Battery problem after update

[JattAsr]

I am facing battery fast drainage issue in my note 20 ultra since i updated it to android 13 . Earlier i used to charge 2 times a day but now i have to charge 3 times in a day. Kindly resolve this issue 

[Guanche01]

Yes, I've had the battery drainage issue as well on my Note 20 Ultra. On top of that, I've had network issues also, where my call quality has been compromised. 

[cs_member8]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We acknowledge your query and apologize for the same. To resolve your device battery drain issue please visit this link: https://www.samsung.com/in/support/mobile-devices/how-can-i-optimise-and-extend-the-battery-life-on-...

In case the issue still occurs. Please 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