Sam, now that your freezer and fridge are well insulated what do you typically see for thier run time, amp draw? I'm still working to understand my power usage but one thing I do know is that the two of them make up the bulk of my power consumption at a combined draw of apx 5-6 AH. Along with all the other equipment we can use 200+ amp hrs in a day which is a lot of power. So much that if I want to stay out on the hook for more than a couple of days I'll struggle to keep the batteries charged. My plan is to insulate the fridge the best I can then work from there. Let me know how the insualtion is working out for you.
Mike

FWIW things seem to be better which I attribute to a number of things. The main DC feed wire from the house batteries to the DC panel was upgraded to a #2 from a 6 resulting in much less less voltage drop to the compressors. We were seeing as much as a 10% drop on a hot day, something the units didn't care for. I had also swapped the control units between the fridge and freezer compressors. Both run fine now and I suspect that I may have a had a poor connection that was fixed when I reseated the leads to the controller boards. To ensure we have good airflow over the compressor coils I installed 3" stainless vents in the lid aligned above each of the compressors.I also carefully pryed the grills off the front of the cabinet they're housed in. This allows me to clean the dust off the coils which makes a big difference in performance. It's amazing how quickly it builds up, especially if you have a dog like we do. We placed a white plastic coated wire rack in the bottom of the freezer to allow for better airflow thoughout the box. Now we can keep ice cream in it without it going soft. One final addition are sheets of synthetic ice packs. We keep some in the freezer as well as the freezer compartment in the fridge and they do a nice job of keeping temps stable. I still question the thermostats since both units are slow to respond to changes but for now I'll leave them alone. A lot of little things but they all seem to have added up to reasonable performance.

Mike

Sam wondering what brand and type of spray foam insulation you used.