This adjustable constant current USB load tester is designed for comprehensive performance evaluation of chargers, cables, and power banks, featuring an OLED display that provides instant readings of current, voltage, resistance, capacitance, temperature, and test duration. The device supports a wide voltage range from DC3-21V and a current range of 0-3A, with dual potentiometers allowing both coarse and fine current adjustments for precise control. It includes a QC2.0/QC3.0 trigger for testing fast charging protocols at 5V/3A, 9V/2A, 12V/1.25A, and 20V/1.5A. Multiple USB-A ports ensure compatibility with micro-USB, mini USB, USB-C 3.0, and standard USB cables, enabling you to measure cable impedance and assess quality. The advanced thermal management system features an aluminum radiator
This adjustable constant current electronic USB load tester features a clear OLED screen display that shows real-time current voltage resistance capacitance temperature and elapsed time for comprehensive monitoring
With dual potentiometers for coarse and fine current adjustment between 0-3A and a voltage range of DC3-21V you can achieve precise control for accurate load testing of chargers cables and other USB-powered devices
The included QC2.0/QC3.0 trigger allows you to test fast charging protocols at 5V/3A 9V/2A 12V/1.25A and 20V/1.5A making it ideal for evaluating the performance of quick charge power sources and ensuring reliable charging speeds
Multiple USB-A ports offer compatibility with a wide range of cables including micro-USB mini USB USB-C 3.0 and standard USB so you can assess cable quality measure impedance and distinguish between different charge and data cables
An advanced temperature control system uses an aluminum radiator with a copper coil fan that automatically activates above 55°C and stops below 45°C efficiently dissipating heat and extending the lifespan of the tester during extended use
Measuring 5.5 x 3.5 x 2 inches and weighing 3.99 ounces this compact tester is easy to transport and store making it a practical tool for laboratory workshop or personal electronics diagnostics and maintenance tasks