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Message: <blockquote data-quote="Dub7sonoma" data-source="post: 8176917" data-attributes="member: 649968"><p>When the car is running the alternator is charging the batteries and running the amp to a certain extent. Lets say your stock alternator has an output of 100 amps cold. Your car is going to use a lot of its output just to run. Once the amp draws more current than the alternator has left to put out, it pulling from the batteries</p></blockquote><p></p>

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