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Restarted my watch today and then brought my charger in the car so I could watch it charging on a longer drive today and it did charge to 100 percent. Interested to see what happens in the next few days.
 
Throw me in as another person having this charging issue. Been having this issue for a few weeks at this point. Just completed a unpair/restart/restore. Hoping that allows my AW to charge to 100% (or at least list its charge state as 100%) for the time being.

Not planning on reaching out to Apple Support for the time being based as responses to this thread. Not going to waste my time getting a runaround if there no acknowledgment of an issue in the first place.

Hopefully Apple acknowledges and addresses this situation soon.

EDIT: I have an 42mm S3 Non-LTE Space Gray Aluminum. Not sure if this issue is model specific (other than the fact that some S3 models seem to be affected), but figured it wouldn’t hurt to share that info.
 
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There are days my watch is at like 90% after an hour use and other times it is still at 100% after a couple of hours. I am thinking that some days mine is not charging to 100%. Will start checking when I remove from the charger and see.
 
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Throw me in as another person having this charging issue. Been having this issue for a few weeks at this point. Just completed a unpair/restart/restore. Hoping that allows my AW to charge to 100% (or at least list its charge state as 100%) for the time being.

Not planning on reaching out to Apple Support for the time being based as responses to this thread. Not going to waste my time getting a runaround if there no acknowledgment of an issue in the first place.

Hopefully Apple acknowledges and addresses this situation soon.

EDIT: I have an 42mm S3 Non-LTE Space Gray Aluminum. Not sure if this issue is model specific (other than the fact that some S3 models seem to be affected), but figured it wouldn’t hurt to share that info.
Not sure I understand your thinking in that you don't want to "waste your time" reporting the issue, but hope that Apple will acknowledge the issue. How is Apple going to acknowledge the issue if not enough people report it?!?!
 
This happened to me a few times with the most recent time this morning. I put my watch on the charger last night at around 10pm. This morning around 8am it is at 93%. This is not the first time it has happened but it all seems to be happening since the newest update. I have an Apple Watch 3 42mm stainless.
 
Not sure I understand your thinking in that you don't want to "waste your time" reporting the issue, but hope that Apple will acknowledge the issue. How is Apple going to acknowledge the issue if not enough people report it?!?!
Based on this thread it looks like no one (including Apple) have a definitive/unified solution to this issue at this point. Apple literally hasn't even acknowledged something is going on. It appears if I was to reach out to Apple to try to get this problem fixed I would eventually be told that they cannot detect an issue with my watch (either immediately or after sending it to a repair center). If I was persistent and tried to get a warranty replacement there doesn't seem to be any guarantee that a new watch wouldn't have the same issue.

I would feel greater urgency to get this issue addressed if the functionality of my watch was significantly affected, but this isn't the case here.

If there was a form somewhere online were I could report this issue to Apple I'd try that (if there is please feel free to post the url as a reply), BUT it doesn't seem worth it to go to an Apple Store in person or call up Apple Support if it isn't going to accomplish anything.
 
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Well this is interesting. My wife's 38mm SS LTE Watch Series 3 had the 93% issue, and she never rebooted it, and several days later it's charging to 100%, so I tested the theory on my 42mm SS LTE Watch Series 3: On Wednesday morning I noticed it was at 93%, and then also on Thursday morning. But today, it's back to 100%.

So this issue is frustratingly intermittent, and not easy to reproduce.
 
I have a series 3 Ceramic has exactly the same issues. Mine gets to 94%. I tried a reset the other day and I think that fixed it for a day or so...now I’m back where I was. Very frustrating...might try to set up as new and see how it goes
 
I wonder if its an over heating issue cause mine is warm too

I have a sneaking feeling it's a runaway app and/or a bad configuration. That jigsaw piece would fit in to the following scenarios:

1) 'Fixed' after a reboot (app is killed)
2) 'Fixed' after a day or so (app eventually commits suicide)
3) Watch warm to the touch during charging (watch running at high CPU)
4) 'Stops' charging at around 93% (I believe that's where the watch goes into trickle-charge mode)
5) Apple fail to see any issue on returned watches (all apps uninstalled)
6) Problem returns quickly after a repair/restore (bad app/configuration is restored)
7) Problem seems to go away after a repair/no restore (app and/or configuration is not restored)
8) Doesn't happen to everyone (app popular enough for many, not global though)
 
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Mine has been fine for 5 straight days. This morning I used the Apple workout app. Wonder if that’s the problem. Will see tomorrow morning after tonight’s charge.

I don’t find any watch app any good so I’ve only got about 2 installed.
 
Well I think TiggrToo May be right.

As I stated above my watch had charged perfectly for 5 days. Then I used the workout app yesterday for the first time in 5 days and this morning my watch stopped charging at about 93%

I’ve forced closed the workout app and won’t use it today and I’ll see if it charges fully tonight.
 
I've never used the workout app myself. I'd put money on this being a core Apple app that's at fault TBH if indeed that is the issue.
 
My SS 38mm series 3 has been on the charger since late Sunday night. I have checked the battery level (from my iPhone) from time to time to see where it's at. 100% the whole time until this morning when I checked and it's at 96% and stuck there. Picked it up off the charger to restart and it's rather warm. Still a mystery.
 
A couple of observations I've noticed while looking into the issue.

1. The charger will consumes .1 watt without the Apple Watch on it.

2. The Apple Watch charges at 1.7 watt. The watch will be warm.

3. The 1.7 watt charge ONLY occurs while the screen is off. Tapping the counter to turn on the screen (nightstand mode) drops this power to .6 watt and wont go back to 1.7 watt until the screen falls asleep again.

4. At ~95% charge state the power drops to .6 watt regardless of screen on or off. At that point charging dramatically slows.

5. .6 watt remains even hours (2+) after the watch has reached 100%. The watch will remain warm.

6. After observation 5 the charger finally drops to .1 watt, percentage will be at 100% and the watch will cool off (colder than skin temp). Remember this .1 watt is what the charger uses so at this point the watch is not charging at all. However the battery widget in iOS does still show the watch charging so it knows it’s on the charger.

The above was observed over a couple nights of it charging properly to 100%. I’ll need it to only charge to 95% again to see what is changing.

If I were to guess I wouldn’t be surprised if it got to 100%, stopped charging and didn’t start again until 95%. At that point it would charge at .6 watt (slowly) and get warm. I could be wrong but in recent memory I feel I notice this more often after the watch has been on charge longer than normal like if I take it off at 6pm the night before.

Without a way to log charging this will tough to know exactly though.

So a quick update on my previous post.

Finally the watch started not charging all the way up again.

What I found is it state pulling .6 watts from the charger. AND it was using it, left it on the charger for a day and it used 1500 mAh of power from 70% charge. This would indicate that getting to the .6 watt charge mode but something is causing it to use equal to or greater than .6 watts.

Resetting the watch fixed it, although I'm sure its temporary.

From 70% charge left on overnight to 100% was barely 200mAh.

I feel there is something running that shouldn't be. Next time it happens I'm going to try to put it in airplane mode to see what happens.
 
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