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Hi Bulldog - you mention parasitic currents - any idea what they are - I had a similar problem and it turned out the radio was drawing excess current to maintain its memory. What I done was to place a multimeter between the postive terminal of the battery and the positive lead and then remove fuses in turn until I found which circuit was drawing the excess current. As already said it is possible the alternator control circuit has a short to earth.
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Honda Civic 1.4l