Specifications： 1)Total weight: 18.5kg 2)Net Weight: 16.5kg (including battery weight 5.5kg) 3)Folded Dimension: 820*520*240mm 4)Unfolded Dimension: 1170*700*1140mm 5)Motor Power:12V/120W or 12v/150w 6)Battery: 12v/17ah or 12v/20ah 7)Charge Time: 4-8h 8)Max Speed: 6.5km/h 9)Load Capacity: 50kg 10)Climbing:30 degree 11)It has the function of going forward and backward. 12)Packing Carton Dimension:870*525*370 13)40HQ 400pcs 20FCL 155pcs