Add a professional high-capacity battery to power your Canon C300 Mark III or C500 Mark II cinema camera with this V-mount Battery Slide from Wooden Camera. The battery slide mounts onto your camera using its captive screws and sits at an angle with a movable hinge to allow you to access the camera's BP-U battery.

The slide mounts a single V-mount battery and powers the camera using a 4-pin XLR cable, which also provides hot-swap capability with the camera's internal battery. There are three D-Tap outputs around the battery plate to power a variety of other accessories.