To SoundGuy. THe O/P wants to use a converter.. I don't.
To the O/P.. Now that I recall it. back before I got the wiring and jack installed to make it easier to battery power it off the RV..
I used a JUMP START battery pack. All RVers should have one and keep it charged.. THey are very useful for many things
THe one I have now is operating my main slide out due to a controller failure. Works great.
Heaven forbid I run all the batteries in the RV down again (Did it once) Jump pack has the oomph to fire up ye old ONAN and recharge.
Runs portable battery operated fan
RUns other stuff.
Very nice device.