WatchOS 7.5 battery drain

I’ve had the same issue.

After a week trying different routes, I’ve found what has worked and that is turning off the environmental sound measurements functionality in Privacy at least until Apple fixes the bug.

It looks like the functionality is running constantly in the back taking too much power, since the battery drains at a constant pace.

Hope it helps others!

I went to the apple store yesterday and did the diagnostic. The draining issue in my case came from the app Podcast that tried to download podcasts on the watch. It is the default parameter… So I deleted all podcasts from the watch and it came back to normal.

After my Series 4 running 7.5 dropped from 100% battery to 0% in 6 hours, I seem to have finally found a simple workaround to restore all-day battery life. In the Apple Watch app, go to Noise and disable Environmental Sound Measurements. That's it. After turning off that setting, my battery lasts all day again. Nothing else worked for me.

Update. I removed any cards for ApplePay from my watch. Now the battery drain is normal. A review of the diagnostic data on the watch showed ‘passd’ several times.

This appears to be similar to the shared AppleCard issue discussed earlier in the thread.

I will check the wife’s watch after work today. Hers has been draining very quickly as well. Hopefully this fixes the issue.

Resetting my iPhone and repairing my Wach didn't help, but a Hard Reboot of my Watch did wonders (holding the crown and button until the apple logo appeared). The Day after I did that my battery drained even faster, but the second day It was nearly back to normal and now it is even lasting longer (8 hours in today, 1 hour workout, 10 min FaceTiming and still got 74% left, using the infograph watch face with a lot apps on it), I don't know if that helped or it is just a coincidence but my watch is back to normal

Since I posted last week, I completed a hard reset of the watch and then turned it on and off again. Then I fully charged it. Since then the battery issues have subsided. I took it off the charger this morning at 6:30 and battery is currently at 80%!

I don’t know what the problem is- but the reset seems to have worked this time.

Here is an update. I have found that turning Bluetooth off on the watch fixes the battery drain. I have tried everything else including turning off app background refresh, or removing every app possible, or resetting the watch. Nothing works. When the watch is connected to my phone the battery drains twice as fast.

Here is a screen shot from my watch. Can you tell what time I turned Bluetooth back on?

i got the same issue. Did not change anything on my watch. No settings was changed, no new app. Nothing. Only updated to WatchOS 7.5

Some battery cycles will last longer. But then it starts draining.

When I charge the battery to 100 percent and wear it for about 8 hours at night, with sleep mode activated, I wake up in the morning with about 13 percent left.

Always on display is disabled!

I know there must be a process running wild to drain the battery. So I restart the watch and it will work for a day or two.

I got my Series 6 watch 44mm back in October 2020.

So from my perspective it must be a bug in WatchOS 7.5. Come on Apple fix this. Every now and then there are battery draining issues in the updates.

My battery issue has seemed to gotten fixed. Things I did in order

set up watch as new > Hard reset(Press crown and side button till Apple logo appears) > drain the battery till the watch powers down> charge it overnight.

I updated to 7.6 on Wednesday July 21. Prior to this, on 7.5, my battery drain returned to normal after a simple manual power off and on with the side button on June 7. (series 3, 42mm, non-cellular). I was lucky.

However, with 7.6 the drain issue reappeared. The first day was unusual as I charged and updated the OS in the morning after my workout, and had to use it at a 45% charge, and then charged to full in the late afternoon. I usually let it charge fully in the morning.

It seemed to be fine on Thursday morning, BUT, after my workout it was on the charger for 4+ hours, and never reached 100%. My phone didn't alert me to a full charge, though the charge ring graphic was completely closed on the watch. It only reached 99% after 4 hours. The battery health is still at 100% and Optimized Battery Charging is turned on in Battery Health. That has happed a few times before, though only after I took it off the charger after an hour or two, not 4 hours.

I put the watch on, and after 3 minutes it had dropped 9% down to 90, so I immediately did a manual power off and on with the side button. After an hour it had dropped to 83% and then stabilized. It has been functioning normally again for the past 2 days.

You know how sometimes the watch doesn't seat properly on the cradle, and you have to reposition it to start charging? I'm just wondering if somehow the watch(es) are not charging properly, while the charge reading is initially displaying a higher number than is actual, and then when the watch gets used, the number rapidly drops to where the charge actually is? Just spit-balling a possible scenario to observe.

I really don’t think this is a update problem it seems hardware related. I’ve had this issue for 3 years. Whenever I do an update or the watch powers off fully, it enters a weird sync problem with the iPhone where it drains the battery at increased rate. I’ve tried factory reset through the Apple Watch and restored through backup and it still remains. Only way it’s worked is having it on and actually unpairing it from the Apple Watch app on the iPhone and then pairing it and restoring it from a backup. Nothing else works.

I have no idea how to get around it. I try my best to make sure I don't let the battery hit zero and know whenever there is an update I’ll have to unpair and pair with a backup of the latest update.

unpair + pair solved the problem for me.

68% left after 12 hours

iOS 14.7 and WatchOS 7.6 now out and available for download

I did the manual update to 7.6 and the battery issue has resolved itself.