Nikon MB-D18 Multi Battery Power Pack

The Nikon MB-D18 is the multi battery power pack and vertical grip for the D850 DSLR. It accepts one EN-EL15c battery or eight AA batteries as a backup power source, and adds full portrait-orientation controls including shutter, AF-ON, sub-selector, command dials, and AE-L/AF-L. With the EN-EL15c, the D850 and MB-D18 combination raises the burst rate from 7fps to 9fps — making it relevant for wildlife and sports photographers using the D850.