Kastar ENEL20 Replacement Digital Camera Battery for NIKON 1 J1, Compatible Part Numbers: EN-EL20 Kastar Replacement Battery for Nikon EN-EL20 Battery Battery Type: Lithium-Ion; Battery Voltage: 7.4V Battery Capacity: 1200mAh Package Includes: 1 Battery Compatible: Nikon EN-EL20 EN-EL20A and Nikon Coolpix A, Nikon 1 AW1, Nikon 1 J1, Nikon 1 J2, Nikon 1 J3, Nikon 1 S1, Nikon 1 V3, Nikon DL24-500, Blackmagic Pocket Cinema Camera