... 3. 4.2kg, Max.20A current 4.2 year warranty 5.with Al alloy case, Charger&BMS 36V Li-ion battery pack used for ... friendly Advantages: 1, High energy density2, High working voltage for single battery cells3, Pollution-free, environment friendly4, Long cycle life; It ... lamp8. Small medical equipment and portable equipment 36V Li-ion battery pack used for electric bicycle with Al alloy case, Charger and ...