... battery charger 8.4V5A for 4 cell Li-ion battery pack 4 cell Li-ion battery chargerReverse polarity protection Sensing and following the battery voltage Constant output current to protect both battery pack ... indicator Comply with ENERGY STAR requirements Safety standard approvals: UL, CUL, GS, CE, BS, SAA, EK, PSE, CB, FCC, EMC, C-tickInput ...