How to use a multimeter to detect wireless chargers:
The nominal output voltage of the mobile phone charger is about 5.3 volts, we can use the DC voltage file of the multimeter to detect the quality of the mobile phone charger, the multimeter range switch is adjusted to 10 volts, and the multimeter pen is used to measure the output voltage of the mobile phone charger if it is lower than five volts or no voltage output it indicates that the mobile phone charger is damaged.