I gave up trying to purchase Nikon OEM batteries on Amazon. It's easy on B&H, but I cannot (or do not know how to) exclude the hundreds of cheaper knock-off batteries that are inferior in every measure. I also tried to get an OEM battery grip for my Nikon D850 - but again near impossible on Amazon. This grip is $380 from Nikon, and its possible to get a knock-off for $29. Why get the original? It increases the camera's max frame rate for stills. it is also far more durable.