I'm curious about power consumption of things like the power supply for my dell laptop its and AC/DC adaptor, and when the unit is charging my laptop it gets quite warm. from that I infer that its using a fair amount of power.
now, if I leave it plugged into the wall, but remove the laptop, it does not heat up, but. there is a little light on it that indicates it is receiving power. aside from that little light, is it using any significant amount of power? The label on the unit says the input is 1.5a
same question goes for my cell phone chargers 0.2a
I understand that some of these things do use power constantly, but... how much?
I found this link but it doesn't get into the Nitti gritty I was looking for