The BL-5 Battery Chamber Cover for MB-D12 Battery Pack from Nikon is a battery chamber cover that's used with the MB-D12 Battery Pack and EN-EL18 rechargeable lithium ion battery, when powering the D800, D800E, or D810 DSLR. Battery not included.
For MB-D12 battery pack and D800, D800E, and D810 cameras
In the Box
Nikon BL-5 Battery Chamber Cover for MB-D12 Battery Pack