If it's 36V, buy a 36V battery. If it's 48V, buy a 48V battery. 36V 20AH 100W-1000W. 48V 20AH 100W-1500W. Rated Capacity: 20Ah. Built-in BMS. 1 x 36V / 48V Lithium ion Battery. Standard connector with #5 connector(T plug).
1 x Lithium Battery. Compatible Bike TypeUniversal, E-Cargo Bike, E-City Bike, E-Cross Bike, E-Folding Bike, E-Mini Bike, E-Mountain Bike. Battery Type: Lithium-ion. Battery Color: Black. Battery TypeLithium Ion (Li-Ion).
1 x Lithium Battery. Compatible Bike TypeUniversal, E-Cargo Bike, E-City Bike, E-Cross Bike, E-Folding Bike, E-Mini Bike, E-Mountain Bike. Battery Type: Lithium-ion. Battery Color: Black. Battery TypeLithium Ion (Li-Ion).