Unlike a battery, which stores power as chemical energy that’s slowly and steadily discharged to keep your gadgets running, a capacitor can unload all of its juice in the blink of an eye. Even a small capacitor has the potential to stop your heart, but when it’s the size of a dishwasher, well, this watermelon…
Source: Gizmodo – Pumping 20,000 Volts Into a Watermelon Ends as Spectacularly as You’d Hope