I am experiencing slow charging after Watch OS 10 upgrade

Just a reminder...

You can make your watch charge to full before it's scheduled to do so:

1. Make sure that your Apple Watch is connected to its charger.
2. Tap your watch to show the charging screen, then tap the circle with the green or yellow charging icon .
3. Tap Charge to Full Now.

Your Apple Watch takes time to learn your charging patterns before it uses Optimized Battery Charging. If your Apple Watch is new, or if you recently updated to watchOS 7 or later, the charging screen will say Charging to full.

If you want to turn off Optimized Battery Charging:

1. Open the Settings app on your Apple Watch.
2. Scroll down, then tap Battery.
3. Tap Battery Health.
4. Turn off Optimized Battery Charging.

5 . Choose Turn Off Until Tomorrow or Turn Off.

We were having the same charging issue, two hours to charge on one watch. Followed the suggestions, no change. Then I looked at the charging stand (not Apple) and noticed that the charging puck was not in all the way, pushed it back in and all’s well. It’s only a fix if you have a charging stand that uses the Apple OEM charging puck. It was. “Duh” moment.

Are you charging with the original cable or a 3rd party? I've got a 3rd party charger that I've used for a long time (the plug I need to plug into is a stretch for the standard cable). I drop it on there when I get in the shower, and when I get out, I'm up around 80-90% and good for the day. Now if I put it on that charger, I'm lucky to get 5% more charge while I'm getting ready for the day.

On a whim I plugged in the apple charger, which BARELY reaches my night stand. One false move and the watch is gonna hit the floor.... but, it seems to charge like the 3rd party charger used to. I've seen past threads around here where 3rd party charging got messed up with software updates, and wondering if that's whats going on again?

Have you performed a forced restart of the device? It does a lot more than just turning off and on the Watch.

Force restart Apple Watch - Apple Support

Jasegoodman wrote:

Suddenly my Apple Watch Ultra 2 is taking ages to charge. I’ve turned off optimised charging but still taking ages. Yesterday I could plug it in and it would be done in like 30 mins now it’s doing 1% every 5 mins or so…

Try using the advice listed in Restart Apple Watch. I would use both the "Restart," and "Force Restart" in secession.

About Optimized Battery Charging on your Apple Watch explains how "Optimized Battery Charging" works. Be sure to read the entire article for a detailed description.

Are you using the cable that came with the watch and what is the Wattage of the wall charger?

hg257 wrote:

Please fix the problem!!!!!!

Apple does not read this user-to-user technical support forum for feedback. And the volunteers here do not have any way to change things at Apple.

But you can send Apple feedback via:

Feedback - Watch - Apple

You can also contact Apple Support

Apple Watch - Official Apple Support

About Optimized Battery Charging on your Apple Watch explains "How Optimized Battery Charging works."

With Optimized Battery Charging, your Apple Watch learns from your daily charging habits to improve the lifespan of your battery.

Suddenly my Apple Watch Ultra 2 is taking ages to charge. I’ve turned off optimised charging but still taking ages. Yesterday I could plug it in and it would be done in like 30 mins now it’s doing 1% every 5 mins or so…

I’m also experiencing a sudden plummet in charging speed in my Ultra 2. It’s not a subtle difference, it’s huge.

I used to be able to plug my watch in before taking a shower, and by the time I was ready for bed it’d be ether fully charged or almost charged. Now in the same time period I’m lucky if it hits a 40% charge. Even after hours more it won’t even make it to 80%.

Me three

Seems to be the case on watch ultra as well

Prior to OS 10 my watch charged in less than an hour everyday. Now it takes upwards of 2 hours. Nothing changed but the new software update. Apple please fix.