Review on UCTRONICS Electronic USB Load Tester: Adjustable Discharge Resistor Module with 35W Power, Testing and Triggering Rapid Charging Protocols QC2.0 QC3.0 AFC 9V FCP, Intelligent Temperature Control & Cooling Fan by Johnny Snyder

UPDATE: 3 months later The USB tester now stops working and only shows a brief F35 error when trying to use it. Awaiting response from seller. The review was downgraded due to a lack of documentation on what this error code could mean and the durability of the tester. Works well for testing different loading modes of QC2.0 and QC3.0 and AFP. Screw terminals make it easy to test 2A 18650 batteries Cons: mAh not retained after power off, no memory.