View single post by answerman
 Posted: 02-08-2016 05:17 am
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Joined: 09-10-2012
Location: Little Chute, Wisconsin USA
Posts: 435
I have to disagree, Tim. That would be true of an ammeter, but since the JH has a voltmeter it's just a parallel connection across the entire system, like all of the components are. I would get the same voltage reading if I just connected a multimeter across the battery terminals as I do with the dash voltmeter (in fact, that's a good quick way to make sure your charging system is working... measure across the battery when the car's not running (should be 12v) and then when it's running (should be 13.5 to 14v).