Lea MB-D12

If you are a professional photographer, you certainly can not do without an additional battery grip. This allows you to do more photos. Surely you not miss any good shot with this backup device. This battery grip is designed exclusively for Nikon D800 and D800E. It can hold one rechargeable battery EN-EL15 or 8 pieces AA batteries. It also features a tripod coil. Other tweaks include a shutter button, autofocus or a multi-selector. 

Specifications:
Dimensions:
155 x 54 x 77 mm
Weight:
282g