Does the Charger Consume Power After Charged Device Is Disconnected?

Yes, the charger will use some standby current (unless there's a switch), but the current can vary widely depending on the charger.I measured a dozen chargers a while ago and found the standby power usage varied from 19 milliwatts to 375 milliwatts depending on the charger. This works out to about 2 to 47 cents a year at average US power costs.

The switching power supply chip in the charger may be designed to minimize power when the charger isn't in use, for instance by skipping cycles when the load is low

Quite similar to this one. If I'm not mistaken any impulse mobile device charger is still consuming power, when plugged into socket, but when cable is disconnected from charged device. Correct?

Does the same rule goes for power sockets equipped with USB ports for charging mobile devices (link to Polish seller):

I was wondering, if this kind of construction means that my socket(s) will be continously draining power, 24 hours a day, no matter if anything is connected to it or not? Or do these have some kind of power-off "switch" (meaning stops draining power when everything is disconnected)?

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How Much Power Supply Voltage Regulator
There are different electric bikes with different experiences.Some are heavy and powerful, and move with a push of a button. Their pedals are more about legal status than about human power. I'd call them "scooters".Some are designed to supply power only when the pedals are turning. In that case you have to do a little work for the electric motor to kick in. These are usually called pedelec (from "pedal electric cycle").Some use sensors in the drivetrain to decide when to apply the power. Those often have a switch so you can get them to drive the motor without pedaling, giving them a "scooter mode".Some (like the StokeMonkey) apply the power directly to the drivetrain, so you always have to pedal to get them to work. If you're looking for exercise this is a good idea - no temptation to just cruise under power aloneWith new battery technologies a new kind of "bicycle" has emerged - so-called e-bike.It usually has an electric motor on one of its wheels. The motor is powered by a rather huge (size of a small bag) battery. Pedals, star wheels and the chain are still in place, so the user canuse it as a normal bicycle oruse pedals to assist the vehicle orjust rely on the motor and use it as a scooter.Speeds like 20 kmph witout using pedals are typically promised.What I don't get is in which scenario and how I use such vehicle.Do I use is as a scooter with ability to be driven by pedals once it runs out of the battery or do I use it as a bicycle with the motor assisting me and letting go faster without too much of activity?·OTHER ANSWER:With new battery technologies a new kind of "bicycle" has emerged - so-called e-bike.It usually has an electric motor on one of its wheels. The motor is powered by a rather huge (size of a small bag) battery. Pedals, star wheels and the chain are still in place, so the user canuse it as a normal bicycle oruse pedals to assist the vehicle orjust rely on the motor and use it as a scooter.Speeds like 20 kmph witout using pedals are typically promised.What I don't get is in which scenario and how I use such vehicle.Do I use is as a scooter with ability to be driven by pedals once it runs out of the battery or do I use it as a bicycle with the motor assisting me and letting go faster without too much of activity?
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