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Apple Watch 5 sudden battery warning and crashes

I’ve had a series 5 watch since it was released. In the last couple of weeks it will suddenly tell me the battery is at 10% (when it’s not) then forces a shutdown. When placed on charger, it’s fully charged again in 10 mins or so.


Rhis started happening mid-workout and was temporarily resolved by the recent big IOS update (Sept 2021) , but did it again whilst I was doing nothing.


its lunchtime and usually battery would be at around 60%. It suddenly says it’s going into low power mode and then shuts down completely.


really annoying. Particularly when it happens during workouts.

Apple Watch

Posted on Sep 28, 2021 6:07 AM

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Question marked as Top-ranking reply

Posted on Sep 28, 2021 10:04 AM

If the battery drains too fast after an update, see all the replies to:

Battery Drain since watchos 7.4 - Apple Community

WatchOS 7.5 battery drain - Apple Community

FWIW, in some cases, unpairing the watch, completely erasing it, then pairing and restoring the backup will resolve the battery draining issue after an update. (Simply unpairing and pairing again may not work.)

Unpair and erase your Apple Watch - Apple Support

Also, some people have found that simply waiting a few days after an update resolves the battery draining problem.


1 reply
Question marked as Top-ranking reply

Sep 28, 2021 10:04 AM in response to redtempest75

If the battery drains too fast after an update, see all the replies to:

Battery Drain since watchos 7.4 - Apple Community

WatchOS 7.5 battery drain - Apple Community

FWIW, in some cases, unpairing the watch, completely erasing it, then pairing and restoring the backup will resolve the battery draining issue after an update. (Simply unpairing and pairing again may not work.)

Unpair and erase your Apple Watch - Apple Support

Also, some people have found that simply waiting a few days after an update resolves the battery draining problem.


Apple Watch 5 sudden battery warning and crashes

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