Yes, I'm aware, but I'm not sure if the output has enough amperage to handle high draw items like the jacks, for instance. They each have a 20A fuse, and while I don't think running all four jacks at once takes 80A, it might take more than the controller can output at one time (so, running the jacks depends on the batteries assisting the controller 12V output.) If it cannot, and the jacks take more than 30A of 12VDC, the portable units won't work without the original batteries present, as I can only find max 30A of 12VDC on the units. I suppose there might be a way to tap into the batteries directly, but I wouldn't assume that would be encouraged or condoned on a turnkey power unit.