electric lithium battery folding bike 1, light weught and small size 2 ... lithium battery : 36V, 7Ah/8Ah/9Ah/10AhPOWER 180WMAX SPEED 20km/hPACKAGE SIZE: 740*290*840mm1,A NEW FASHION ... IT UP.3, THE BIKE IS MAINLY USE MAGNESIUM ALLOY, ANTI CORROSION, ANTIQUAKE, with tenacity.4,A NEW DESIGN ... , WHICH BROGHT THE BIKE FASHION APPERANCE.5, LITHIUM BATTERY, 36V 7 -- 10AH.6,BRUSHLESS MOTOR.7,FOLDABLE AND PORTABLE ...