True, that is easier but not much of an apples to apples comparison. I was trying to demonstrate that you could get the same functionality in a diy.
Well I'm taking your advice. I have the room and I found a group 31 AGM at Sam's for a reasonable price. Really simple to start. An isolator and a plug for the fridge in a el cheapo plastic battery box. Its in my trailer and wired to the alternator in my tow vehicle. Its gets me going with a small investment. I did find a not so expensive battery monitor also so I can keep up with the battery's state of charge. I will use that for awhile and expand to needs. I'm excited about finally having a fridge. http://www.dometic.com/USA/MS-7207-Recreational-Vehicles/PG-7232-Refrigeration/PG-9749-Portable-Coolers-Freezers/MD-117719-CFX-Portable-Coolers/SK-118189-CFX-65-Portable-Cooler Found one of these "used" on Amazon. When I got it it was actually new with some damaged packaging.
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