Specifications: Model: INR18650-30Q Size: 18650 Style: Button Top Chemistry: INR Nominal Capacity: 3000mAh Continuous Discharge Rating: 15A Pulse Discharge Rating: 25A Nominal Voltage: 3.6V Protected: No Rechargeable: Yes Approximate Dimensions: 18.42mm x 66.64mm Approximate Weight: 48.5g Customers will receive a FREE carrying case with a purchase of batteries! 21-day full refund,if you're not satisfied, you get your money back.