Import mini DV footage from sony Handycam DCR-PC7E PAL without power cable
So I finally got my hands on a sony handycam dcr-pc7e pal to import old mini DV footage onto my mac. But there's a final little step that I'm not sure about. I got the camera and all but don't have the power cable and no battery pack. I figured out that I need a firewire 800 cable, an adapter from firewire 800 to thunderbolt 2 and another one from thunderbolt 2 to thunderbolt 3. Does the sony camera get enough power just over the firewire connection or do I need the power cable as well? Thanks :)
MacBook Pro 14″, macOS 12.5