Apple Watch battery drain after watchOS 11 Update

After installing watchOS 11 on my Series 8 watch the battery life has been very poor. Hasn't been 12 hours yet since I did it and I can already tell that there's an issue. Overnight the watch will use about 10% of battery. Last night it used over 30% and used another 5% while I was up for about 45 minutes.


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Apple Watch Series 8, watchOS 11

Posted on Sep 17, 2024 4:17 AM

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Posted on Nov 1, 2024 10:24 AM

I think I have a solution for this:

I have a Series 8. Battery health reports 80% capacity (after about 2 years).

Following my upgrade to watchOS 11.01, I was running out of power around 12-13 hours into the day. This was even worse if I had a workout (I sometimes train for 3 hours in a single day.) On any regular day, my battery was down to 50% by lunch.

I did the following this week,

which has improved things a lot:

  1. Update to watchOS 11.1
  2. (And I think this was critical) - I un-paired and re-paired my watch (loading the last backup) with my phone right after the update.

I have done this in the past and it seems to clear up a lot of issues, particularly with power management.

Yesterday, with no workouts, I finished the day with about 25% left (at 14-15 hours). So far today, I am at 50% after 8 hours and one workout. I have another workout for two hours this evening, but I should make it to 16 hours without going to low power mode, if I’m not mistaken.

So - unpair and re-pair, loading from the backup!

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Apple Watch battery drain after watchOS 11 Update

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