[dannmarr]

I had the alternator bench checked by Pep boys. It works fine, so what else could stop the battery from charging? Could the internal voltage regulator on the alternator prevent it from charging if the battery has a low output? (if the battery has a bad cell?) I say this because when the car stoped, the alternator was cold. As I mentioned earlier, the plug to the alternator has voltage and voltage is going to the battery. I don't know if the voltage drops while I drive and maybe triggering the voltage regulator. Any ideas?
I also need to mention that the dash lights go on and slowly fade.