My Apple Watch battery is lasting only 10 hours

Battery is only lasting 10 hours



[Re-Titled by Moderator]

Original Title: Apple Watch 10

Apple Watch Series 10, watchOS 11

Posted on Jul 15, 2025 10:31 AM

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2 replies

Jul 15, 2025 2:46 PM in response to GNG_2021

The fastest way to destroy any Li-Ion battery is to constantly run it down to empty.


You should be charging your Apple Watch everyday. While you sleep is a great time.


If you do sleep monitoring, then fast charge the Apple Watch while getting ready for bed, and fast charge it again in the morning while getting ready for your day.


But if you insist on totally draining the Li-Ion battery, then it is going to have a short life span.


If you just upgraded the operating system, then it will take 24-48 hours for the new operating system to finish it house keeping, as well as resync things it wants from the iPhone. Power cycle the Apple Watch and your iPhone (at least once, but maybe once or twice a day until the Apple Watch battery consumption returns to normal. The MacObserver.com How To Fix WatchOS 10.3 Battery Drain Issue on Apple Watch https://www.macobserver.com/tips/how-to/fix-apple-watch-battery-drain-issue-after-watchos-10-3-update/ Also see: https://discussions.apple.com/docs/DOC-250007078 For some steps that are not in the MacObserver article. iPhone -> "Watch" app -> General -> Reset -> Reset Sync Data Again it may take a day or two for the rsync'ing of data to settle down. As a point of reference, my Apple Watch Series 4 with 90% battery health maximum capacity, was back to normal after 24 hours (watchOS 10.5). I did 1 mid-day recharge, and I power cycled my Apple Watch and iPhone twice.

My Apple Watch battery is lasting only 10 hours

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