for the majority of large RV.s, the 50amp power is supplied by 240v 50amp double-pole breaker set from the campground. The RV's power panel, though, separates these into two separate and distinct 'sides' of power, meaning that one side will have a breaker for the front a/c unit, while the other...
I would suggest that the two systems do not integrate - the power output of the traction battery is just too high to make that comfortable, although it does help to trickle charge the 12v battery when in use. The 12v battery, though, provides all 12v power, just like on any vehicle. If you...