BL-5 Battery Chamber Cover for EN-EL18 Battery Grip MB-D12 for D800 D800E
Notice: BL-5 battery chamber cover is only required for when the EN-EL18 is used with the MB-D12 Battery Pack. Compatible Battery Part Number: Nikon: EN-EL18 Battery Fits With Following Models: MB-D12 battery grip for Nikon D800 D800E