Battery Drain Apple Watch Series 9

I charged my series 9 to 100% this morning around 10:00. It’s now 19:30 and it’s at 3%.

This has been a huge problem for me. I've removed apps, done everything I can think to do and my Series 9 watch w 10.4 update STILL drains within hours! I've tried to Power Off (and that wasn't easy!) and still have an issue. PLUS my watch seems to get awfully hot for some reason at times. Does anyone have any idea how this can be resolved or if it's a known issue?

so i figured out what to do. you have to hard reset your watch by holding the power off and crown down simultaneously til it shuts off and then re-pair it with your phone thru the watch app. that fixed mine!

After the most recent update, my Apple Watch (7) battery started to drain rapidly and would t hold a charge through one day. Thinking it was the watch, I bought the 9 series and am experiencing the same thing. My husband has not updated his Watch 9 series and his battery lasts 2-3/charge.

Apple meeds to fix this. It’s unreasonable to spend this much on a watch that cant even last one day. I get home from work and have to charge it before working out so I can use the fitness tracking apps.

Ive been diligent about closing apps throughout the day, but theres been no improvement—- and I didnt close any apps before the update and my battery lasted.

Will Apple accept returns due to this? Im thinking of switching to Garmin so I dont have these issues and get better location accuracy with runs.

Same problem, battery dies in the middle of my lovely early-afternoon Alpine hikes after a full morning charge. And I updated to 10.4 to fix the bug that caused my watch to completely freak out/be possessed. So Apple's batting 1.000 for me at the moment :(

I was having the same issue and I unpaired and then synced it back with my phone. It worked.

mine has been doing the same thing, actually. i plugged it in last night and around 9pm it was fully charged and i put it on before i went to bed. from 100% at 9pm, its at 42% at 4am. literally from the last hour ive been i awake laying here it’s went down to 38%

My son just started using my old watch (after the battery issue forced me to buy a new watch) and he is still experiencing the battery drain.

It has to have something to do with the update. Can we uninstall the update?

It many times is the result of third party apps. During the update process they become unstable and go into a looping pattern that causes the Watches processor to run all the time which can quickly deplete the battery. It can also be caused by memory leaks in 3rd party software too. The fixes, as you discovered, are to force stop the software and which stops the processor and allows functions to return to normal.

One thing I noticed was that the watch was showing a 100% charge much faster that it had before I did the software update. I originally thought that was a good thing, but I wonder if the problem is not that the battery is discharging much faster than before, but that it thinks it is fully charged when it is not. I went ahead and followed the suggestions to unpair the watch and phone and then do a hard reset on both. The watch is now re-paired and, on the charger, and appears to be charging at the old rate. If this doesn't work, the best option might be to unpair again and restore from an older backup.

What is required is a forced restart of your Apple Watch. A forced restart is more than just turning your Watch off and on. Observe the battery usage for the next 24 to 72 hours. If there is no improvement you’ll need to unpair the Watch from your iPhone, force restart the Watch and the iPhone and lastly pair the two devices. Battery usage will return to normal in 24 to 72 hours.

Force restart Apple Watch - Apple Support

Force restart iPhone - Apple Support

Unpair and erase your Apple Watch - Apple Support

Try restarting your Watch.

Either a reset or turn off/on again...

Often this helps after updates.

That said, it often takes 1-2 days for the Watch to settle after an update.

Try powering off, resyncing...seems to have worked for me...been 12 hours and still at 75%, which is a VAST improvement over what had been happening!