Soundings Posted October 4, 2010 Share Posted October 4, 2010 My charge arning light keeps flashing at me irrespective of the number of revs the engine is giving. I did some tests with a multimeter and these follow. Any ideas what the fault might be? 1) Fan belt is not loose and batteries do not need water. 2) Battery voltage after standing for a week: Domestic bank 11.5 volts. Starter battery 12. 5 volts. 3) Output from alternator at about 1000/1500 revs = 13.8 volts (measured direct from alternator) 4) Charge at battery terminal â€“ circa 13.6 volts. 5) Battery readings after about 20 minutes charging = 13.5/13.7 volts, domestic and starter. 6) Battery readings after being left to stand for about 20 minutes; Starter 13.2 volts. Domestic bank 12.6 volts. 7) Light continued to flicker throughout the charging process and at different rev levels. Taking the domestic batteries off-line (turn-off at isolation switch) made no difference. Quote Link to comment Share on other sites More sharing options...
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