This battery grip for the Nikon Z 6 and Z 7 has been designed to Increase the frame-rate and operating time. The dust and drip-resistant grip offers more comfort and a steadier user experience. It will accept two Nikon EN-EL15B meaning you can shoot for longer periods of time without stopping. When used with the Z 6 you'll achieve an expanded 610 shots and 150 minutes of video over the standard 330 shots and 85 mins of video. The Z 7 sees an expanded 570 shots and 155 minutes of video over the standard 310 shots and 85 minutes of video.