bobzane

So I have rigged my xt3 with a dummy battery to connect it to a v-mount battery. The camera powers on just fine and will record HD video no problem. However, when I swap over to 4K, as soon as I hit the shutter the camera powers off. When I put the normal batteries back in it can shoot 4K no problem. I think it may be a power draw issue from the dummy battery or v-mount but I can't find any info on this anywhere.