Second generation lithium-ion battery delivers a heavyweight punch in a featherweight package. By combining the latest in lithium iron phosphate (LiFeP04) cell technology and an onboard cell management system, the BikeMaster® Lithium-Ion 2.0 Batteries provide unprecedented power and safety.Full Function internal BMS (battery management system) provides individual cell voltage protection and cell balancing functionLiFePO4 cells provide power and safety in a non-combustible cellUp to 70% lighter compared to lead-acid batteryQuicker recharge with 10A current and 90% charged within 6 minutesEco friendly design does not contain any acid and heavy metals such as lead, cadmium, hydrargyrum (mercury)