watchOS 7 Battery Drain

AW5 2 months old, battery condition 100% and AW4 21 months old, battery condition 90%. After the update to WOS7, the battery on both watches quickly discharged.
In my case, it helped turn off the optimized charge on both watches and recharge the watch. At the same time, I turned off hand washing.
The consumption of the watch is similar to the state before the update.

Unpair the watch, pair the watch and restore from backup. This worked for me. Fully charged yesterday at 1000 and 23 hours later only at 50%. I did reduce screen brightness to lowest level. I don’t expect to continue to have this good of battery life, as I am not using the watch completely normal yet. Apple does need to correct this software problem as unpair/pair is a patch, not a fix. IMHO

Seems as this is not only limited to the update of the watch OS 7

I Have the same problem with the old os on a relatives watch, not fully as bad as on my updated watch thou but after 30minutes of outdoor running her watch went from 95% to below 10.. ad her watch does not on run the latest watch os

So it might be a bug introduced earlier and inherited to the new OS where it got even worse.

with the new OS I had 50% battery after 4 hours use without any training or gps use.

As others mentioned, unpair/pair the watch as new device seems to solve the issue. I am still evaluating, but it looks ok after half a day use after re-pairing

Had the same problem on a series 5. Only thing that worked was unpairing and re-pairing as a new watch (not restore from backup - that didn’t work). A little bit of a pain to setup again from scratch, but battery life was more important to me. In fact, it seems that battery life has improved.

I tried unpairing and pairing with a restore from backup. Still had significant battery drain.

I tried unpairing and paring as a new watch. Watch seems back to normal. So far, 7% battery drain in 3 hours.

A quick update. I unpaired and paired the watch yesterday. The good news is that battery life is improved from the original update. The bad news is that it's at 80% of the old version of WatchOS. Apple needs to create software for various models and then test battery life. The new operating system needs to improve performance not hurt it. The new features are not worth the upgrade

Same here with my series 5, after a 30 min morning run the battery is at 60%.. this is crazy my watch before the last update lasted all day now I need to charge it twice a day. I disabled hand-washing and background app updates but it seems this is not helping. Apple please fix this ASAP

So annoying! Here we go AGAIN, Apple releases an update that crushes battery power on another older series product. I had iPhone 6 and have lived through this issue already. You would think Apple would learn their lesson after a successful multi-million dollar class action lawsuit. They had enough time to identify, test and resolve this issue before rolling out the update.

I have series 4 and am I supposed to want to purchase series 6 now? Why should I have to jump through the hoops above to get this thing working correctly if indeed it will work at all on my watch? Do I need to contact the same law firm running the iPhone 6 class action battery debacle? I've spent probably tens of thousands on MacBooks, iMacs, iPhones, iPads, iPods, music, apps, WATCHES and peripherals since the mid 1990's for a family of four. Why?

I have carried out the unpair & pair fix and thus far it seems okay. However, as many other posts have indicated it is a jolly poor show by Apple. I feel as if they are trying to surreptitiously dip their hand into my wallet in an attempt to force an upgrade. Well - there are other alternatives to Apple and I will not hesitate taking my patronage elsewhere.

Same here, since updating my watch (Apple Watch 4) does not make it until the end of the day. Didn’t have any problems before. I could do a half marathon with music on and it would last longer than it does now. Very annoying!

Sorry if this has already been covered. I un paired and re paired my series 4 and the battery performance is still horrible. If I set my watch up as new will I lose my watches cellular number? If so, is their a way to preserve it? I’m super nervous to do a factory reset. Any help would be greatly appreciated because y’all a way more Apple smart than me!

I’ve been having the same issue and have just followed your suggestion. I will feed back if it works for me tomorrow.

like you said it’s a bit of a pain having to repair as a new device but if it solves the issue than it’s a small price to pay

This has been the worst watch update ..My watch is a brick after lunch if I don’t charge it again !! Has to be charged 3 times now .Before the update it lasted all day and night ..I have series 4.Please fix this apple!!!!!!

I was having the same issue with my Series 5. An apple agent (via Twitter) said it is normal for a few days after an update for the battery to drain faster. Its been about 5 days and I THINK my battery is doing better. I've been wearing it for 7 hours and at 68%. fingers crossed!

You couldn’t have explained it better. Exact same thing happened to me except that I have a Series 4 but same thing you did, I did and same thing that you experienced I experienced as well. Nice to know it’s documented as a procedure. Nice job.