Hi,

I have a 2011 GU patrol with dual batteries and a redarc SBI12 isolator.
I got a Waeco CF40 as a xmas pressie and want to use it while im away at a music festival in early january. The car will be stationary for about 3 to 4 days tho without starting it. So i believe i will need some solar panels to charge the battery to keep the fridge going.
So my question is, how do i work out what size of solar panel i need to use, and what do i need to connect them up (like do i need some sort of regulator between the panels and the battery to make sure it doesnt overcharge). Also if im just connecting the panels up with aligator clips straight to the battery do i connect it to my aux battery or to the main.

Cheers
Liam