Description
A compact and effective USB DC electronic load tester, designed to test the current output capacity of USB power supplies, chargers, and power banks.
This unit allows for switchable current loads of 1A, 2A, and 3A, using a combination of 2.2Ω and 4.7Ω 10W resistors.
Perfect for diagnosing power supply strength, stability, and performance under load. Built in toggle switches allow you to select current draw by engaging one or both resistors.
- Current Settings:
- 1A (4.7Ω resistor)
- 2A (2.2Ω resistor)
- 3A (2.2Ω + 4.7Ω combined)
- Connector Type: USB Type-A Male
- Resistors: 2.2Ω 10W + 4.7Ω 10W
- Adjustable Load: Manual toggle switches (1A, 2A, 3A)
- Power Rating: Up to 15W combined
- Form Factor: Compact with built-in resistive load
- Cooling Note: Resistors heat up significantly during use
- Safety Warning:
- Do not touch resistors while in use
- Do not leave unit unattended during testing
- May emit light smoke on first use (normal for new resistors)
What’s Included:
- 1x USB Adjustable Load Tester (1A / 2A / 3A)
Great For:
- Testing USB chargers and power banks
- Diagnosing current supply capacity
- DIY electronics and repair kits
- Verifying performance under load
- STEM education and electronics learning
Usage Tips:
- Always use in a well-ventilated area
- Avoid prolonged usage without a heatsink or fan
- Observe resistor heating and handle only after cooling
- Connect to 5V USB supplies only – not for fast charging or high-voltage ports
