https://alexnld.com/product/dc-12v-np-f-battery-power-supply-system-mount-adapter-for-bmcc-bmpcc-4k-blackmagic-pocket-cinema-camera/?hilite="Coiled Spiral Power Adapter Cable DC 5.5×2.5mm to Weipu FS6 for BMPCC4K Blackmagic Pocket Cinema Camera 4K"