Apple Watch is draining at 10% per hour with NO apps running.

I recently bought a S5 Nike GPS, it's running the latest watchOs 6.0.1, for the first couple of days the battery life was great. I then connected it to macOS Catalina for unlocking my Mac & stuff, that's when the battery life went bad. It's not draining at 10% per hour with NO apps running.

[Re-Titled by Moderator]