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Message: <blockquote data-quote="audiolife" data-source="post: 6826470" data-attributes="member: 541383"><p>Easy the back battery will get used more than the front and a charged battery rests higher than 12.5 (wet cell or agm if it is charging). When a battery can discharge at greater than 4c and can only recharge at (.3 to .4c) it may be able to do some short term bulk charging at a higher rate but it will get hot and its still much slower than its discharge rate. Your alt isnt big enough if you do loud listening. Your car will use 30-40 amps just to run so that drops your alt down to around ~70 amps which it will be less than that at idle or lower speeds. A true 1900 watt system can pull more than your alt can put out max without even considering what the car needs to run.</p></blockquote><p></p>

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