3 to 20V DC; Current: 0.05 to 3A (USB-A); 3 to 20V DC; Current: 0.05 to 5A (USB-C) Continuously Monitor Up to 1000 Hours of Voltage, Current, Capacity/Charge Delivered, Energy, and Resistance (Calculated), Tests Most Common Standard USB-A or USB-C Ports, Including Qualcomm Quick Charge® Ports