KKnoon 150W 20A Adjustable Electronic Load — 4 Modes, 2.4-Inch TFT Display, Battery Capacity Tester

Overview

Meet the KKnoon 150W 20A Adjustable Electronic Load, a versatile bench companion designed for power testing and battery profiling. Built to handle 0 to 150V DC and 0 to 20A with smooth control, it invites you to explore how different power sources respond under real-world conditions. The compact form sits neatly on a workbench, while the alloy heat sink quietly manages heat during longer test cycles. A bright 2.4-inch TFT color display presents key readings in real time, helping you stay in tune with voltage, current, and energy as you work.

Designed for hands-on workflow, this device emphasizes practicality and clarity. It blends four precise protections with flexible control, so you can push a battery or power supply through controlled tests without guesswork. The interface supports English and Chinese, and the device stores data locally for quick reference during sessions. Note that no PC software is required for day-to-day use, keeping your testing simple and focused.

Four Versatile Operating Modes

The four modes NC provide flexible loading profiles to match your testing needs. Constant current mode (CC) emulates a steady discharge; constant voltage mode (CV) tests how a source maintains voltage under load; constant power mode (CP) lets you regulate power delivery; constant resistance mode (CR) characterizes how a source responds to a fixed load. Switching between modes is straightforward via the front panel controls, enabling rapid iterations during experiments.

Key Features and Real-World Use Cases

• 2.4-inch TFT color screen shows voltage, current, power, energy, and timing at a glance for quick decision making.
• 0-150V load voltage and 0-20A load current cover a wide range of power sources, from USB Li batteries to lab power supplies.
• Max power of 150W with a note that performance above 120V may cap at 60W, helping you plan test limits.
• Four-wire measurement (A+ V+ V- A-) offers accurate readings and downward compatibility with simpler two-wire setups.
• External NTC temperature sensor support (0-100°C) helps monitor thermal conditions during hot tests without guessing.
• Overvoltage, overcurrent, and over-power protections let you set stop thresholds to match your safety preferences.

• Discharge control supports a time limit up to 99 hours and 59 minutes for long-duration tests.
• Maximums for energy and capacity are recorded (up to 999.999Wh and 999.999Ah) for quick capacity calculations.
• Measuring and zeroing features include total data zeroing, no-load nulling, and calibration options to keep readings consistent.
• All measurements are local on-device; the PC software option is not required, streamlining setups in busy workspaces.

What’s in the Box and Practical Considerations

The packing list keeps setup simple: one electronic load unit, one power adapter, and one NTC sensor. The design includes an integrated silent heat sink to maintain comfortable temperatures during extended tests, and the four-wire system supports complex test rigs while remaining accessible for everyday use. If you are profiling Li-ion packs, validating bench power supplies, or teaching power electronics concepts, this tool offers a practical, hands-on way to observe how sources respond to different loading profiles.

Technical Highlights

Voltage range: 0-150V; Current range: 0-20A; Power range: 0-150W (60W above 120V). Discharge controls and protections are configurable, with open calibrations and brightness adjustments on the display for readability in different lighting conditions. The device places emphasis on reliability and ease of use, helping you focus on observations rather than setup.

Notes

PC software access is not provided online, but the unit includes robust on-device controls and data handling to support everyday testing workflows.