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what charges the battery? what wires are responsible for doing that?
The dynamo in the alternator turns inside a magnetic field creating energy.
The mechanical motion develops a certain amount of power depending on the load. Ie:ignition, heater motor,headlights,wiper motor,powerful stereo amplifier.
When there is a need for power the Voltage regulator sends a signal to the alternator for more power as it has to disperse more power.
Tests should never be done at engine idle.
VR's don't cut in until about 800 rpm.
I think you need the FTE Electrical forum and talk to Dave.
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