... anti-overload3.Compose Type : Injection Technology to make battery more stable4.Certifications : CE,UL,FCC, RoHS,ISO90015 ... High energy density2, High working voltage for single battery cells3, Pollution-free, environment friendly4, Long cycle ... Voltage, platform time consistency is good6, Simplifying battery management system (BMS) and battery charger7, With short-circuit production function, safe ...