Ledsniper&reg;2pcs 18650 3.7v Li-ion Rechargeable Flashlight Battery3200mahz(3200mah Guaranteed 12month Warranty) TYPE: 18650 Chemical Composition: Li-ion Rechargeable Times: Up to 500 times. 2 x 18650 3200 mAh 3.7V li-ion lithium battery. 1 x Plastic battery holder included