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Message: <blockquote data-quote="helotaxi" data-source="post: 5077190" data-attributes="member: 550915">The cap has internal resistance that leeches voltage whenever the cap charges or discharges.  This is lost power and basically an added inefficiency to your charging system.  If it weren't for this loss, large caps might actually be of benefit, but because of it they are pretty much worthless.The original caps installed in a car were there to stabilize the voltage, but not from transient demands.  They were there to filter out the voltage ripple from the alternator.  The marketing department at Monster Cable took the actual purpose, amplified the cap's potential and sold them as stiffening capacitors.  The engineers had nothing to do with improving the contribution of the caps and they weren't really improved except by perception based on effective marketing.</blockquote>

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