I put the battery maintainer on the battery all day yesterday and over night. The charger showed full charge by the tins I got home from work yesterday. It's 30 degrees outside, so I could look for too long but I couldn't even fine the voltage regulator to check it. I don't know where they have it hid. Anyways, with the truck running, heat, and headlights on it was my meter said right at 15v. The ALT was putting out 15V at the battery stud. I wasn't able to check amps though. Thanks for your help!!