The Levy and Levy Plus uses a 42 Volt, 2 Amp charger, compatible with an input of 100V - 240V (50/60Hz), and max amperage of 2.5A. These are to be used with a standard US / Canadian wall outlet. They can also be used with other international charge adapters (not currently sold by Levy).
The charging port uses a one pin connector with outside diameter of 5.5 mm; inner diameter of 2.1 mm.
Additional chargers can be purchased here.