3
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Galaxy S
I too have battery drain issues with one ui 4 on my s21... 🥲
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atal
Beginner Level 3
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Galaxy S

Hey Samsung.. Please fix the idle battery Drain on UI 4.0. Idle battery drain

overnight in 13%. On UI 3.0 it was only 5 %. 

0 Likes
Rosi-Han
Beginner Level 2
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Galaxy S
I also hv same issue with my s21+
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aruntdpa
Beginner Level 2
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Galaxy S

Even I am facing the same issue since performing the One UI 4 upgrade today morning.

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LandyMan
Beginner Level 3
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Galaxy S

Same on my S21 Ultra ... from 85% this morning at 6:30am, it is down to 39% 6 hours later, with minimal use. ridiculous!

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KV1999
Active Level 6
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Galaxy S
After the latest update, it much more better. Overnight no use the phone, it only drain 3 to 4%.
But when in use just clicking here and there, then drain fast.
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niams1u
Beginner Level 3
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Galaxy S

s21 ultra  with one ui4 was battery crazy fast drain, 

before this we can use battery saver with the display 120hz but now cannot

previuosly able to get 30 hour++ standby with 4-5hours sot, now only  24 hour standby with 2-3 hour sot 

this is very sad

my wife iphone 13 can go up to 9hour sot, that is with default setting

i feel like being cheated with samsung and android,

if cannot build good system, why sell expensive as apple ???