Package List:1*Single Channel EU/US Charger1*18650 Battery 4200 mahSingle Channel Charger :Charging Battery Type: 18650/16340/14500/26650Input Voltage: AC 100-240V 47-63HZOutput Voltage: DC3.7VOutput Current:500 mAEnd-of Charge Voltage:4.2VNo memory effect， recharge up to 10000 cycles