USB Tester Multimeter Digital 4-30V 0-6.5A, QC 3.0 Power Meter Voltage and Current Tester Detector, Volmeter Ammeter Power Bank Capacity Tester with IPS Color Display
Additional Features- IPS LCD Display: Uses a 0.96-inch IPS high-definition color LCD display to display the state of charge of the appliance, voltage, current, capacity, energy, power, equivalent impedance, temperature and other indicators at a glance. 4-bit accuracy for more accurate measurements.
- Measure The Quality of The Charger: Connect the same load, compare the no-load and load. The larger the voltage drop, the worse the charger capacity, the worse the quality. The voltage drop is not obvious or the voltage rises, the better the load capacity of this charger, the better the quality.