First off I'd like to say hello to all of you... I used to be a regular on this board but life has gotten in the way of my hobby for awhile. Now I'm taking my car out of storage and need some help with a charging problem... I can't seem to get any alternator to charge my system. I've got a one wire setup with a 100amp Powermaster and at the charging wire terminal on the alternator I can only get 11.9 volts. This is the second new and I assume good alternator I've tried and still can't seem to charge my battery. Battery is new and car starts immediately, however I'm afraid to take her out because the voltage seems to fluctuate from 12volts to maybe 11. Why can't I get a full charge? I've got an 8guage wire from the alt spliced into the battery cable before the starter which then runs to the trunk(1/0 cable). HELP... and it's good to be back.