Kastar 11.10V, 3200mAh, Li-ion, Hi-quality Replacement Digital Camera Battery for Nikon D2H, D2Hs, D2X, D2Xs, D3, D3S, F6, Compatible Part Numbers: EN-EL4, EN-EL4a Voltage: 11.1V; Capacity: 3200mAh Battery Type: Li-ion; Color: Black Dimension: 82.40 x 56.30 x 27.40 mm; Weight: 298.45g Product Type: Lithium-ion Battery Condition: New; 1 year guaranty