Asking the right question about generator&battery charger

You need to provide:

Battery Bank... 6v or 12v batteries? "group size"? 20hr Capacity in Ah's.

On board converter... make, model, specs (especially bulk and abs voltages, and amps)

Daily usage... including all "leach" loads, like fridge controls, inverter, gas detectors, etc.; and heavy loads like cpap, furnace, a/c, laptop, etc.; and for how many days at a time (i.e; camping habits).

Future plans... more boondocking, longer trips, addition of solar, etc.