Intsun&reg; 2pcs 3.7V 18650 4000mah Rechargeable Li-ion Battery with PCB for LED Flashlight, Headlamps, search light lamp and 1 Universal multi-functional Dual/Double-Channel Charger for 1.2V/AA AAA, 3.7V/18650,18500,17650,16340,14500,10500 Batteries. (4000mAh)