Battery drain

I recall seeing a post in this forum pretty recently where yes, the betas are causing battery drain issues for some, and have been known to do so in the past as well.

 

Yes. Scroll down a few threads.

https://forums.macrumors.com/threads/high-apple-watch-s4-gps-battery-drain-on-ios-13-pb.2188476/

 

Yes!!! In the past few days but Ive hat PB13 on my phone since it was launched. I recently installed the August Home app for a door lock and thinking that's it.
I could go to bed at 100 and wake at 89-91 now it is more like 60

 

I concur. I was experiencing horrible battery drain until I got my watch onto the latest WatchOS 6 Beta 4.
Phone is on iOS 13 Beta 5.
Now it seems to be almost back to normal.