Just to give an update. After a few days of crappy battery life on my series 7, I’m happy to report it has improved massively in the past few days. I’d dare to say it’s actually better than it was on watchOS 10. Disabling live activities and letting it do its thing in background for a few days probably helped. I also accidentally left it go completely flat one day, but not sure if that helped or not.
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Watch OS 11 battery drain
- Thread starter softandy
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I’ve upgraded both my AW6 and AW9 watches to WatchOS 11 and my battery life has been terrible since upgrading. I had similar battery problems on my S9 a couple of months ago and I took it to an Apple Store and they suggested to reset the watch and start it off as new and it fixed the problem at the time. I tried this trick on my AW9 and it seems to have helped.
I do believe it is about the watch indexing and so on after the update. My battery life was appalling for two days and then fine. It was a truly shocking decline --like down 20% an hour -- but then back to normal.
Yeah the battery for my Ultra 1 was two days including an hour run both days when I got it on WatchOS 9 - WatchOS 10 made it effectively an one day watch in terms of battery and think WatchOS 11 is the same.Went running with my Ultra 1 today: 1 hour of running and I lost over 20% (phone was with me, so cellular wasn't even on). I'm running the WatchOS 11 RC since it's out, so background processes should have settled long ago...if this thing lasts you an IRONMAN then you're probably approaching world record paces
Also think the one hour run for me is around 20% at the moment
Today I noticed the excessive battery usage on my Apple Watch S9 (WatchOS 11, iOS 18.0) and decided to investigate further. Upon navigating to Watch > General > Reports, I found a JetsamEvent-2024-09-24-125808.ips file. A closer examination of this lengthy file revealed some concerning details.
High Memory Usage
The largest memory zone, "vm objects", had a size of 7897088 bytes, indicating a significant allocation of memory. Additionally, there were 1725477 compressions and 1509898 decompressions, suggesting frequent memory management activities.
Low Free Memory
Only 2632 free pages were available, which is relatively low compared to the total memory usage. This scarcity of free memory could be a contributing factor to the issues I'm experiencing.
Suspended Processes
Two processes, "NanoHeartRhythm" and "ActivityMonitorApp", were in a suspended state due to "excess-shared-memory". This is a common indicator of memory leaks, which could be causing the excessive battery usage.
Process Details
Both suspended processes had significant CPU times and resident page counts, further suggesting memory-intensive operations.
These findings support the notion that memory leaks or mismanagement issues are present on my Apple Watch.
High Memory Usage
The largest memory zone, "vm objects", had a size of 7897088 bytes, indicating a significant allocation of memory. Additionally, there were 1725477 compressions and 1509898 decompressions, suggesting frequent memory management activities.
Low Free Memory
Only 2632 free pages were available, which is relatively low compared to the total memory usage. This scarcity of free memory could be a contributing factor to the issues I'm experiencing.
Suspended Processes
Two processes, "NanoHeartRhythm" and "ActivityMonitorApp", were in a suspended state due to "excess-shared-memory". This is a common indicator of memory leaks, which could be causing the excessive battery usage.
Process Details
Both suspended processes had significant CPU times and resident page counts, further suggesting memory-intensive operations.
These findings support the notion that memory leaks or mismanagement issues are present on my Apple Watch.
Also check to make sure that it's at 100% when you take it off the charger in the morning. This morning mine had stopped charging at 80% and I had to tap the charge ring to get it to go the rest of the way to 100% (while showering), even though I got up at my usual time.my aw s9 don't last for a whole day anymore, the reason I bought it was because my old watch didn't last a whole day. Rebooted it now, if that doesn't help I hope they come up with a bug fix soon.
I had terrible battery drain on my S10 until I turned off Photo Syncing in the Watch app. I think it would eventually finish syncing, but I dont need photo access on my watch, so I just turned it off. Battery seems fine now.
I did not have it on my Series 7 long enough to tell. But, my Series 10 is not making in a full day.
I put it on this morning around 8:30AM. Around 8:30PM it displayed a Notification that I had 3% battery left. At 8:45PM, it shut off.
I was expecting much better batter than my 7. This may not work out.
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I put it on this morning around 8:30AM. Around 8:30PM it displayed a Notification that I had 3% battery left. At 8:45PM, it shut off.
I was expecting much better batter than my 7. This may not work out.
.
My mom just got a new 42 mm S10 because her old S7 didn't last a full day... Surprise the S10 on WatchOS 11 is almost worse with brand new battery and new chip and everything
Please report to Apple.
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My Ultra 1 used to last until the next morning before needing to be charged. Now with WatchOS 11, I’m down to 30% after a 2.5 hour walk at the end of my work day, when I used to be at 50-60%. I checked and turned live activities off. Hopefully that was the cause of the battery drain.
Ditto here. My Ultra has been awesome for two years, along comes OS11 and sometimes it won’t even last a day of easy use. It’s eating the battery. What a pisser.
check background refresh settings
check there are no apps installed that you do not want
reboot watch