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Message: <blockquote data-quote="audiolife" data-source="post: 7754993" data-attributes="member: 541383"><p>Check drainage by resting voltage of the battery in hour to 2 hour intervals, 1500 watts of power is going to take 105 amps of power at 100% efficiency and the car is going to take another 40+ amps so if you have a 100 amp alternator it will not keep up as well as you might think.When you want to see how well this is done after the system is turned off for a couple hours and measured at the battery/batteries with the vehicle off.</p></blockquote><p></p>

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