Related Article: Apple Watch Battery and Performance

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Since update to 8.0.1 version to my Apple Watch S6, battery drains twice fast during the day, same happens to my job's iPhone SE 2020 on 15.0.2 update but not to my iPhone Max 12 Pro

Battery drains twice fast after latest update

Posted on Oct 12, 2021 12:50 PM

Reply
Question marked as Apple recommended

If the watch battery drains too fast after an update, see all the replies to:

Battery Drain since watchos 7.4 - Apple Community

WatchOS 7.5 battery drain - Apple Community

FWIW, in some cases, unpairing the watch, completely erasing it, then pairing and restoring the backup will resolve the battery draining issue after an update. (Simply unpairing and pairing again may not work.)

Unpair and erase your Apple Watch - Apple Support

Also, some people have found that simply waiting a few days after an update resolves the battery draining problem.


The same basic steps apply to the iPhone. Try restarting it.

Restart your iPhone - Apple Support

and see the replies to:

Battery life:Why iPhone 12 Pro battery dr… - Apple Community

IOS 15 iPhone 12 pro - battery drain - Apple Community


Posted on Oct 12, 2021 1:25 PM

1 reply
Question marked as Helpful

Oct 15, 2021 8:13 AM in response to javaliga

I have reset my watch completely and paired it with my iPhone 13 Pro Max and I am still having this issue. It started immediately after the 8.0.1 update (model A1978). It's draining so fast it's not lasting a full 12hrs. I even disabled many apps. I've only had the watch on for 5hrs and it's gone from 100% to 49% already and I've just been sitting at my desk working. Prior to the update, my watch would last all day even with a workout or two.

9 replies
Question marked as Apple recommended

Oct 12, 2021 1:25 PM in response to ChuMtz

If the watch battery drains too fast after an update, see all the replies to:

Battery Drain since watchos 7.4 - Apple Community

WatchOS 7.5 battery drain - Apple Community

FWIW, in some cases, unpairing the watch, completely erasing it, then pairing and restoring the backup will resolve the battery draining issue after an update. (Simply unpairing and pairing again may not work.)

Unpair and erase your Apple Watch - Apple Support

Also, some people have found that simply waiting a few days after an update resolves the battery draining problem.


The same basic steps apply to the iPhone. Try restarting it.

Restart your iPhone - Apple Support

and see the replies to:

Battery life:Why iPhone 12 Pro battery dr… - Apple Community

IOS 15 iPhone 12 pro - battery drain - Apple Community


Question marked as Helpful

Oct 15, 2021 8:13 AM in response to javaliga

I have reset my watch completely and paired it with my iPhone 13 Pro Max and I am still having this issue. It started immediately after the 8.0.1 update (model A1978). It's draining so fast it's not lasting a full 12hrs. I even disabled many apps. I've only had the watch on for 5hrs and it's gone from 100% to 49% already and I've just been sitting at my desk working. Prior to the update, my watch would last all day even with a workout or two.

Oct 19, 2021 5:41 PM in response to ToejamNearl

ToeJamNearl- I did my 3rd unpair/pair and about an hour later I actually started to see my calories change on my activity ring...the stand and exercise ring still haven't moved but it's good to know that I am not a slug and not the only one experiencing this issue.

They need to fix this- I have over 800 days of meeting all of my activity goals- if my streak is blown because of a bug......Hey- Apple FIX THIS!

Nov 2, 2021 3:42 PM in response to ChuMtz

For those of you whose watch battery last most of the day, you are lucky! I have been experiencing the same battery issue for about 6 days now (which is since I switched to iPhone 13 pro). Every day since, my batter is dead before I even got home from work. Today I tracked it closely and my battery lasted from 7:30am until 12:30 when it buzzed me it had 10% of juice left. That is FIVE hours!!!! 5!!! Since I was working from home I charged it and now I am hopefully going to get another 4-5 hrs out of it. Something is definitely wrong (whether it’s the update or phone interaction, whatever it may be) and Apple should figure it out, otherwise this will be my last Apple Watch (not like Apple cares but why would I want to waste another 600 bux for a new watch some day if it can only keep up for 5 hrs, and most of it is sitting down so not like there is a lot of movement or tasks happening at the same time).

Nov 2, 2021 8:05 PM in response to sylwia52

When the Apple Watch works it works great. When the battery dies every few hours that doesn’t work for me anymore. Moving on to try out another device. Over priced, under performing Apple products need to be reengineered and this ongoing battery issue is across the board with Apple products. I am slowly starting to shed Apple devices starting with this watch which is now been relegated to a drawer while I move onto the next contestant. It’s unfortunate but quality control does not seem to be a top priority at Apple anymore.

Dec 10, 2021 8:11 AM in response to javaliga

I also experienced similar battery draining issue (~4-5 hour life) with iPhone 13 mini and iWatch series 5.

What worked for me was to reset the iWatch (content and settings) and pair it to my phone as a new watch (I had tried restoring from previous backup and was still experiencing issues). Now my I iWatch battery life is closer to 18 hours.

Since update to 8.0.1 version to my Apple Watch S6, battery drains twice fast during the day, same happens to my job's iPhone SE 2020 on 15.0.2 update but not to my iPhone Max 12 Pro

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple ID.