The Nikon MH-22 Battery Charger is used to recharge the EN-EL4a rechargeable Li-Ion battery.

Compatible with the following Nikon D-SLR cameras:
D2H / D2Hs / D2X / D2Xs / D3 / D3s / D3x / D300* / D300s* / D700*

*when using EN-EL4a battery with the required optional MB-D10 battery grip