The Nikon EN-EL18 is a rechargeable lithium-ion battery designed to power select Nikon DSLR cameras, including the D4 series. It offers a high capacity, ensuring extended shooting sessions without frequent battery changes. For optimal performance and compatibility, it's recommended to use the original Nikon EN-EL18 battery. While third-party alternatives are available, they may not offer the same reliability or performance as the original.
