initially, my alternator finally went bad on a 14+ yr old car and got it replaced. It ended up solving the problem, but only for a short while, it went out AGAIN, so i got it replaced. The third time (current), my mechanic looked at me saying how i have a weird car, he put the voltage tester on the battery....it charges sometimes, sometimes it doesn't....so what's wrong with my car? could it be something else in the electrical system that could be causing my alternator to short out or just not want to charge? what could i possibly look at to solve this problem? oh yeah one more thing, could the battery affect it? i also changed the battery to a dry cell, i believe it's an odyssey pc680. Any help is appreciated.

thanks in advance

 

Perhaps the alternators you've been getting are crap. What you're describing sounds to me like a faulty voltage regulator (it's internal).

 

could the voltage regulator burn out the alternator? let's say it can, does that mean i have to replace the alternator once AGAIN and replace the regulator at the same time?

 

I had the same problem my alt went on me replaced it and now after a week the RPM's go upto 1k and the battery light flashes...Im gonna have my battery checked out and see.....
But for the mean time what do you guys think it could be?