To be on the safe side, I would provide some method of maintaining the batteries. If you have a 3 stage converter/charger and the chassis batteries are also charged by it, I would just plug in the motor home. If the converter/charger is 3 stage, but doesn't charge the chassis batteries, I would add a Trik-L-Charge.
2003 Winnebago Adventurer 38G F53/ V10 605 watts of Solar
1999 Winnebago Brave 35C F53V10 Handicap Equipped
1999 Jeep Cherokee, 1991 Jeep Wrangler Renegade and 2018 Chevrolet Equinox Diesel