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How Much Electricity Does Phone Charger Use. Electricity usage of a Cell Phone Charger. But how much power does it consume.
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How much does it cost to charge my phone. Thats how much energy the battery can store. Most devices use 5 volts so you can calculate how much power in watts is being used with the simple equation Volts Amps Watts.
It looks like its 135 Wh.
This article gives more figures for different standbys and gives that for a phone charger at about 04W. For phones it is usually around 12A at 50V. If the electricity cost is 10 cents per kWh the cost of the stored energy would be 0135 cents per full charge. USB charging usually delivers 500mA 05A at 50V.
