Hey folks, interesting forum you have here! I'm a camera operator that is offering some alternative batteries for the broadcast industry. These batteries have a power tap connector build into the battery! I also have the power tap cords in stock, bare ended or with 4 pin xlr. I sell 90, 120, and 150 Watt-Hour batteries and chargers in Anton Bauer Style and Sony V-Mount Style.
I think he meant that the price is the same despite the mount type, not the same as an official AB battery. Prices are probably better than AB, but mount makes no difference in price when put on the same battery.