Features:

• Charge 2 EN-EL18 or EN-EL18a Batteries for Nikon D4 & D4S

The Nikon MH-26 Dual Battery Charger lets you charge up to two EN-EL18 or EN-EL18a batteries for the D4 and D4S cameras. The batteries can be inserted at the same time, but will charge one after the other in the order they were inserted. .