How Much Electricity Does Charging Your Phone Use. Cell Phones use approximately 2 to 6 watts when charging while a charger left plugged in without a phone will consume 01 to 05 of a watt. These controllers use a.
Another design of charge controller is a switching controller. Either way this shows us that the amount of vampire power consumed by your chargers is. Lets assume 1 full battery cycle per day and its charged of your home AC and not car Typical smartphone battery is 3000mAh Li-ion batteries are nominally 37v - 111Wh of battery consumed per day lets say efficiency of charging is 90 - 123Wh of electricity per day.
Take a look at the iPhone 12.
A 2012 US study found that the average mobile phone draws around 368 watts when charging and around 224 watts when plugged in and fully charged. When the device is plugged in but fully charged that number drops close to zero. At an average price of 12 cents that means that your phone uses about one quarters worth of electricity per year. Now with respect to cell phone charger wattage your cell phone charger uses about 20 kilowatt hours of energy but only if its plugged in.
