Apple Watch Ultra battery draining while on charge after updating to OS 10.1

I had the same issue with my Ultra 2! I saw on another string that Mobyface was the culprit. Rang true to me because I have that 3rd party app. I uninstalled it from my phone and watch and my battery draining issue went away!!! Hope this helps.

so hope this helps you guys out, so what I did was I myself was on the phone with Apple, which was unsuccessful and irritating so I decided to unpaired my ultra and reset and the reset did the trick for the last two days I’ve left the Watch off the charger and the battery has lasted. There is an update that is coming soon. The battery has lasted so far without any drain. There is an update that is coming soon to help with this but I am on 10.1.

Someone posted that they deleted the Mobyface app from their watch and it fixed the issue. I deleted it and all other non-Apple apps from the watch and it has gone back to working normally.

If you haven't already, it is worth trying and I hope it works for some of you as this is a super irritating issue.

Update! I deleted the MOBYFOX app last night from my iPhone and watch. Left it charging over night. Took it off the charger at 5:55am at 100 percent. It is currently 01:06pm PST time, and my watch is at a charge of 82 percent. Full brightness on, cellular is on and connected, WiFi is one, and always on display is on as well.

So this problem started on my series 7 and then I went to the Apple Store and ended up buying a series 9 since my series 7 had a good trade in value. After reading another discussion post about this issue it seems as though the best thing to do is (if you have it installed) to delete the MobyFace app as it has fixed the problem for me so far. If you like the faces the app provides you can save the photos to your phone and use the photo face for these instead

Update, I unpaired my watch and paired again, removed all the apps in the phone including the MobyFace one and from my watch and seems to have sort it so far and it’s back to normal. I’ll monitor it in the next few days.

I was having the same issue. I called apple support and zero help from a regular representative. Told me to return the watch. I called AT&T and they said since it’s a warranty issue, I had to go through apple. AT&T connected me with a higher apple representative. This person asked me to type moby face into my search on my phone. It brought up an app that I never installed. It was something with photography. He had me delete it off my phone and check it was off my watch. Since doing that, my watch is not draining any more. He said he has had several fixes with doing that. Hope this helps cause I was about done with apple.

Removing the MobyFace app solved it for me too on Ultra2.

I did leave Eufy and Google apps on which did not make a difference, only removed MobyFace

thx to the community and not Apple

If you have MobyFace app delete it. Battery fine since then

Thank you! This worked for me too. I did have the MobyFace app and removed everything 3rd party except my sleep app & audible and my battery function is better both while charging and holding the charge. It has only dropped 2% in 4hrs instead of 90%.

Moby Face isn't the issue. I didn't have Moby Face installed, same issues, 16 hours of headaches this finally worked.

Successful Steps to follow -

Watch won't charge - Probably overheating, stuck at like 40%. Remove from charger, place in cool place (Fridge worked for me). After that put on charger to get it charging again.

On iPhone watch app - remove 3rd party apps that you don't use. This does two things, it forces your watch to communicate with your phone and removes apps that may be an issue. After doing this my diagnostic logs went from 3 pages to 1 single item.

Restart both the Phone and the Watch - may not be necessary but it's always safe to do this step.

Hope that helps.

It’s probably a bunch of apps. Most of us found it to be Mobey but that doesn’t mean there’s not some other apps misbehaving. I’d just remove the apps from the watch and see what happens. If it goes back to normal then one of those apps are bad.

I saw in other comments to delete all third party apps on the watch and it should fix it. My watch was going from 100 % to 0% in approximately two hours and that was with battery saver on at 100 %. I deleted all the third party apps and restarted my watch. It is now dropping about a percent every forty minutes or so, which is what it normally was at before the update. I hope this helps, I was at my wits end trying to fix this issue.

Well…I reset it and set it up as new and it seems ok now….still at 100 percent battery.

Deleting third party watch face apps like MobyFace did the trick for me. Back to normal.