Turn off low power mode?

Try following these steps:

1. Touch and hold the bottom of your Apple Watch screen. Wait for Control Center to show, then swipe up.
2. Tap the battery percentage button.
3. Turn off Low Power Mode.

You can also turn on Low Power Mode in Settings.

1. Open the Settings app on your Apple Watch.
2. Scroll down, then tap Battery.

Low battery also automatically turns off when the charge reaches above 80%.

More information: Use Low Power Mode on your Apple Watch - Apple Support

Thank you! This was driving me nuts!