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<blockquote data-quote="bikejunkie223" data-source="post: 1252002" data-attributes="member: 563147">I don&#039;t think it&#039;s a misconception at all. The electrical system provides a finite amount of current at a finite voltage, as you play a system loud, huge bass hits draw big shots of current from the system, this can affect overall system voltage. As electrical system voltage drops, lights will dim, and when the voltage comes back up, the lights get bright again. A cap stabilizes this voltage drop, thus helping prevent lights from dimming. Everybody is real eager to hate on caps, but they are really just misunderstood. Hell, when the car is running, the battery functions as a capacitor, it just can&#039;t charge and discharge as fast. This is why on older cars you could change the battery out with the car running to prevent losing radio presets and anti-theft codes and such, though that is not recomended with modern computer controlled cars-the electical power comes from the ALTERNATOR, this runs the car and charges the battery, and feeds your amps. A cap will NOT help an ailing charging system, or a stereo system that is drawing more current than the alternator can provide, but in a car with a healthy charging system, they can do some good, as long as you know what to expect.</blockquote>

[QUOTE="bikejunkie223, post: 1252002, member: 563147"] I don't think it's a misconception at all. The electrical system provides a finite amount of current at a finite voltage, as you play a system loud, huge bass hits draw big shots of current from the system, this can affect overall system voltage. As electrical system voltage drops, lights will dim, and when the voltage comes back up, the lights get bright again. A cap stabilizes this voltage drop, thus helping prevent lights from dimming. Everybody is real eager to hate on caps, but they are really just misunderstood. Hell, when the car is running, the battery [I]functions[/I] as a capacitor, it just can't charge and discharge as fast. This is why on older cars you could change the battery out with the car running to prevent losing radio presets and anti-theft codes and such, though that is not recomended with modern computer controlled cars-the electical power comes from the ALTERNATOR, this runs the car and charges the battery, and feeds your amps. A cap will NOT help an ailing charging system, or a stereo system that is drawing more current than the alternator can provide, but in a car with a healthy charging system, they can do some good, as long as you know what to expect. [/QUOTE]

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