The SmallRig V Mount Battery Adapter Plate with Crab-Shaped Clamp lets you power your camera and a variety of accessories from a single high-capacity V-mount battery The battery plate provides a V-mount plate for a single V-mount battery and one 14.8V D-Tap output, one 5V/2A USB output, one 8 VDC barrel output, and two 12 VDC barrel outputs around the sides of the plate.