The no-load power test was designed to answer the question of whether a charger is wasting power if it stays plugged into a socket
Dec 13, 2022| The no-load power test was designed to answer the question of whether a charger is wasting power if it stays plugged into a socket, and how much power it consumes over the course of a year. After the power meter test, the standby power consumption of the charger at 220V 50Hz is 0.137W, which is converted to about 1.2KW·h a year. If the municipal electricity price is 0.6 yuan /KW·h, the charger's electricity cost is about 0.72 yuan a year.
When the charger is 110V 60Hz, the standby power consumption is 0.073W. After conversion, the annual power loss is about 0.64KW·h. If the municipal electricity price is 0.6 yuan /KW·h, the annual electricity cost of the charger is about 0.38 yuan.
summary
After the above no-load power test, the Mi Rubik's Cube converter Pro is completely lower than the standard of GB20943-2017 at 220V 50Hz; Under standard conditions, Mi Rubik's Cube converter Pro is plugged into the socket and not used in the 220V 50Hz mains environment, which will consume about 0.72 yuan in a year. Under 110V 60Hz mains environment, it will consume about 0.38 yuan in a year. It's basically negligible.
