Main Features:
Multifunctional Testing Tool, it can measure voltage, current, discharge flow, also includes timing, overflow and voltage protection
Small size, easy to carry and store, you can use it anywhere and anytime
The screen displays current and voltage data for easy viewing
With automatically save data function when interruption of power supply
Measuring Method:
USB input port is plugged into the 5V charger, USB output port is connected to a mobile phone, directly read the current and voltage parameters
Measuring Micro USB line quality: USB output port is connected to a mobile phone, USB input port is plugged in the 5V charger first, remember the voltage, then Micro USB input port is connected to the 5V charger, remember the voltage. The smaller the voltage difference, the better the quality of the Micro USB line
Use TP4056 and another linear charging circuit, through this capacity table, to fully charge the battery with completely no power, the capacity data is the battery capacity and using this method, you can also test the mobile phone charging capacity
Connect this testing tool to a portable power source and turn on it. Press the button until the capacity data is zero. Insert the cell phone to charge until the portable power source switches off automatically. The next time you open this testing tool, the display capacity is the portable power source output mAh
Voltage ( input / output ) : 4V - 30V
Current ( input / output ) : 0A - 5A
Accuracy: + / - 1 percent
Timekeeping: 0 - 99 hours
Timing: 0 - 24 hours
Power: 0 - 150W
Capacity: 0 - 99999mAh
Product Size(L x W x H): 7.00 x 2.40 x 1.30 cm / 2.76 x 0.94 x 0.51 inches
Package Size(L x W x H): 14.00 x 8.00 x 1.50 cm / 5.51 x 3.15 x 0.59 inches