This light is linked to computer systems within the car monitoring the voltage output of the alternator. If the alternator's output goes below or above a preset limit, then the dash light comes on.

The output of a generator can be represented on an induced current–time graph which is shown below. It shows four different positions of the coil of the generator, and the corresponding induced ...

The two biggest factors in an alternator's longevity are its maximum amperage output and its ability to shed heat efficiently. If your car's electrical needs are close to the maximum output of an ...