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Message: <blockquote data-quote="helotaxi" data-source="post: 1578609" data-attributes="member: 550915"><p>Nope.  Throw in a 250A alt and yes.  The big 3 doesn't create energy.  Neither does a battery or a cap.  The big 3 helps eliminate voltage drops during periods of high current demand but only helps if the alt is big enough to support the stereo.  Properly set up and listening to music the amp won't draw 200A, but it will still draw more than your alt can supply.  Your battery can help take up the slack but only for a short period.  Once it is partially discharged, the battery is just another load on the alternator.  Adding additional batteries just makes for a larger load.  The alt is the source of all the current in the car and upgrading it is the only way to get more current available for your system.</p></blockquote><p></p>

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