The use of data cable for mobile phone charging is unstable, and the current is very small, only about 10mA, charging to be charged for a long time to be full, and the phone starts the USB connection process when connecting to the computer, charging is only an auxiliary function, so it is unstable, no good for the phone charger direct charging is a stable charging method that has been tested by the factory. If you don't give the phone a data cable after the factory, why do you need to match the charger