Apple Watch Battery Draining suddenly after Software Update

Was having the same dead battery issue and it took forever to charge.. So I just turned it off and turned it back on and it seems to be holding a charge so far! Did not try updating it.

Same happened to me as well, it’s just crazy, my watch’s battery is dead in a few hours!

Yes I did it after your response. It really helped with me. Thanks

Same issue, I deleted the OS 10.4 download from Storage in the Watch App and turned off the Automatic Updates.

My battery is back to normal and no longer draining.

Same issue, I deleted the OS 10.4 download from Storage in the Watch App and turned off the Automatic Updates.

My battery is back to normal and no longer draining.

How do you delete the 10.4 file from that place? I see all the apps, but not ios. Also, even when i touch the app it doesn't give me an option to delete. thanks.

Same issue with AWU2. It started a few days ago. Kinda returned to normal for a day or so, but started draining quickly again today

Full charge last night at 10:30 - Wore it for my alarm. 33% charge at 6 this morning. Charged if for 30 minutes. It now just went to power save mode at 11:20 AM

I am trying to follow this but the OS is not showing up under storage. Is there another way to access this? Thank you

F/U. I called Apple support and they started a case. Appears to be a software issue.

For me, updating the watch to the latest SW update fixed it for me.

Same problem. Charged to 100% before I went to sleep. Off charger. 51% when I woke up. Did not use in between.

No chance I'm doing that. I'd rather put it in a drawer.

I updated phone and watch last night and now my watch is back to normal. I really thought it was just me until I saw this thread.

I fixed it by using the watch a day on battery savings mode and a day using a watch face that’s mainly black (with an almost on screen). After that, battery behaves normal again.