Quote:
Originally Posted by DanEC
I'm not sure how much current I should consider this parallel circuit to run. A 1/2 watt resister could only carry mili-amps - I haven't figured it out (volt x amps = watts)
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If you just turn your key on, but don't start the car, the 12.6v in your system, running through a 20 ohm resistor, will result in just a hair under 8 watts by drawing .6 amps. As soon as the car starts, and the VR starts operating properly, there will no longer be a path to ground and thus no wattage at all.