Quote:
Originally Posted by Fordpowerstroke350
You can not immediately check a battery charge on shut down as you get what is referred to as a surface charge and not the true reading. If you turn on the lights for a moment sfter shutting down this will drain off the surface charge to give you a correct reading
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hmm didn't know that... thanks!
well tested the truck as soon as i got home from work (roughly a 10min highway drive).
With lights on and radio on the volt meter said 12.7 staying somewhat constant. when i turned the fan on high she quickly began to drop in voltage, about .01 volt per every two seconds. when i turned all electronics off including lights i was up at 13.4.
like i said earlier i had napa test both batteries and alternator and they said they're all good.
this sound like its my voltage regulator? or maybe something else is draining the power somewhere?
thanks for the help so far all....
