D-tap (also known as PowerTap) to RED Epic/Scarlet/Dragon allows you to power the camera using any V-Mount or Gold Mount battery with a D-Tap plug.
Cable length: 16 inches (406mm)
Weight: 45.3 g (0.1 lbs)
Dimensions: 25.4 x 50.8 x 152.4 mm (1 x 2 x 6 in)
Custom cable lengths can be arranged. Email firstname.lastname@example.org for details.