Treedix USB Ammeter Voltmeter Charging Capacity Tester Detector Tester Multimeter Test Speed of Charger, Cables, Computer, Power Bank

Product Description

Instructions for use:

Measuring voltage and current:
Plug the USB male connector into the 5V charger, the female connector into the mobile phone and other devices, and directly read the voltage and current parameters

Test the quality of the MicroUSB cable:
Plug the mobile phone into the female socket, first plug in the 5V charger with the male connector of the machine, remember the voltage, and then use the MicroUSB cable from the 5V charger to the MicroUSB hole of the machine to remember the voltage. The smaller the voltage gap, the better the quality of the MicroUSB cable.

Test battery capacity:
Use a linear charging circuit such as TP4056 to charge a completely dead battery through this capacity meter. The capacity reading is the battery capacity. This method can also be used to measure the charging capacity of the mobile phone, and even calculate the charging efficiency of the mobile phone.

Test mobile power output capacity and efficiency:
First connect this machine to the mobile power supply, turn on the mobile power supply, press and hold the button until the capacity data is zero, insert the mobile phone several times and charge until the mobile power supply is out of power and automatically shut down. The next time the machine is turned on, the displayed capacity is the mAH output by the mobile power supply.
Data reset:
Press and hold the button until (the number of data sets) become the next set and then release the button, it will automatically jump to the next set of data and start from zero.

Data view:
Quickly double-click the button (within 0.5S) to enter the data viewing mode, the backlight LED will flash, and then display the next set of data, double-click to exit the data viewing mode, and the backlight LED will stay on.