Nikon EN-EL4a Rechargeable Li-Ion Battery for MB-D10 Battery Pack and Nikon D2 and D3 Digital SLR Cameras
Power your Nikon D2H, D2Hs, D2Xs, and D3 digital cameras without relying on disposable batteries with the high-capacity Nikon EN-EL4a rechargeable lithium-ion battery. Also compatible with the optional BL-3 battery chamber–which supports the MD-D10 grip for the D300 and D700 cameras–the battery employs lithium technology to ensure a maximum battery life and maximum power. Plus, the battery doesn’t suffer from a memory effect, so you can recharge partially drained batteries without reducing performance. Specifications include an output voltage of 11.1 volts, a capacity of 2,500 mAh, and dimensions of 3.2 by 1 by 2.2 inches (W x H x D).