[OKSooner]

It's the wattage, or "total energy" that kills.

Wattage is the product of Voltage time Amperage, or current.

That's why house current can kill. Plenty of amps in there, too.

One would think a large mechanical object like a car would draw lots of current, and at 330 volts... Just 10 amps at 330 volts would be 3300 watts - enough to arc weld with.

[PapaBear3625]

One would think a large mechanical object like a car would draw lots of current, and at 330 volts... Just 10 amps at 330 volts would be 3300 watts - enough to arc weld with.

1 horsepower = 746 watts, so a battery system capable of delivering 100 hp would need to be able to deliver 74,600 watts. That's a hell of a lot of juice