High Capacity EN-EL15 Li-Ion Rechargeable Battery Pack for Nikon D7000 / D850 / D810 / D800 / D800E / D600 / 1 V1 and More Cameras Chemistry: Lithium-Ion Capacity: 7.0V / 1950mAh 100% Compatible with Nikon Original Manufacturer Equipments Absolutely No Memory Effects Low Impedance Battery Design