dual-slot charger 1.18650 lithium-ion battery 2.With protection board 3 ... toy battery, flashlight batteryThe Shenhuo dual-slot charger is sexually prices charger, the cut-off voltage of 4.2V ... 18650 (with protection board and without protection board) lithium-ion battery, battery adaptation range (18650 to 18730), the ... charge saturation green light. Supfire 18650 lithium-ion battery double-slot charger