Interesting thoughts. I wouldn't think it would make a difference to whether or not it was connected at the battery or the 8 gauge block behind the fridge. The only voltage drawn by the fridge would be to run the control board. I never use the dc fridge it is pretty worthless in my opinion. I was thinking of putting a on off switch on the positive line coming from the solar panels. In this case there would be two disconnects when storing but I don't see that as a big problem. Potential heat on the controller from the fridge, I can see where that could be a issue. But all of your suggestions have me rethinking, but that is why I asked. Thanks!
I am going cheapo so as if I screw up it won't be too big of a crisis.:)