Just to make sure it's not your alternator.... put a hand held volt meter to your battery while your car is running. It should say 14. Even if you rev the motor, it will still read 14. If it is more, then you blew the internal regulator in your alternator. If this is the case, then you can replace it or rebuild it. If it's not, then your gauge is toast. Also, if you drive with the internal regulator blown, you could blow your car's computer.
