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At 12:58 PM 2/16/2005 -0500, you wrote:
My voltage alarm is set to go off at around 13.5 volts. This is higher than a fully charged battery. In other words, alarm goes off the instant that the alternator fails. System voltage is about 14.2 volts under normal conditions.
There are times when the system voltage will go as low as 13.2 volts when nothing is wrong. Below that, you are drawing power from the battery. Above that, the alternator is carrying the full load.
A yellow light might be a good idea when the system voltage drops below 13.8 volts.
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