So I went out to some various stores and picked up the parts to make a small "sandbox" HHO set up so I can play with it, learn more and maybe eventually put one in to one of my vehicles. I will post pictures when I get it put together later. I would like to know how people are powering these without being on the mains, are you using tool batteries or lead acids, or a grouping of smaller batteries in a carrier? I don't know that I want to hook it up to my car battery as of yet (I need to do some calculating to make sure I don't screw my alternator up before I add anything more to it.)

-Hooty