an ignition coil works because there is a winding around a metal core which induces a higher voltage on a secondary winding.
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**** Here's your answer. Whats inside your alternator?? a winding (stator) around a metal core (rotor) which induces a higher voltage into the secondary winding (stator)
Some alternators have an "S" terminal on them. The S is the stator take off, they use this high voltage AC take off to heat windshields and various other applications in high end vehicles.
Disconnecting the battery opens the DC circuit and you now have a high voltage condition in the vehicle, not in the battery.
Quote: but like I said, I'm gonna try it and see what the voltage goes to. unfortunatly, I need to wait until i replace my battery cause it died a while ago and I havent replaced it yet.
