The class A's that I am like have the Cummins engine. I notice that the larger/heavier rigs have more horsepower (300hp vs. 340 to 360hp)with the 6.7 L engine (same torque). How do they get the extra horsepower and is there a mileage penalty for it.
A 13,500 btu A/C will pull over 13 amps at 120 volts.Converting from 120v to 12vs, that is over 130 amps.I doubt Your alternator can maintain that a/c load plus the other loads continuously.Don't rewire, use your generator.
More info: The Fleetwood Excursion 33A has a Cummins ISB 6.7L with 300hp and 660 ft-lbs at 1,600 rpm.The Tippen Allegro RED 33AA has the Commins ISB 6.7L with 340hp at 2600rpm and 660 ft-lbs at 1,600 rpm.Thus the reason for my original question.
My cheap Harbor freight meter only reads 1 decimal on dc voltage which isn't good enough for battery voltage. I use my other meter with 2 decimals to get a better idea of the batteries state of charge.
