Do Chargers Draw Power When Not In Use. Some cords do suck vampire power even when nothing is plugged into them. Note that the power rating on devices is the MAXIMUM they use when under MAXIMUM load unless it says otherwise so dont assume its what they always use.

One phone charger on its own will only draw a tiny amount of power. In that case the answer is Yes. A spokesperson for the Energy Saving Trust adds.
I mean only when the car is just sitting not on or with opened doors.
Since the charger is not connected to the laptop the load it will result in a waste of electricity but it would be a very very small amount. Any charger that is plugged in at the wall and not switched off at the socket will still use some electricity even if its not plugged into. Modern chargers work the same as the power supplies in most other electronics today. The 36 watts is consumed by the wall connector not the car.

