Hi i have a Vanner Model 60-50 Battery Equalizer i picked up thinking about having the ability to add 12v goodies to the duece. I've decided i will probably never do it so if anyone is interested it could be yours. It is a used unit and worked when it was removed. As far as i understand it allows you to run 12v accesories off of a 24v system without putting extra strain on the batteries. Here is the manufacturers website so you can check it out for yourself http://www.vanner.com/client/images/manual_Battery_Equalizer.pdf Looking to get $100 obo. Let me know if anyone is interested by sending me an email at kvfc_241@hotmail.com. Thanks Kirk