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Message: <blockquote data-quote="mcgovern61" data-source="post: 192043" data-attributes="member: 59">Re-ran the same tests with everything turned on and now the voltmeter reads within +/- half a volt of what the battery is actually reading.  A great improvement with very little fluctuation.  But I noticed something else.  Now that I moved those two items off the acc terminal, the battery is no longer dropping below 12,8 volts even with the fan on and trailer hooked up.  Better yet, the top end voltage at idle is running 14.8 volts average.  At idle, the voltage did not drop below 12.8 but as soon as I let go of the brakes, the voltage popped right back up to 14 at idle.I have measured voltage at the battery many times in the past and I do not recall the voltage ever popping back up to 14 volts that quickly even with the fan running at idle.  I am starting to think that the connection of these items to the acc terminal was too much load on the wiring and the voltage regulator was getting a bad reading before this and not working correctly.I tried again with everything on, radio, headlight, turn signals, trailer hooked up and pulling the brakes plus the fan is running.  Darn if the stator is keeping up very nicely now even at idle!Once again......lesson learned. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite10" alt=":oops:" title="Oops!    :oops:" loading="lazy" data-shortname=":oops:" />  :head bang:</blockquote>

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