So I've got the dual batt already wired but only a 65amp batt, I'm running a 50ltr waeco dual zone fridge runs about .87a/h also got light bar and 2 spotties and UHF all on the secondary barely use lights when cars off so my question is what solar panel set up will I need to get the fridge to run for 2-3 days at a time it runs for about a day at the moment and can I permanently have it wired up so when I shut the car off it kicks in when needed?