watchOS 9 battery drain

I have an apple watch 5. After upgrading to watchOS 9, I am facing a serious battery drain, where a full recharge is not enough for 12h without workout and 1h with a workout? is that a OS issue? or my watchOS battery is not in a good shape? Before the upgrade I was recharging every 24h

Apple Watch Series 5

Posted on Sep 29, 2022 9:58 PM

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Posted on Nov 6, 2022 3:12 AM

Hi here, I have been encountering the exact same problem for 2 weeks but have finally found a way that stops the battery drain for me.

I'm using Apple Watch Ultra but started encountering a serious battery drain issue starting from last week, battery evaporates at a 10% hourly rate on idle state even when my low power mode is on. Some solutions would suggest repairing or factory reset, but none of those actually worked for me. I had to use my AppleCare for an exchange, but the second watch suffers from the same nightmare.


After reading: apple.com/uk/batteries/maximizing-performance/

Disabling Bluetooth on your iPhone increases the battery drain on your Apple Watch. For more power-efficient communication between the devices, keep Bluetooth enabled on iPhone.

I noticed that as long as I keep the bluetooth of my iPhone on, the battery situation will be normal. (now at ~1% per hour instead of 10%)

Personally I feel that there is a problem with WatchOS 9.1 when dealing with the no-bluetooth situation, but I'd suggest to give this a try if you are suffering from the same issue & also have a habit to keep the iPhone bluetooth disabled.

Hope this helps somebody.

134 replies

Dec 27, 2022 11:12 AM in response to rakgupta1

Hi, I have a similar issue with AW5 cellular: since the update to 9.2, my battery is draining quickly and I don't get the full 24h autonomy. But I'm really worried about battery health. Before the update was 92-93%, then a few days ago 88% (12/24/2022), yesterday (12/26/2022) was 87% and today (12/27/2022) is 86% ? In February 2022 , the battery health was still 100%. The AW5 is bought new in May 2020, not covered by warranty anymore and it was running fine before the update.

What is going on with this 9.2 update ? What I should check / fix ?

Thank you!

Dec 28, 2022 2:55 AM in response to Bersercci

Thank you! I did. I left feedback to Apple and I asked for support as well. I've even tried to unpair and pair again the Apple Watch. Now, I'm monitoring it. I don't think it's right to loose 7% of battery health in less than 2 weeks, since the update to Watch OS 9.2. The battery quick draining daily is also an issue, since nothing changed in the daily usage habits.

Dec 28, 2022 5:34 PM in response to ovidiu1977

Yeah, it’s killing my watch battery health. Not sure I want to be in early adopter after this fiasco. Clearly they have an issue with their testing department. This was an obvious one that should not have been missed. I did some troubleshooting for a few days, but now I’m going back to having my watch remain off until an update comes out. This issue has a financial cost to it, unfortunately.

Jan 1, 2023 2:16 PM in response to UltraVP

Agreed. I don't need a mea culpa; just acknowledge that there is a problem that may affect users with [insert common hardware/OS configurations] that they are aware of and working to address, along with a promise to update us in this thread when a fix is released in 9.3.


Since I've stopped charging or wearing my watch until the next OS drops, out of concerns that I'm degrading the battery (or getting frustrated at the 3-4 hours life before charging is required), I'll look to some public messaging like this thread when 9.3 becomes available.

Jan 1, 2023 4:13 PM in response to AScottGoodwin

This is getting ridiculous. Watch charged 100% (for the 2nd time today) at 4:30 PM, 63% by 5:37 PM, 60% by 5:41 PM, 50% by 6:00 PM. Screenshots are attached. I am running ONLY Apple stuff, background updates have been reduced to minimal. The Apple Watch is a Series 8 purchased in November. Is there a "lemon law" for watches? The irony is that I sold my Series 4 because this was happening (after WatchOS 9) because Apple's Repair Center said that there was "nothing wrong with it" and I thought that the watch was the problem.

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watchOS 9 battery drain

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