Originally Posted by Herk7769
I am not so sure about this. No transport driver would risk his CDL over a 12 volt battery. Most likely they have one in they use during delivery to the dealership. Then the expensive house battery is installed.
Not to hijack this thread, but this is pertinent to the OP's question about towing a trailer sans the battery.
Lou is absolutely correct that the transporters do indeed provide the battery to the RV while towing, if needed.
Here is a link (with all the requirements) and an excerpt from a RV transport company on the electric requirements (in case anyone may be interested in doing it themselves):
RvTransport.com¬*-¬* Transport Info
"You need an electric brake controller suitable for towing a trailer with six brakes. You need a seven wire "Bargeman" (female side) RV style electrical connector in the truck bed for the fifth wheel units, and a connector near the ball mount for travel trailers. You must have 102" wide towing mirrors, and big sturdy mud flaps mounted to hang about four inches above the ground. An extra large fuel tank is good to have (maximum of 110 gallon, and must have six way electric valve) and a toolbox for your jack and other emergency items, like wheel changing tools. You will need a Standard Group 24 RV battery for the hydraulic jacks on some units and for the trailer break away switch.."
EDIT: another link from Camping Worlds transporters that basically states the same:
" breakaway battery: DOT regulations require the battery to be a “wet” cell battery-not dry cell. It can be purchased in Elkhart at orientation."