The USB plug and MicroUSB port are dual power sources. The USB plug is connected to a 5V charger, and the socket is inserted into devices such as mobile phones to directly read voltage and current parameters.
To connect a microUSB cable to a mobile phone and other devices, insert a 5V charger into the plug, remember the voltage, and then insert the microUSB cable of the 5V charger into the device's microUSB port, remember the voltage.
Measure the output capacity and efficiency of the mobile power supply: First, connect the mobile power supply to the phone, turn on the phone, press and hold the button until the capacity data returns to zero, and then insert the phone multiple times until it works. The power will automatically turn off. The display capacity is the milliampere hour of phone power when the device is next turned on
Click the data switch button to switch to the next record, and double-click the button to switch to the previous record. Press and hold this button for more than 3 seconds to clear group data.
It can display voltage, current, and milliampere hour data simultaneously, making it easy to view and detect mobile output power. It can save multiple test records without affecting data transmission.
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