The V-Gear BP-VA1 is an adapter plate that allows V-mount batteries to power cameras with an Anton Bauer Gold battery plate.
The front of BP-VA1 is the V-mount side and the reverse of BP-VA1 is the backside of a gold-mount battery. Firstly, Install the V-mount battery on the front of the BP-VA1. Then, connect the reverse of BP-VA1 to the gold-mount camera mount directly. The V-mount battery will now power the gold-mount camera successfully.