new to us 2006 Starcraft 2406, just brought home yesterday. Previous owner said converter was out (Elixer ELX -25) and there is no battery. ELX-25 appears to have 2 breakers and 4 dc circuits. onboard equip: Water pump (DC) AC Refrigerator (i believe 3 way) Water Heater (propane) Furnace (i assume propane/DC) what I think is maybe a CO detector no trailer brakes but likely to add at a later date The AC power cord is terminated with a 3 prong plug in which one plug is Hor. this is not plugged in to any thing. I need to have a 110 outlet for C-pap or inverter if on battery power Most (70%) of our camping will be in CG with hook ups but we do like to beach camp/surf fish (so 30% boondocking with generator) some winter camping also so furnace will be used. what converter to upgrade too? what size and type of battery? Where does the ac plug in to? If it is designed to plug into shore power only then I would want to wire into internal wiring so that the only have to connect the 30 amp cord to shore power/ generator in order to power all and charge onboard battery. I also assume that any inverter needed to run c-pap while on battery power would need to be wired directly to the battery with heavy gauge wiring.