Used Nikon MB-D17 Battery Grip

The MB-D17 is a multi-power battery pack that extends the autonomous operating time of certain Nikon DSLRs. Use of this battery pack also facilitates more comfortable handling when shooting in portrait mode. The pack features alternative shutter-release, multi-selector and AF start buttons for use when holding the camera in the vertical shooting position, as well as secondary main- and sub-command dials. It can be powered by Nikon’s EN-EL15 Li-ion battery or six AA-size standard batteries. ...