I currently have two die hard deep cycle rv/marine batteries each of which is 565 cca (how many amp hours is that?). I have two 270 watt industrial grade solar panels I will eventually mount to the top of the rv. I have a cheap charge controller that says to only hook up one panel to it. I Spent a week in Datil, NM with only one panel pointing south and up. With a 500w inverter I was able to run my omega 8008 juicer, laptop, and a few other low voltage charges on iPads, cameras, etc. and keep a charge on both batteries during the day. At night I ran a small light and watched movies on the laptop.
I was told to not allow the charge in the batteries to fall below 11.9 vdc as it will degrade the life of the batteries.
Everything is hooked in parallel for max efficiency at 12vdc.
Eventually,I want to run everything on dc and be rid of the grid.
One question is will I be able to use the existing a/c wiring to run the dc or do I need to run smaller awg to each location I wish to have dc? Another is about the controller: if I hooked the panels in parallel, would that be to much for the charge controller? It seems to me that if they are Hooked in parallel before the controller it should work.
I do plan on acquiring at least a 3000w inverter eventually as well as better batteries.