Shoot for longer and improve the ergonomics of your Nikon D850 DSLR with the BG-N19-2 Battery Grip from Vello. This accessory can hold an additional EN-EL15a battery to effectively double your shooting time, and offers a shutter-release button for easy vertical shooting as well as two command dials, AF-ON button, and Function button. The grip can also be used with an EN-EL18b battery when paired with the BL-5 cover (for up to 9 fps), or power the camera directly via AC with an EP-5B power supply connector and EH-5c adapter combination. It can even accept eight AA batteries when deployed with an alternate battery plate; just make sure to select the correct AA battery type in the D850’s setup menu.
Nikon EN-EL14A Rechargeable Li-Ion Battery: The battery is replacement of EN-EL14 rechargeable battery. The Nikon cameras that are using EN-EL14 battery can use the EN-EL14A battery and are completely compatible. Additionally, this battery provides 20% improved battery life. The battery provides 7.2V DC and capable of 1030mAh current. The battery provides more shooting time and compatible with below mentioned models of Nikon.