I’ve had a series 4 since it launched. Been great and battery life has been solid. All of a sudden, for the last couple of days the battery has been draining very fast. No change in usage or apps or anything. Last night and the night before it went to power saving mode before 8pm. Usually at or close to 50% by that time is usually. It’s not 8:30am, been off charger for about 90 minutes and it’s already dropped to 79%. Can’t figure it out. Anyone else see anything like this? Don’t want to do a full wipe/re-pair if I can avoid it.