ON THE WAY&reg;16340 3.7V 2x2000mAh Protected CR123A Rechargeable LED torch light lithium Battery with Smart Dual 16340Battery Chager for laser pointer/flashlight/Photo Camera 3.7V 2000 mAh high capacity-Higher energy density and lower weight than other types rechargeable batteries Internal PCB protects against under and over charging "Can replace for CR123, CR17345, K123A, VL123A, DL123A, 5018LC, SF123A and EL123AP) " Application for Li-ion rechargeable batteries (16340, CR123A) The charger can be 1-2 section CR123A of the Li-ion battery.