Running trailer from tow vehicle inverter

Tomt53 wrote:
Is it possible to run the trailer converter by plugging into a tow vehicle inverter?

A LOT more details are needed for a good answer.
BUT.....
You have a battery in one vehicle. You use it to power an inverter to produce 120 Volts AC......which you then use to power a charger/converter for 12 V power in a second vehicle.

Seems like a LOT of unnecessary screwing around.
Why can't you just connect the 12 V systems together ??