Extend your range with a secondary battery. Each battery is built with premium battery cells for a long service life.For use with Strength Battery e-bikesLithium-Ion cellsDoes not come with charger.NON-REFUNDABLE

Extend your range with a secondary battery. Each battery is built with premium battery cells for a long service life.For use with Hummer-Pro e-bikesLithium-Ion cellsDoes not come with charger.NON-REFUNDABLE