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      11-05-2017, 12:22 PM   #17
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Drives: E92 M3
Join Date: Jul 2011
Location: LA, CA

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Quote:
Originally Posted by carenthuziast View Post
I read that the alternator does not charge the battery unless the RPM's are over 3500. So when you're in idle, power is drawn off the battery, so maybe your battery is dying.
i read on the forum that it was the opposite, when on full throttle, alternator disengages
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