In most countries 90-120 V DC (!) is still considered safe to touch, so you could even electrify the whole body with the 20 V from the charger. And you can't re

In most countries 90-120 V DC (!) is still considered safe to touch, so you could even electrify the whole body with the 20 V from the charger. And you can't really "feel" 20 V DC even when touching it. is I'd wager what causes the shocking is not the voltage from the charger but static electricity buildup, due to the missing groundplane connection in the chassis. The voltages for such a buildup can be much higher (many kV) but the amount of charge is tiny. You nerves can feel it but it won't harm you due to the small amount of charge transferred [1]. How this charge gets there is another matter, there are many high-frequency components in a laptop that can induce charges in the chassis though. So definitely not a safety hazard, more an annoyance. 1: https://en.wikipedia.org/wiki/Electrostatic_discharge https://en.wikipedia.org/wiki/Electrostatic_discharge