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Original topic:

very high battery drain on s21 after last update

(Topic created on: 17-05-2022 08:47 PM)
Tesohh
First Poster
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Galaxy S21 Series

Hello, I recently installed an update on my S21 and there's some crazy battery drain.

I literally used it for 2.5 hours and it's at 28% (i even charged it a bit)

If you want to see my app usage:

Screenshot_20220517-213406_Device care.jpg

Screenshot_20220517-213438_Digital Wellbeing.jpg

2 REPLIES 2
Glenntech
Big Cheese
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Galaxy S21 Series
Maybe good to do a clear of the Partition Cache of the phone.
Do you use any third party themes, as these can use a lot of battery if it's not optimised for the software properly
At worst backup your data a do a factory reset
Personally I would try the clearing of the Partition Cache first

https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/
Lenacheney
First Poster
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Galaxy S21 Series

Yup my base s21s battery is terrible after the last update.  I went from getting around 7 to 9 hours sot over 24 hours of use to 2.5 hours sot with 28% left over 15 hours of usage today. I'm so mad. I also own the s22 and got great battery life until the last update on this today. I'm pretty fed up with samsung. I have the flex alpha 2 and had to send it in for battery issues and got it back with physical damage and still a bad battery 

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