Laptop power supply permanently in the socket?

El
2

Is it harmful to the power supply unit if it is permanently connected to the socket and is used occasionally when the laptop is just empty? Perhaps it should also be said that this power supply is more similar to that of a cell phone, i.e. Not with the thick part in the middle of the cable. The connector itself is just a bit thicker.

Vo

No, the power supply does nothing. Only a small amount of electricity is consumed, which does not have to be!

Wi

Never mind, even the energy suppliers endorse that.