You'll hear this a lot. Clear cache and restart after installing.

[neverfear]

At first, battery life dropped well below what I was getting before I installed the Android 10 One UI 2 beta. But battery life improved dramatically after clearing cache and restarting. Big difference. 

[SamsungUSABetaTeam]

Thank you for the valuable tip. We appreciate your contribution to the Beta community.

[Anonymous]

How do you go about clearing cache?

[neverfear]

Device Care, Storage, Clean Now.

[Anonymous]

thanks