Do Phone Chargers Use Energy When Plugged In. In other words the phone had to work harder generate more heat and suck up more. I have the feeling the original poster was asking if they drew as much power as if they were being used and the answer is no but the answer is yes if they are asking if the power draw is non-zero when simply plugged in and not used.
When it is just plugged into the wall while charging it varies anywhere from 2 watts to 7 watts depending on the phone and about 05 Watt when not charging. Best thing to do is probably have a multi-socket lead which your chargers plug into under your desk and you can just pull that out of the wall when not in use. Even if your charger is plugged in and connected to nothing its pulling a.
According to Energygov cell phone chargers use 224 watts of energy while plugged in and in use but still continue to draw 26 watts once your phone is disconnected and the charger is left plugged in.
Even worse is a charged laptop thats still plugged in which consumes 2948 watts 66 percent of the 4428 watts consumed while charging. According to my tests a genuine Apple iPhone charger uses in the region of 135W of power a month which equates to just over 15KW h a year which means that if. You will not save a 1 a month. The amount of energy consumed by chargers when not charging phones or power packs when not driving your laptop often called vampire energy is so small that the amount you save in a year by unplugging would not buy you a candy bar.
