S21 Ultra battery drain

[ErnAqui12]

Why is it like this? 

9 hours of no activity, 17% battery decline? 

Is it normal ? Thank you for your answer

[Khaled75]

No. It's not.

[butete]

wipe cahe partition

[ErnAqui12]

How

[butete]

https://youtu.be/AOLduvCLgEQ

[ErnAqui12]

Will it reboot or leave everything as it is?

[butete]

yes it does not affect data,

[ErnAqui12]

I tried what you told me and what happened was, after fully charging my phone up to 100%, it dropped 1% after 20 mins without activity, and another 1% again. Nothing changed. Any other ways to bring back the performance of my phone?

[SamsungRightCare]

Hello ErnAqui12,

Thanks for reaching out to us. We are here to help.

Hope our dear Samsung Members satisfied your inquiry.

In addition, please find below link about Tips on how to manage your Samsung Galaxy device's battery.

https://www.samsung.com/ph/support/galaxy-battery/charging-tip/ 

Hope this content helpful and your problem gets solved.