Ok so I don’t have a question as to “IF” we can operate a camper AC constantly on power inverter, car alternator, and car battery (batteries), but rather how. Call me a dreamer but there has got to be a way to do this. What equipment would it take (even if attached solar to a power inverter/converter would this take? How many batteries in the vehicle and how big of batteries in parallel would it take? Someone come up with a scenario beyond “it can’t be done. Thank you
forget the car stuff, not going to work..
it can be done, I would ask you how big is your wallet and how big is your RV ?
it's going to get expensive and require a lot of real estate for those panels.
as a simple exercise I have calculated the panel wattage for a 1000 Watt high efficiency
a/c running at various duty cycles in the summer time, not the best or worst case but what could
be a typical load.
100% DC = 6600 W of panels and 1100 A/hr at 48V or 52.8 kW/hr
50% DC = 3300 W of panels and 550 A/hr at 48V or 26.4 KW/hr
25% DC = 1650 W of panels and 275 A/hr at 48V or 13.2 kW/hr
the battery capacity will allow for 2 days autonomy.
the question here is: where are you going to store all those batteries ?
and will your RV have the load capacity for them ?
1100 A/hr of FLA will weight in at approx. 2800lbs
1100 A/hr of lithium will be approx. 1300lbs
so now the horror story.. the cost.
approximate market cost:-
6600 W of panels = $5500
1100 A/hr battery = $25000
MPPT Controllers = $2000
inverter = $2000
excluding cabling and installation the total is close to $35,000
get the idea ? LOL
what I would suggest is a 40 foot bus and a towable battery storage trailer, you could load the bus and trailer with that amount of panels and batteries and keep a small portion of the bus cool..
so seriously, 24/7 isn't going to happen, perhaps overnight for comfortable sleeping..
then you might get it down to say 33%, that's now "only" an $11,500 price tag..