FXLION B-Mount Battery - 28.8V / 200Wh

B-Mount is the 24V standard ARRI and Bebob developed to replace the V- and Gold-Mount habit of taping two 14.4V packs together for a hungry fixture. The BM-HV200 is FXLION's 28.8V, 200Wh pack on that mount: data pins let the camera or luminaire read capacity and cycle count off the battery instead of guessing from a fuel gauge, and the release mechanism sits inside the pack, so the plate on the camera can be smaller and a swap is quicker on set.

Draw is up to 10A. The D-Tap output holds a constant DC 16V up to 64W, which is what accessories that dislike a sagging rail want, and USB-C works in both directions: 60W out at 5 to 20V, or 60W in to charge the pack from a laptop supply. It is 154 x 100 x 68.5 mm and 1225 g, so it is the mid-size pack in the B-Mount line rather than the one you rig a whole lighting package around.