Smart Balance Electric Scooter,Mobility Scooter, Electric Chariot Automatic Balance System Two Wheels ScooterSpecification:1) Motor power: 500Watts (double 250Watts)2) Battery capacity ... with reverse gear9)Max Loading Range: 30-40km10)Charging Time: 4~6 hours11)Max Loading Capacity: <120 kg12)Cross-terrain ramp ... electricity expense of 0.06 ST-002-A,Electric Scooter,Mobility Scooter, Electric Chariot