Quote:
Originally Posted by GrahamHR
The voltage using a multimeter directly on the battery, is near as dammit that shown on the plug in voltmeter ( 0.01V different).
Sometimes 14V+, sometimes 12.1V
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My next step would be to test the alternator output directly as previously described to see if the output voltage has similar behaviour.
If alternator output is consistently above 13v, something odd is happening between the alternator and the battery or with the battery itself.
The electrical system Design and Function section of Vida might shed light on exactly what normal behaviour is.