Not the same problem but my AW7 is behaving strange with the battery indicator. A week ago i started up the watch and it said i have 10% charge left and went into low power mode. I was a bit confused as i always turn it off before i go to bed and it was at around 65% when i turned it off. I was thinking i didn't turn it off properly so i restarted the watch and it showed me 65%
Since a few days it repeats this kind of behaviour. Three days ago i started it up, it was turned off at around 70% and it said i was too low on charge so it went into showing the time only mode. I restarted to no avail. Then i put the watch onto the charger and it charged from a few percent to 90% in 15 minutes.
I did an unpair and re-paired with a clean install and updated to watchOS 11.2. Th drain after the install was a bit more than usual but not extreme. In the evening i charged it to 100% and turned it off. The next morning when i turned it on it was showing 100% and immediately jumped to 99%. The whole day the drain was nothing unusual. So far so good and i turned it off at 67%.
Then this morning i started the watch. It showed 65% and then went into an automatic reboot. When it was restarted it was showing 10%
i kept it on my wrist for an hour and the percentage did not drop. I restarted 2 times and still it was showing 10%. Then i put it onto the charger for 2 mins and it jumped to 14%. I restarted after that and it was showing 49%.
As the drain (when it's on) is quite normal i don't think the battery itself is at fault but there is something wrong with the software. My battery health is at 88% using iOS 18.2 on my 15PM, the watch is on 11.2
When i sleep i use my old AW0 as sleep tracker and it behaves totally fine.
TLDR; the battery indicator is totally messed up and i already did an unpair/-repair but that did not help. It's not a common problem but there are some cases when you search the internet that the Watch shows 10% even though in reality it has more charge.
