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Old 01-08-2013, 05:46 PM   #3
Warin
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Joined: Aug 2012
Oddometer: 1,929
The red light says - the battery has more voltage than the alternator.

As the alternator is only some 280 watts at maximum, you cannot expect it to put out much power at idle speed. And it certainly won't put out enough to cover the 'normal' load at idle. With a more powerful alternator or less load this does not happen...
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