If you're using an Android device as a mobile credential, you may see a system notification regarding battery and data usage by the Openpath app. It might say something like "Openpath is using battery" or "Openpath is running in the background." This is normal, and doesn't mean the app is using excessive battery. The app needs to run in the background in order for Wave to Unlock to work. If you'd rather not have the Openpath app running in the background, see How do I disable the Openpath app foreground service on Android?

To disable this notification, swipe right on the notification. Click the gear icon to go to your notification settings.

Scroll down and set Apps consuming battery to Off. 

NOTE: These screenshots were taken using a LG V30 running Android 8.0 - your settings may look slightly different depending on the device and version of Android you're using.