Apple Watch Battery Drain Issues after Update

Since updating to WatchOS 10.0.1, the watch battery charges only to 80% overnight and the battery drains more quickly than before the update. I also updated my iPhone 14 pro to iOS 17 around the same time. Would this impact the watch battery?


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Posted on Sep 25, 2023 8:16 AM

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Posted on Nov 16, 2023 4:30 AM

As many here I was affected by the constant battery drain of approx. 5% per hour and I think I found what was causing this for me.

When I checked the Watch App on my phone ==> General ==> About it showed that it synced 15 photos even though I have not selected any photos or albums to sync.

Opening the photos app on the watch confirmed that and showed that there are no photos on the watch.

I then selected an album with one picture to sync and the photo count went up to 16. Next I created a photo watch face and set it to dynamic and suddenly the watch showed random pictures that I never selected to sync. I searched for these photos on my iPhone and deleted them from there until the watch only showed 1 picture being synced, which was the one from the album. I then changed the watch face back from dynamic to album and left the face on the watch.

I did this on Tuesday. Yesterday, on Wednesday my watch was at 37% after wearing it without additional charging for almost 17 hours. Usually it would have been dead after 14 hours max. Today I took the watch off the charger at 7:30, at 8:41 it jumped to 99% where it would have been at 94% or even less before and now at 12:30 it is still at 87% which is 2.6%/hour.

I think the constant photo sync would be a good explanation for this issue as the watch would constantly download new pictured from the phone and would index them. In addition to that it would also explain why not everyone is affected by this since this would not apply to people having their photo sync configured to sync specific albums rather than the watch syncing random photos when nothing is selected for the photo sync. And it would also explain why resetting the watch doesn't help to fix this issue since the watch would start randomly syncing photos again after the reset.

Might be worth to check/try for others.

800 replies

Nov 27, 2023 9:39 PM in response to Dchery

In 5 hours from 100% charged overnight with battery saving on, down to 23% already. This is after also fully deleting content and new pairing.


This problem happened to my Apple Watch before but it would stop some time after an update. Now, all we’re told that some third party apps can drain the battery? Nonsense.

Nov 30, 2023 11:46 AM in response to nelsonfromsarasota

I have the series 5 40 mm and it used to last all day and plus some depending on notifications. But I have noticed a DRASTIC change in battery life with updates. This morning I took it off the charger from charging all night and it was at 90% and not 30 minutes later it was 80%. It is not just before 3pm and it is at 40%. I have done nothing on it all day. I have even turned off many background push updates and removed many additional apps. WTF!!!

Dec 4, 2023 3:40 PM in response to nelsonfromsarasota

After I upgraded from iPhone 14 premax to the 15 premax my apple watch very rapidly loses its power. It used to last the whole day. Now I need to recharge 3-4 times a day making almost worthless. I was hoping the 10.1.1 would fix the problem but it didn't. Note unlike some mine will recharge to 100%, but that helps little. Apple needs to fix this pronto.

Dec 15, 2023 3:53 PM in response to nelsonfromsarasota

Apple Watch battery drains 40% faster than prior to update. I Updated my Apple SE watch and I phone 14 Pro Max the same week and only since these updates have I had this battery drain issue. I was able to go two days without charging it and use all the regular apps and now it is dead at 4pm? What the heck! Get it fixed Apple!!! Tech is no good if it doesn’t work when you want it to.

Dec 16, 2023 12:24 PM in response to nelsonfromsarasota

Just updated my Apple Watch 8 and it drained from 100% to 9% before lunchtime. I charged it up again and two hours later it's 74% and it's almost too hot to wear. I've shut it off. For the past 13 months I’ve been able to get two days on a charge with the battery between 60 and 75% after the first day and only at 48% when I’d charge it the second day. Then the update comes along and it's pointless to even put on now.


I use this for medical reasons and I can't depend on it now.

Dec 16, 2023 3:00 PM in response to nelsonfromsarasota

For me, on an Ultra 2 under 10.2, it has become really bad.


I lose 1% of the battery life every 3-6 minutes. This is more than twice the rate of loss than under 10.1.2.


No workouts, no phone calls, no streaming...


Re-paired the watch and no better.


I am now having to recharge the battery while driving to keep the watch running. This is very frustrating.


Help please.

Dec 20, 2023 3:59 PM in response to nelsonfromsarasota

I took my Watch 6 to an Apple Store and told them about the problem. The battery health is at 83% and the Genius rep told me it was normal that 83% health would equate to 5 HOURS OR LESS OF battery time. Like what in the world how is that even possible? How can it go from 12+ hours to just 5 hours of battery time suddenly over a weekend.

Just acknowledge this OS update is draining our batteries and fix it please

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Apple Watch Battery Drain Issues after Update

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