Less than 12V on VR Input w/pics

I suspect Dana's point was that there should be no voltage drop with the key on or off unless something besides the ignition and field are drawing power. Voltage drop only occurs when current meets resistance. Key on with a normal ignition and field should draw no more than 5 amps. The ammeter will show whether the battery is supplying 0 amps or 5 amps or more.