Apple Watch sudden battery drain?

Is there something strange happening with WatchOS today? I have a Series 2 Nike Edition running 5.3.2 and a Series 5 Nike Edition running 6.0.1. Both has normal "all day battery" life prior to today. However, today both have drained battery much quicker (the Series 2 drained almost completely in half a day, the Series 5 now down to 7% after 10 hours). What would cause this sudden battery drain? No change in usage.

Apple Watch

Posted on Oct 14, 2019 1:29 AM

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Posted on Feb 23, 2020 9:54 AM

This is a follow up to my previous posts. I found that my iPhone and Apple Watch were still draining faster than they should.


Reviewing the diagnostic logs from my iPhone and watch, I found TrustedPeersHelper still taking a lot of CPU on both devices. My mac has been fine, but something still wasn't right with my other devices.


So, this time I ran this terminal command from my mac: tpctl reset


I was then forced to login to iCloud on my mac and iPhone, but ever since my watch and iPhone are not running hot. Yesterday, I wore my watch from 7 am to midnight, and I still had 60% remaining on my watch, and 70% on my iPhone.


The "tpctl reset" resolved all of my battery issues!


If you don't have a mac, I'd recommend calling Apple or going to an Apple store. They must have a way to do the equivalent of "tpctl reset" on your behalf from their side. I hope this helps everyone.

206 replies

Oct 20, 2019 2:56 PM in response to demuire

I have a series 4 watch that was working great. Bought the new iPhone 11 and paired with the new phone. Now the battery drains on the watch by 5:00 pm each day. I’ve unpaired/repaired, restarted, updated software, removed all watch apps and turned off all options that may use power and it still runs drops about 10% per hour.


I took it into the Apple genius folks. They ran a diagnostic on the battery and said it was good. So sounds like it is a software issue.

open to suggestions...?

Nov 13, 2019 10:07 AM in response to Bluecy_

Disabling Siri did nothing. Re-paired watch as New and nothing has changed. Hard reset and everything else that I’ve tried has done nothing.

All I know is that since updating watch to os 6.**, battery has been horrible. On top of all that, updating my iPhone XS to iOS 13.**, battery on my phone is equally as bad!

So, in 7 hours of “light use” today, my phone is down to 59% and watch is at 54%!!!!

How about it Apple?

Nov 19, 2019 3:14 AM in response to demuire

I've a suspicion the problem is somehow links to a synchronisation issue somewhere. Randomly, and I'm wondering if this is linked, when I click settings on the watch, at the very top my name is displayed but to the left rather than my photo being displayed it just has my initials in a gray circle. I swear it used to have my photo (the same photo I click into setting on my iPhone that I've associated with my Apple ID). For whatever reason it doesn't anymore.


It's a long shot, but anyone else who has suddenly experienced their battery life becoming significantly worse, are their Apple ID photos showing on their watches in settings?

Nov 19, 2019 7:36 AM in response to demuire

Appreciate the Responses; And ...


As much as I am a fan of Apple products, and appreciate the various anecdotal information; the fact is that, all of a sudden, “we” are having to modify what has worked on our various watches for months (or in my case even years), so address a problem of unknown origin, and a problem that Apple should recognize, admit and tell us they are fixing.


It should not be necessary to do any of the things mentioned, because, without doing those things, the watches were performing just fine until two or three days ago.


My v4 watch, has now used 14% of its battery in the first 2 1/2 hours since I put it on this morning, and 30 minutes of that I didn’t even have it on while I was showering. I haven’t played any music, and I turned off some of the things that had been running for MONTHS without this effect.


Normally, I use about 35-45%, a day (14-15 hours), which works out to a high usage of 3% per hour. Now, I’m using 6% per hour, and that is without music, and with my phone within 10 feet at all times.


I use my iPhone and my Apple Watch in my business, and don’t have time to be resetting everything, wiping out all the apps, starting all over, putting in all of my passwords and reconfiguring the entire system anew — which would, moreover, affect how my iMac and my MacBook Pro work.


This is Apple’s problem to fix.

Nov 19, 2019 9:00 AM in response to MagicMouseOK

I agree with this assessment. It IS Apple's problem to fix. They should not be expecting the average users to put up with substandard performance out of the box, or waiting X number of days for it to get better. The S5 was terrible on day one, 10hrs at best. The average user should not have to get their new product and then go about turning all of the useful functions off, especially when those functions are exactly why they bought the watch. It's not a good user experience and should never have gone out the door like that.


My watch reset was yet another software issue. I had turned my phone off to replace the screen protector and when the watch reconnected to my phone it was forced into a wipe situation. One minute it had the time, the next the Apple Logo and the progress meter. And having to reactivate the eSIM on it was a bonus kick. Needless to say, I'm very weary of restarting my phone now.


I to use my phone and watch in my business, and I totally agree. I don't have time to wipe and reload constantly. It's ludicrous of Apple to think people are OK with that.


Nov 20, 2019 3:07 PM in response to DaveH

Had same problem, series 2 watch iPhone 7. Jury still out on whether this recommended fix works. But, I know what would work - because I have same problems with iOS 13 on the IPhone - let us revert to iOS 12 and the prior version of the watch os, and don’t rerelease buggy operating systems. I love Apple products, but there is no way in **** i’m going to replace either of these with Apple products if this problem continues - even if they were steeply discounted. Apple needs to admit it messed up, offer an across the board revert w/o nuking the device, and then fix the OS.

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Apple Watch sudden battery drain?

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