Apple Watch 10 Battery Drains 3 times a day; All Recommended Fixes Have Been Applied.

My Apple Watch 10/Cellular battery drains rapidly … this morning 100%-35% in 2 1/2 hours. Prior to this, it drains from 100% to zero at least three times a day.

This is a (supposedly) new watch Apple sent me on October 14, 2025. I have updated it religiously. I have waited a week after each update for all the internal updates and app updates to finish. This has been done three times, since Watch OS 26 first came out and now it is running Watch OS 26.2.

Sometimes when I look at the watch … this happens whether I am wearing it or it is on the charger, the screen goes black and there is a little spinning circle in the very center of the screen and then after 30 or so seconds, the screen comes back on.

I have done everything recommended. I have turned off 99% of the notifications I had been receiving, I have rebooted it, I have turned off every single Apple product I have, waited 10 mintues and turned them all back on; I have unpaired and repaired this Apple Watch 10. I have unpaired this Apple Watch 10 and repaired it as a NEW watch, without saving any of my old settings.

Nothing works.

Any suggestions?