Battery Grip Kit for Nikon D300, D300S, D700 Digital SLR Camera Includes Qty 2 Replacement EN-EL3e Batteries + Vertical Battery Grip ENEL3e Li-ion Rechargeable Battery for Nikon D300 D300S D700 Digital SLR Camera Battery Specifications - Energy Storage Capacity: 2200 mAh /Voltage: 7.4 volts, Chemistry: Li-ion 100% Memory Free Super Long Time Recording battery has a one-year warranty Effectively double your shooting time Includes Vertical Battery Grip + Qty 2 ENEL3e Batteries + Micro Fiber Cleaning Cloth