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MareLuce

macrumors 65816
Original poster
Sep 26, 2010
1,133
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Since I installed the 8.0.1update, the battery of my Series 6 dies RAPIDLY.

Any idea why?

How to debug what's happening?

~~~

Edit: It is also charging back to 100% massively faster than it ever has before.
Hypothesis:

The battery is not actually discharged. Watch OS just thinks it is. Right?
End result is same.
10:30am - 100% charged
3:30pm - dead


~~~

Could it be JuiceWatch? That app has become flaky. I deleted it off my phone and watch.
Edit: Nope. I deleted and it is still happening.
(But I found that app annoying because it’s always telling me that I force quit it when I did not. So I left it deleted.)
 
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My Series 5 SS watch battery has been losing it's charge as well. It does not even last a day. I don't have the JuiceWatch app though. What could be causing this? I closed out all my open apps (not many) and will see how it does today. It just seems to drain rapidly, does not even last a full day."
It's 2:19 and it only shows 33% now.
 
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Today:
Series 6

10:30 AM 100% charge
3:00 PM 6%

Normally that would be sometime in the evening.


I don’t need this complication in life right now
 
Update:


My Series 6 is also charging back to 100% massively faster than it ever has before.

Conclusion:

The battery is not actually discharged. Watch OS just thinks it is. Right?
End result is same.
Watch turned itself off at 3:30pm, after being 100% at 10:30am.
 
Yes I’m seeing similar, I wear mine overnight and charge each morning. Went to bed with it at 52% in sleep mode and it was fully powered off when I woke up on zero battery!! Going to try and pair/repair and then a full reset if it continues
 
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I had to recharge my series 6 twice yesterday. Off the charger at 06:30 and complete dead by 3pm. I didn't do any workouts or exercise. Charged the watch to 40% and within 2 hours I had the low battery warning. I rebooted the watch and charged overnight so I will see how it is today.
 
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I spent over 2 hours with support between an online chat and a call from a senior support person Yesterday. They think it might be a hardware issue with my watch as they could not get it to connect to diagnose it. I'm going to the Apple store today to see if they can figure it out. I'm hoping it's just a battery replacement. At least I was able to add my AppleCare back in since it had just expired. We shall see what happens today. I have a very out of focus picture of it from 6:15 last night where the battery was at 18% to show what I'm experiencing with it.
 
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Add my S5 to the list. It’s been weird for week, but before the 8.0.1 update already. I’m going through 100% of my battery until probably 3-6 pm, whereas I’d previously I’d end a day at 12 am with 20-40% left.

My suspect is actually the iPhone, or its Bluetooth to be exact. My AirPods have been acting up too, I’m getting dropouts every minute or two which I have never ever had before. If something similar is happening to the watch it may have to re-connect to the phone every few minutes, which could be the cause of the drain.

I turned off Wifi and Bluetooth on the watch (I think there is no other way to disconnect it from the phone?), and suddenly I end the day with 50%. Of course the watch is practically useless without the connection to the phone, but it looks like the watch itself is not the culprit. Unless Wi-Fi and Bluetooth cause a 150% increase in battery usage 🤔
 
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I'm waiting for my iPhone 13 Pro Max. I currently have a 12 Pro Max. The hardware issue is with the watch though not the phone. That was a typo. I just corrected it.
 
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Yikes!
Is there any way to revert back from the 8.0.1 update?

It looked like such a harmless update.
 
so everything checked out as ok on the watch, but since I have AppleCare I can get an express replacement. Hopefully this replacement watch will have a better battery.

I'm going to look into upgrading in the next few months, but in the meantime at least I'll have a better functioning watch. I need to go and look at the new ones.
 
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Seems to be better today. I took my watch off the charger at 08:00. It’s 15:30 now and it’s at 73%.
So just an update. Took it off the charger at 08:00 yesterday morning. It’s now 07:43 of the next day and I just got the low battery warning. I wore it to bed for sleep tracking too. So it’s almost gone 24 hours and that’s what I was basically getting before it went funny after the update.
 
For the future, this is exactly why I think you shouldn’t update to a new watchOS update until at least it’s first .1 update. Apple watch batteries are small and delicate, and any bugs that cause battery drain can be very disruptive and essentially make the watch’s function to act as a watch very limited.

On my S5 here on 7.6.2, battery is as good as it’s always been, with an iPhone 13 Pro on 15.0.2.

This battery drain issue seems to happen every year with every major update, until Apple eventually fixes it.
 
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