Hey, I've got one of them TO-220 voltage regulators for dropping a an increased voltage input to 5v. It's from Radio Shack and has three prongs, one is input, one is ground, the other is output. I have a 12v battery that I'm working with. I have the regulator inline with the + cable from the battery. So I have a + line comming from the battery to the input on the regulator, then I have the middle prong grounded to a piece of metal, then I have the + line comming out from the output prong on the regulator. Well, it's supposed to bring it down to 5v, but I have the 12v going to like 10.6v. I bought a second regulator, assuming the first was fried, and it does the exact same thing, leading me to believe I've done something wrong. Any and all help is appreciated. I can post pics if that helps to clarify things, just ask. Also, I just broke open my cell phone car charger, and have the JB3 running off remote power for going on 6 hours...and I'm only 3/4 of the way dead on my Eco-Charge. Peace, -Ian