So like many here, after updating to 10.1, SE 2 battery was basically non existent. It was especially crappy for me as I just migrated to my first iPhone and Apple Watch a month ago, so with the watch, pretty disappointing experience. That’s neither here nor there though. My watch would barely charge to as well. Surprisingly, there’s like zero info I could find of the beta fixes this issue, so I opted in and took the chance.
To get the watch to charge up past 50%, I had to put it in power save mode. I’m glad to say the beta did solve the issue and I’m getting better battery life than I did before. Over an hour since I updated and still at 80%, I only charged it up that far. I hope this info helps some others to actually use their device until a patch comes out for official.
I haven’t tried 10.2, but I did upgrade the phone to 17.1, and deleted the Moby app on the watch. It seems to be fine now. The bugs that were in the diagnostic log aren’t there anymore.