... most convenient and economic solution Li-ion Charger/18650 Charger/Li-ion battery Charger Specifications: Input Voltage:100-240VAC 50/ ... 7VxY (Y=1,2,3,4,5,6;Y represents battery's Qty; )Charging Voltage:4.3VxY (Y=1, ... 2,3,4,5,6; Y represents battery's Qty.)Charging Current:3A - 1AEfficiency:80% Output Ripple ... :040Storage Temperature Range:-20+60 Li-ion Charger, 18650 Charger, Li-ion battery Charger