Review on 🔌 HQRP AC Power Adapter Kit for Nikon D500, D600, D610, D750, D800, D800E, D810 & More + Euro Plug Adapter by Dave Branch

The obvious question is why would you want one like this, ask Nikon, I think it says I won't pay Nikon a significant price for their product. This alternative works as advertised, I use a battery grip and have a spare train which I loaded with a battery adapter for quick converting to an outlet. If you need an outlet as the Nikon D7100 eats batteries, I highly recommend this product.