pianotuna wrote:
I'd go 12 volt electric.
Next choice new cooling unit from the so called Amish. It can be diy
I am with them musical fish on this
There are some very nice 12 volt or 12/120 volt Compressor units that draw LESS THAN FIFTY WATTS with the door closed (The dang light in the absorption units may well be 20 watts plus don't you know this gives you an idea of the power draw).
I have a small chest freezer that's like that it eats 120 less I find the 12 volt cord... Had a power fail.. used a 12 AH LiFePO4 and a 300 watt MSW inverter and everythign frozen well.
(Used a much larger battery/inverter pack on the Residential Fridge)
I really like those high effiecency units.
MAKE SURE YOU CHECK THE POWER DRAW.
Option 2 is the amish cooling unit.
Some years ago when my Factory cooling unit went powder up (or down actually) I got an Amish.. Impressed I was with the quality.