Sony US18650VTC6 3.6V 3120mAh LiNiMnCoO2 battery with Nickel strips and button top. Specs: * Battery Capacity (Mfg Nominal): 3120 mAh. * Battery Chemistry: Li-Ion. * Battery function: Rechargeable. * Battery Form Factor: 18650. * Note: Sony. * Depth: 18.2 mm. * Height: 65 mm. * Width: 18.2 mm. * Max. Continuous discharge 30A. -Do not charge over 4.2V!. -Do not change polarity!. -Do not heat the battery, or store under the influence of high temperatures!. -Do never shortcut!. -Make sure they do not come in contact with water!. - For longer storage periods should be stored below 45 ° C temperature. - After long storage times need the cell probably make a few charge cycles to increase capacity again. -Do not discharge below 3V.