More power to you.
The G1Xon runs on just 4 AA batteries—either alkaline or rechargeable NiMH. Alternatively, it can be powered from an optional Zoom AD-16 AC adapter or via USB.
When running on batteries, the G1Xon powers up automatically when a jack is inserted into its input connector, and a unique “eco” function can be used to automatically power the unit off if unused for 10 hours.
Battery life (when using alkaline batteries) is more than 20 hours, even during continuous use, and a handy “battery remaining” display shows you how much power is remaining. To extend battery life further still, you can opt to have the backlit LCD display turn off automatically after 15 or 30 seconds after the pedal was last used.