TENGSHUAI SHANBA NO.2

A charger tester is a compact device used for measuring and verifying charger and USB cable performance. Key functionalities usually include:

Voltage Monitoring
Displays the real-time output voltage, typically from 5 V up to 12 V or higher.

Current Draw Measurement
Shows how much current (in amps) a device or cable draws; can be used to test power delivery under load (often 0–5 A range).

Built-in Adjustable Load or Electronic Load
Allows you to manually set a current draw for stress-testing a charger’s regulation and stability.

Cable Resistance/Quality Test
Measures voltage drop under load to evaluate cable quality and detect weak cables.

Data Logging/Recording
Some testers store max/min readings or show graphs for performance over time.

A small rectangular unit with a display screen and buttons.

USB-A or USB-C connectors for input and output.

Menu-button cycles through measurement modes (Volts, Amps, Power, Protocol, Resistance).

Adjustable load via buttons or a simple potentiometer.

Safety protections such as current limit and temperature shutdown.