74Adam Posted October 3, 2005 Share Posted October 3, 2005 I just got a 78 and was wondering what it should read under normal operating conditions? Right now it sits at about 14 and hardly moves no matter what I turn on. I had a 74 previously which had an ammeter so I am still getting a feel for the 78. thanks, -Adam Quote Link to comment Share on other sites More sharing options...
ezzzzzzz Posted October 3, 2005 Share Posted October 3, 2005 13.5 to 14.5 Volts is correct. You may see a slight voltage drop at night with a lot of accessories turned on. The ammeter is a more sensitive device and most of the electricals in the car are fed through it. Another way to test your charging circuit is to measure the voltage across the battery posts with a voltmeter. It will also indicate voltage drop as you turn on accessories. Quote Link to comment Share on other sites More sharing options...
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