WatchOS 10 battery life

My SE gen 1 was more than 50% worse when I updated to watch os10.

when I tried resetting and restoring from a backup there was no improvement.

eventually I restored and set up as new watch and it is acceptable now. I have 65% left at a point in the day where I would normally be close to zero.

Thanks for your help. Same for me after 10 days. Unpairing and repairing with backup did nothing.

So I guess to resolve I need to set as new Watch. Really a pain, but if it's solved afterwards, I'll give it a try.

Gilles wrote:

So I guess to resolve I need to set as new Watch. Really a pain, but if it's solved afterwards, I'll give it a try.

You don't really lose much by erasing and setup-as-new except the time used for the extra pairing. Almost all the essential data is still in your iPhone, it will sync as you bring back any missing apps on the watch. The only thing you might have to rework manually will be a few custom configured watch faces.

My advice is to do a vanilla setup as new watch, then test for a day or two before adding any extra apps on the watch. When you are sure it is working better, go to the bottom of the list in the iPhone's Watch app and you will see the third party apps which you were using - each with their own Install button. Do them one at a time, make sure you have updated the parent app on your iPhone, and test before moving to the next app to reinstall. That way if there is a problem you know which one is guilty for bad battery load.

I have tried all the steps through the overnight off battery drain. Nothing has changed. Overnight drain was nothing. When I turned it on it was still at 100%. 3 hours later, in low power mode, I was at 62%. There are no apps on the watch other than the native included apps. This seems to indicate a problem with Apple's OS since nothing other than their stuff is on my watch.

Not sure to understand how I reply to my own question.

If you mean watch OS 10 is the issue, yes it is.

I'll have another check to your links, but if after having restored my watch, I need to restore my iphone, I'm not a beta tester.

There are dozen of people having the same issue on different forums.

Gilles wrote:

Not sure to understand how I reply to my own question.

If you mean watch OS 10 is the issue, yes it is.

I'll have another check to your links, but if after having restored my watch, I need to restore my iphone, I'm not a beta tester.

There are dozen of people having the same issue on different forums.

No I mean everything you said points to hardware. Oldish watch, same problem on OS9 and 10, tried all the remedies in the user tip, faulty watch, contact Apple support

Ouisee wrote:

My battery health is still at 86%. It was at 86% before the problem started. It's not the watch suddenly going bad. My husband has the same watch/phone as me, and he's not experiencing these issues.

On the same OS and iOS as you?

Yes. iPhone 13 Pro Max and Apple Watch 4. We updated all 4 devices on the same day. Mine didn't start having issues until the last update in OS 9 which I updated to about 2 weeks ago. Most of OS 9 worked perfectly for me. That update caused issues, but it wasn't until I updated to 10 on Friday that I couldn't even get beyond lunch without it dying.

SydSyd wrote:

I hope they come out with a new opertiating system soon

Historically, Apple has released a new version of watchOS once a year, generally in September. watchOS 10 was just released last month.

Same with me. Most days since the update, it’s down to 10% battery life by 7pm. Yesterday, it reached 10% by 10:30 AM. Never had an issue before updating to OS 10. Rarely had to charge my watch during the day before the update.

My series 7 has since downloading the update gone from approx 2.2days between charges to around 24hrs . My watch was at 100% at 11pm last night when I woke up it was on 74% at 8am. It’s now 5.20pm and the watch is showing 19% my faith in Apple is rapidly declining

MarkESXUK wrote:

Had has literally overnight since downloading the update gone from approx 2.2days between charges to around 24hrs . My watch was at 100% at 11pm last night when I woke up it was on 74% at 8am. It’s now 5.20pm and the watch is showing 19%my faith in Apple is rapidly declining

Unless you have an Ultra, that sounds about right. Which model watch do you have? The only version Apple advertises battery life longer than 18 hours is the Ultra. And that's best case scenario. Depending on other factors, it may be somewhat less.

MarkESXUK wrote:

It’s not right 5 days ago it was doing 2days plus between charges, I charged last night and will have to tonight. series 7

It can take a while for the watch to finish up the background tasks after an update. Some people have reported that unpairing and re-pairing the watch has made a difference. But, for better or worse, expecting to get battery life of more than twice what Apple advertises as a best case may doom you to disappointment.

Ok so at 5.20pm today it was at 19%

it’s now 6.07pm and battery has just flashed 10% remaining. so in space of 47 mins it’s dropped 9%

something defiantly wrong

edit: I do wonder about some of the complications…

I had noticed the rain complication randomly shows nothing it just displays two dashes (not updated) then sometimes it shows data , if blank I’ll I tap on it then it updates, I wonder if the watch is constantly trying to update the complication and draining battery?

my watch and phone are always pretty much next to each other so I found it weird data was sometimes not being shown….

So following on from yesterday, it may help others.

I removed the weather app (specifically rainfall) complication from the watch face, my watch has now used 36 % since around 7pm last night…it’s now 3.15pm