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      05-17-2009, 12:25 PM   #75
808MGuy
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Drives: 2009 E90 M3
Join Date: Jun 2008
Location: Oahu, Hawaii

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Quote:
Originally Posted by swamp2 View Post
808MGuy: The voltage you measure at the battery terminals when the car is running is the alternator voltage, not the battery voltage, and as I mentioned at idle this is something like 14.5-14.8.
Yes I already mentioned that but if the engine on voltage is not getting up to 14V it could point to other problems. It looks like your charge voltage is good though.
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