Battery drain with watches 9.2

my apple ultra watch since last night update drains the battery very fast

Apple Watch Ultra

Posted on Dec 14, 2022 3:24 AM

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Posted on Feb 23, 2023 12:45 PM

I've faced the battery drain for several weeks and hit on a solution that may help others (thanks also to Apple support for helping find this solution).


When the Watch OS updated to 9.3.1, my phone was on 9.1.1 and for some reason the phone OS update got downloaded but did not get installed. I realize now that the battery draining manifested just around that time.


After resetting the watch one thousand times and doing everything else suggested on this forum ... including removing all apps, disabling all active listenening/monitoring features and swiching off ALL notifications, I still had a dead watch within 3 hours of a full charge.


Updating the phone OS to 9.3.1 to be in sync with the watch fixed the battery drain automagically for me. I did unpair and pair it agin just to play safe. And now 7 hours after a full charge my watch battery is at 48% so I'm a very happy and contented person at this moment.


I've also recommended to Apple support to make the updates intelligent such that the watch OS is never ahead of the phone OS unless its absolutely essential - in case that helps prevent such glitches in the future. Or else to make sure these differences don't cause such unexpected outcomes.


25 replies

Dec 14, 2022 7:39 AM in response to chemapu

Same for series 7

i did the update early in the morning before I start my day. It is drained down to 30% with normal use that would have it to 75%+ before the update every other per day. Same workouts, walking etc

initialy I thought to give it another day before posting but it became so bad I came here to see if anyone else is experiencing this and saw your thread.

Jan 12, 2023 9:39 AM in response to Willarnold

I upgraded to watch os 9.2. My watch immediately started draining in minutes. It used to last all day. I have wiped the watch and re-paired. I have reset phone and watch. I have turned off background app refresh, walkie talkie and everything else possible. Nothing is working. It still drains quick. In addition, contacts is 8 gb on watch -- what the heck is going on. I don't have that many contacts!


Definitely a bug in 9.2. Is anyone from Apple monitoring this forum? It seems to be a widespread problem.


Help appreciated. Ideally a patch. Thanks

Jan 12, 2023 9:54 AM in response to Willarnold

Thanks Will


I did try setting up as new watch and it still has gone back to draining. However, I will try again and see if I can get this to work...


Apple has always been pretty ruthless about not properly supporting older products but I think the Apple Watch 4 is fairly recent and might even still be sold... Anyway, a new watch might be the only solution :-(


Jan 30, 2023 4:41 PM in response to MAURICE M ROSENBAUM

I have a Series 7 and experienced same issues since 9.2 came out. I unpaired and re-paired 4 times (NOT from backup) and finally gave up w/ the expectation that 9.3 would hopefully fix the issue. 9.3 has come out, I've updated, restarted, reset and finally unpaired, re-paired another 2 times since and still no slowing down this battery drain. I just spoke w/ Genius Bar who ran diagnostics and said they can't see anything wrong w/ the watch but to do further software-based tests it will cost $430. Does anyone have a cheaper solution? I've tried everything I know + have learned from this board. If I'm going to spend $430 JUST for diagnostics on a Series 7 I might as well get a new watch. Is the Series 8 experiencing similar issues?

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Battery drain with watches 9.2

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