only takes 0.1 amps to electrocute.
Yeah, at a million volts alternating current.
The charger transforms the current to DC. It's like dropping a flashlight into the bathtub and getting killed.
This is for AC at typical power distribution frequencies (50-60 Hz):
As the amount of steadily applied current increases, deeper tissues are affected resulting in laboured breathing at between 20 and 100 milliamperes and possibly heart fibrillation, at 50 to 100 milliamperes. Once in fibrillation, the heart generally does not start beating normally again without intervention. This will result in death.This is why GFCIs are set to trip at around 5 mA.Above about 100 milliamperes our breathing stops and our hearts can no longer beat. If the current is removed soon enough, our hearts may begin to beat again and there may not be any permanent damage.Our skin begins to burn above 300 milliamperes. As the current increases above an ampere, skin, muscle and internal organ damage will occur.
DC at 5 Volts, 1 Amp is considered safe.