Run your B-mount camera and pro video accessories from the B290CINE 14.4/28.8V 294Wh B-Mount Li-ion Battery from Bebob Factory GmbH. Robust and versatile, the B290CINE's B-mount interface enables powering B-mount devices, either 24 or 12V cameras or lights, with the correct voltage, which is determined by the device's B-mount plate.