Why my Apple Watch is not charging 100% ?

Why my Apple Watch is not charging 100% percent

Apple Watch Series 8, watchOS 9

Posted on May 10, 2023 2:56 AM

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Posted on May 10, 2023 2:58 AM

Hi, thanks for reaching out! Try to go to the Settings app on your Apple Watch, then tap Battery > Battery Health. In this area, there should be a feature named 'Optimized Battery Charging'. Disable this feature and see if you are now able to charge your iPhone fully to 100% again. Hope this helps.

71 replies

Jun 20, 2024 5:37 PM in response to Luigi_Gioia

I have turned off the optimisation, restarted watch, turned back on the optimisation, restarted watch and repeated numerous times. When you get off a 12 hour shift the last thing you think of pressing the battery symbol to get watch to charge fully. Then when you finish work and go to the gym you discover the watches died half way through your workout. This is a new watch and was only upgraded because of the 3G being switched off.

Jul 12, 2024 5:14 AM in response to MrsDuhart

Last update changed the charging profile. My battery optimisation is OFF and watch will never charge past 82%. Even when I catch it at 82% and touch the charging circle, it says it will keep charging but never does.


Big problem for me because I often have long workouts that require a full battery to capture the whole thing. Super frustrating.


There must be a background process that is now preventing full charge regardless of user input.

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Why my Apple Watch is not charging 100% ?

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