Quote:
Originally Posted by davids2toys
Maybe I'm way off here, but couldn't you use that clamp meter to measure your Real/actual amperage going thru the CB?
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Yes, with the engine off and everything turned on that would give an exact reading on the total amperage. It was just easier to add it all up in my head than to walk downstairs to the garage and actually measure it.
Since all my lights are LEDs, which account for very little current, my fans and head lights are pretty much it. Of more interest is the amp draw by the fans. If you look at your SPAL data sheet, it has a nice little table that shows the different current draws based on the temperature and whether you have it as a pusher or puller. When I shut down my engine, and it is nice and hot, the current draw, as measured, is five amps or so more than when the engine is cool. Of course, the voltage is a little lower too since the alternator is not running.