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Wall-mounted Charger Charging Power
Sep 21, 2018

Input: 100-240V 50/60Hz 0.2A output: 5.0V 550mA input is 100 x 0.2 = 20 watts. Why use 100, because the parameter is in the limit case, if use 240, the current is not 0.2A. The output power is 5 x 0.55 = 2.75 watts. It is in charge state, no charge, no current, no output power. Description: Input power is achieved when the charger is fully loaded, that is, if you charge at 5.0V 550mA, the power consumption is 20 watts. If you do not charge or charge fast enough, the current will be very small, so the power will be very small and can be ignored.

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