30 minutes on car alternator, charging the batteries was enough time to keep fridge cool for about 6 hours or more. I was using 3 batteries.Had I needed more batteries I had access to about 20 more deep cycle batteries. I plan on investing in quite a few more over the next few months as well as a trickle charge solar power system and a very small generator to trickle charge batteries as well. Within the year I want enough storage capacity to run entire house for several days with just minimal recharge time.
I forgot all my symbols !!@@##!#?????!!!!