Hey everyone.
I was out of town for the weekend and when I got back home, I found this on my doorstep.
Its a 15 amp, 72V charger DESIGNED for use with true gel-cell batteries (14.1V max.) which I bought used from an EVer in Florida.
Looks like it should be pretty easy to hook up. The only odd thing is that spare little black and white wire. Supposedly, it is designed to run to a relay so that you can't drive off in your car while charging. I will have to hook it up and check it with a multimeter to see if it is designed for 12Vdc, 120AC, and if it is normally open or closed.
EDIT: I know there is no sense of scale in these photos. The charger is pretty big! It's about a foot long and weighs 13 lbs.