Emergency fridge...

My wife is diabetic. Insulin needs to be refrigerated for "long term" storage. During hurricane sandy, a lot of friends who live around me lost power for literally weeks. This got me thinkin...

 

If I got one of these 12v DC power car refrigerator, either the ones for keeping milk cool on the ride home or the kind for medical supplies in an ambulance, and parallel wire a few car batteries and wire a few appropriate size solar panels to the batteries, would that work the way I think? I'm nothinking all THAT knowledgeable on electricity, but would anyone know if this would work the way I was thinking?

An easy solution would be to Amazon " solar panel battery box" get a couple and batteries of course. I seen some with cigarette plugs built in. Cycle those boxes around plugged into fridge.

Try not to go below 50% for battery life.