Compatible with: Nikon Z9, D4, D4s, D5, D6 In addition to having a higher capacity than the OEM EN-EL18D, the BNI0004 is backwards compatible with the older Nikon MH-26 charger as well as the newer style MH-33 charger. Not even the OEM battery has this capability. Jupio was founded in 2006. We offer an extensive range of power related products. We produce innovative batteries, chargers and accessories for camcorders, digital cameras, drones and more. Manufactured with top quality raw materials and using advanced technology, Jupio products deliver true enhanced performance and tremendous value for money. Our ability to be first to market and our no-nonsense 3-year warranty ensures you will always have the performance and peace of mind that you need.