Digital USB Mobile Power Charging Capacity Current Voltage Battery Tester Meter Charger Doctor Voltmeter Ammeter

This product can test USB charging current, voltage, discharge capacity, intelligent devices.
It will show the current and voltage at the same time, convenient to check.
It can be very easy to find digital devices charging problem.
The only button on the tester is used to view and test data switch, the tester can store 10 groups of test data.
If there were no battery, it won’t lose the data it has tested.
It can test current and voltage of phone, mobile power bank etc.
With a USB output port and a micro USB input, convenient to test devices
With LCD screen, easy to see the current and voltage of the devices
Press the small circle button and the data will be zero, then you can test next data
Portable design, easy to carry