I spent a month or so with bad battery before doing all this stuff and have also let it “settle”let the watch working through 3 days without modifying its settings... and see after that if battery consumption improves
it doesn’t matter
trying to think back I think the bad battery started around the time of iOS 13/watchOS6
what does the watch need to do for three days anyways? We don’t have very much data to index and regardless why wasn’t that needed before when it was brand new?
why would turning off WalkieTalkie or GymKit or Podcast sync cause three days of battery drain?
If I had to guess this could be solved if Apple allowed for true clean installs of WatchOS. I suspect something is corrupted that doesn’t get cleared out on re-pairs or upgrades that’s causing this.
now for the people who wonder why I/we would care about still getting 18-20 hours, it largely is because I use the watch as my silent alarm and I now can’t charge it just once per day. I have been having to charge before bed, when I get into work, and before leaving work.