Hello Gang,
I had the Famous Battery Red light at high RPM's because of the brushes were finished on my High Milage Alternator ( 120 000 Miles).
So I purchased an Champion Rebuilt and a exide Battery (650 A the Duratec spec) because it was 6 years old.
Anyhow, I still have the red light but now it is different. Glows weak at at 800 rpm at get bighter as I press the gas(higher Rmp's).
I guess the Alternator is not charging ???
thanks