8.4V4A CE Li-ion battery laptop charger 1.UL/CUL, PSE, GS, BS, CE, CB, FCC 2. ... reliability 3.High effici 8.4V4A CE Li-ion battery laptop charger 1)input voltage: AC 100-240V 50/60HZ2)range voltage ... EMI filter ,minimum wave 8.4V 4A CE Li-ion laptop charger