Rail Dawg
Take a moment and take a dose of MPPT type solar panel technology. Very high voltage feeds a special MPPT controller which acts normal toward 12 volt batteries.
The issue is WIRE SIZE running into your coach and it is possible to double the amount of amps safely using the same size wire. Plus nearly all panels these days are higher voltage.
This deserves it's own new thread using your personal criteria. You need to find out the Gauge of the wire the factory fed down from the roof. Ask the dealer or post a picture with your finger alongside for perspective.
