Jim Roe it is possible that a recent update is actually causing this. If you check the online forums you will find that this is a common complaint. Samsung's official statement for that is something like this:
"Your Gear provides various options that help you conserve battery power:
When you are not using the Gear, switch to sleep mode by covering the screen with your palm.
Activate power saving mode.
Close unnecessary apps.
Deactivate the Bluetooth feature when not in use.
Deactivate the Wi-Fi feature when not in use.
Decrease the screen brightness.
Deactivate the watch always on feature.
Deactivate the voice wake-up feature in S Voice.
Customize the notification settings in the Samsung Gear app on the connected mobile device.
Again, if those aren't helping you out, I would encourage contacting Samsung directly to set up a repair via phone (1-800-SAMSUNG/1-800-726-7864)."
If nothing else, you can still change the battery by yourself. Use [https://www.youtube.com/watch?v=eQfb52LQpPA|this video] to help you