Nikon MB-D10 (MBD10) Battery Grip for D300s, D700, D300

The MB-D10 battery pack runs on rechargeable Li-ion Battery EN-EL4a, EN-EL4 or EN-EL3e or eight R6/AA-size alkaline (LR6), Ni-MH (HR6), lithium (FR6) batteries, or nickel-manganese ZR6 batteries.