You are on the wrong track here, lacking some basic info. For one thing, the YN560 IV has no port to use a high voltage power supply. Some flashes do, the YN565EX for example. And then 330 V DC is the right ballpark. The flash has regular AA batteries in it, which powers the electronics, and which (for the duration of the recycle) also powers a DC converter that provides around 330V DC to charge the flash capacitor (which discharges through the flash tube to make the light). That's how speedlights work.
Some speedlight flashes also have a special high voltage port to allow for an external high voltage power supply, now a second one, to help charge the capacitor faster, and it adds more batteries too (longer battery life). These external power supplies are normally also powered by a few AA batteries, and they also include their power converter to output the high voltage to the special HV port on the flash body. Except this Tron is different, it runs on AC wall voltage instead of batteries. The flash will still require its own batteries (to power the electronics).
If you wanted to operate the Tron from a car battery, sounds like you need a 120 VAC power converter to feed that one the 120 V AC it expects (I've never seen one, but it says it runs from wall voltage). It will not be portable in a battery operated way then. But the YN560 still has no port to accept it or use it, so you will need to find a different flash model that does.
IF you just want a lot more battery for a YN560, then look at a Al Jacobs Black Box power supply. It plugs into the speedlights AA battery compartment with special cables. Or, carry some spare AA batteries.