Battery Source

By now, most will realize that electricity is pretty dangerous stuff and not
to be trifled with. Yeah, it's maybe okay in small doses, flashlight
batteries come to mind as being pretty safe if not swallowed.

Not a believer? If you want to see the incredible destructive power that
lurks in seemingly innocent, but higher voltage batteries, try touching the
terminals on a cute little 9 volt battery to a scrap of fine steel wool!!
(use caution and make sure the steel wool in on a surface that won't burn)

Yup, 12 volts DC is right at the maximum sane voltage. Any more is downright
foolish. In fact, the force fields that result from adding just 2 additional
volts (14 volts DC) will cause the hapless pilot to undergo some sort of
cultish brain damage. In some cases these poor deranged pilots will then
start preaching on street corners, warning those who use lesser voltages
that the end is near and they will be discharged.

Curiously, by abandoning the idea of using DC (direct current), and
switching all systems over to AC, alternating current, one can safely
increase voltage doses up to about 120 VAC or so, with little attendent risk
of dain bramage. Beyond that, there is the ever present risk of
vaporization. Which is, of course, why pilots should do their best to avoid
high voltage transmission lines.

all the best,

bumper (12 volts DC and proud of it)