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Boma wrote:how does a stun gun powered by a 9V battery pack enough juice to incapacitate someone? I've been shocked by a 9V by touching the + and - ends with wires as a kid and it's not that strong.

pretty much the same way you can get 25,000 Volts from a 110 volt TV set.

Boma wrote:how does a stun gun powered by a 9V battery pack enough juice to incapacitate someone? I've been shocked by a 9V by touching the + and - ends with wires as a kid and it's not that strong.

Stun guns use what amounts to a "step-up" transformer to convert 9V to many thousands of volts while maintaining low amperage. The electrical system in your vehicle is only 12V, but if you reach across the coil/ignition system.......well, you'll soon get the idea.

Boma wrote:

how does a stun gun powered by a 9V battery pack enough juice to incapacitate someone? I've been shocked by a 9V by touching the + and -ends with wires as a kid and it's not that strong.

The link below should explain the principle a little better. Believe me, you don't want to get stunned by a quality stun device.

http://en.wikipedia.org/wiki/Electroshock_gun