24/48V Power with Inverter feeding Camper with Shore Cord

[hunter_rv]

Hello,

To begin with, I am not planning on using anything but 12V to the camper components. In fact, what I am trying to accomplish is to add this off grid power outside of the camper.

I want to set up 600 watts (4 panels X 150 watts) of solar on a stand alone mount, set up for 24/48v and store it a 24/48V voltage battery bank (4 or 8 6V batteries) and feed it through an 24/48V inverter into the shore cord.

I have never done solar, but this forum and google has warned of the inefficiencies of charging my coach batteries from the inverter power. I plan to address this by using a different stand-alone 12V solar panel that feeds my Montana 10amp Furrion Solar Plug in and that should keep that charged up.

So, I am thinking 1 12V Solar Panel, to keep the 12V coach batteries charged up, then use the larger solar 600w array to charge a large battery bank wired to an inverter and plugged into the shore power cord to supply the 120V

Why? This is a private land and the camper is used as a cabin and in the future, this power system may feed a small cabin or a different camper. This is mostly a weekend get-away but there once or twice a year, it may see a week of continuous use.

So, I know this is unique set up, but you guys are most likely some of the most experienced group of folks for small solar setups and using them in RVs. Would like to get your thoughts and concerns that I need to overcome.

...editing post to add more info. As far as running AC unit goes, I most definitely will run a generator (Honda eu7000i). I have a electrician who will wire me up a pedestal for this inverter/charger to be wired to. It is my thoughts to plug the shore power cord to either this pedestal (battery power) or the generator unit.

Last year, the generator's meter recording my usage for what I would consider normal 120V use, TVs/DVRs/charging gadgets, running a fan, parasitic draws and it was at about 400 watts.


Thanks

[time2roll]

Do you expect to run the air conditioner around the clock?
Is this full time living? or just when you are there?
600 to 900 watts might be twice what you need or less than half.


The 12v panel is just a nuisance at this scale.

[pianotuna]

Hi Hunter_rv,

There are DC to DC converters that are efficient.

For the starter battery maintenance, look at a Trik-L-Start

I'd go for a 48 volt battery bank.

For my detailed thoughts on solar, surf here:

https://freecampsites.net/adding-solar/