Standby (low power) mode only applies when the charge cycle is complete. You can enable standby (low power) mode by clearing the Bluetooth pairing list. This will remove all connected Bluetooth devices from the stored pairing list.
Enabling standby (low power) mode
Applies to:
Press and hold the Bluetooth button for 10 seconds, until you hear “Bluetooth device list cleared”
Within 30 minutes, the unit will enter standby mode
Reactivate Bluetooth by pairing a Bluetooth source