Hello, and welcome to Apple Support Communities BrettC69,
We can see you've been using If your Apple Watch won't charge or it won't turn on, and are finding that your Apple Watch stops charging after a certain amount of time.
This would be the correct article to use for your issue. If you've followed the checklist under the "Get help" section including removing any plastic wrap on your charger, making sure the back of your Apple Watch is clean and then trying a different cable. If it's still not charging as it should, you'd want to reach out to Contact Apple Support. They'd be able to narrow this down with you and find the best solution so you're able to charge your Apple Watch fully without worry.
Kind regards.