Worldwide approvals and certifications for safety standards, including UN38.8, UL, CE, etc. Standard SMBus v1.1 interface. Integrated LED state of charge (SOC) indicator. Panasonic cells, highest energy density and stability. JEITA charging optimization rules. Comprehensive safety protection functions, such as overcharge, over-discharge, overcurrent, overtemperature, short circuit, etc. Balance function, effectively improve battery life.