I appreciate the input guys but this ain't my first solar rodeo.
The panel and batteries are left overs from a variety of solar systems I have had.
The panel is not going to be mounted on the trailer but placed in the sun while I am parked in the shade. If I was going to mount panels on the roof they would be 100w flexible panels which I may do when I can afford to buy more panels. But I intend on being parked most of the time so mounting panels on the roof isnt going to be of as much use to me.
The charge controller is Grape Solar GS-MPPT-320W
and is rated for 15v-37v input 12v
output. It will charge a 12v system and handle the higher voltage of their panel.
The univolt doesn't need to be replaced with a newer charger/converter because it won't be in use. Unless it cooks batteries when it's not plugged in. I don't intend on spending money I don't have on something I won't use.
I have already ordered the led lights to replace the incandescents as stated.
Temporary use for testing means the trailer didn't have a battery when I bought it, I currently have 3 35ah batteries laying around and I don't need more battery while my airstream sits in the driveway being worked on. When I get ready to hit the road I will upgrade. Probably 2 or 3 100ah.
As for refrigerators go, I haven't done my research yet. My 2way Ac/propane fridge works but does not get very cold at all. I'm looking for a dc replacement with a very low amp draw. I don't care about ac or propane as I won't use it. Actually the refrigerator is going to be the primary draw on my solar system. I was thinking of going to Grape Solar again as they have a fridge that matches my system but it's a bit more than I can really afford. About $750. Any recommendations? I'm looking for low amp draw but I'm not looking at spending alot.
So back to my original question, is there any reason I can't hook my batteries up directly to the 12v circuit in the closet next to the bathroom?
Thanks for the help.