Nikon EN-EL9a Rechargeable Lithium-Ion Battery for Nikon D40, D40x, D60, D3000 & D5000

Rechargeable Lithium Ion battery for the Nikon D40, D40x, D60, D3000 & D5000 Digital SLR camera. 

7.2 volt 1080 mAh 7.8 Wh