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Message: <blockquote data-quote="Astyl" data-source="post: 2204767" data-attributes="member: 566433">So i was just messing around with my DMM today and i decided to do some reading of my battery, basically right now i have stock wiring, stock alternator, and a optima redtop under the hood.. thats connected to a dinky 400 watt rms sony amp pushing two amateur 12's... with the car turned off the voltage goes from 12.5 to 11.9 within like a 2 minute period and keeps declining.. with the car turned on the voltage hovers around 13.2 - 13.4, where it should be at 14.4 correct?Is this a bad omen for the future? considering im wanting to get a eD Nine.1 @ 1200 watts rms and like 60% efficency, instead of this 400 watt rms sony amp? im guessing i need to upgrade bigtime before i can even think about it</blockquote>

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