12ah 48v Li-ion Battery For Bionx 4000-a12081020 / Sl 250 Ht Xl Electric Bike E-bike | Fruugo US
48V 9Ah for BionX 3582 C11297435 3582 M11300027 Wisper Battery pack Li Ion E Bike electric bicycle for self installation|Replacement Batteries| - AliExpress