... battery packs/Day for rechargeable flashlight.( 2D-SC-C /3D-SC-C /4D-SC-C,1/2D & 4/5SC & 2/3A) ... pack:Size SC: capacity 1,500 to 2,000mAhSize C: capacity 2,000 to 3000mAhSize D: capacity 4,000 ... capacity 2,400 to 3,200mAhSize C: capacity 3,500 to 4500mAhSize D: capacity 7,000 to 10,000mAhSize AA: ... feel free to contact us.Thanks.STEVEN Rechargeable Led flashlight battery pack(SC,C,D,AA,1/2D,2/3A..)