electric lithium battery folding bike 1, light weught and small size 2,material: magnesium alloy 3,li-battery 36V, 7/8/9/1 ... with tenacity.4,A NEW DESIGN AND PERFECT CRAFTWORK, WHICH BROGHT THE BIKE FASHION APPERANCE.5, LITHIUM BATTERY, 36V 7 -- 10AH.6,BRUSHLESS ... MOTOR.7,FOLDABLE AND PORTABLE, CANE BE PUT INTO TRUNK Solar e-bike