Nikon
EN-EL4a Rechargeable Li-ion Battery
For Nikon D2H, D2Hs, D2X, D2Xs, D3, D3s & D3X Digital Cameras
This high-capacity Nikon EN-EL4a Rechargeable Lithium-Ion Battery is designed for use with Nikon D2H, D2Hs, D2X, D2Xs, D3, D3s and D3X digital cameras. It can also be used with the optional BL-3 battery chamber and MB-D10 grip for D300, D300s, and D700 cameras. It features Lithium technology for maximum power and battery life. It also has a No Memory Effect so you can recharge partially drained batteries without reducing performance.