KKnoon 150W 20A Adjustable Electronic Load — 2.4" TFT Display, CC/CV/CP/CR Battery Capacity Tester

KKnoon 150W 20A adjustable electronic load is a benchtop DC testing instrument for discharging, measuring and troubleshooting batteries, power supplies and power modules with CC/CV/CP/CR modes shown on a 2.4" color display.

This compact, feature-rich electronic load accepts 0–150VDC and up to 20A for controlled discharge and stress testing. It records accumulated energy and capacity up to 999.999Wh / 999.999Ah, supports safety limits (OVP/OCP/OPP), and offers a four-wire connection for accurate voltage and current sensing. The integrated alloy heatsink, external NTC temperature input, and selectable screen settings make it convenient for lab benches, repair shops and hobbyist workstations.

How does the KKnoon electronic load measure battery capacity and energy?

The unit precisely integrates current over time to compute both amp-hours (Ah) and watt-hours (Wh), showing cumulative results on the 2.4-inch TFT screen. It supports long-duration timing and saves totals that can be zeroed when needed for fresh tests.

• Capacity range: up to 999.999Ah for deep discharge tests
• Energy range: up to 999.999Wh for watt-hour reporting
• Cumulative time format: days:hours:minutes:seconds for extended runs
• Zeroing function to reset totalized measurements between tests

What protection and limits can I set to keep tests safe?

Built-in protection covers voltage, current and power exceedance with configurable stop conditions so you can prevent over-stress. The device also supports low-voltage cutoff and time-limit shutdown to protect cells during automated discharges.

• Overvoltage protection up to 150V and overcurrent up to 20A
• Over power protection up to 150W (note reduced max above 120V)
• Settable stop voltage (low-voltage protection) and time limit (up to 99:59:00)
• Automatic thermal control via alloy heatsink and internal temp threshold

Which operating modes are available and when should I use each?

This load supports four common modes—constant current (CC), constant voltage (CV), constant power (CP) and constant resistance (CR)—to match different test scenarios. Choose CC for capacity/discharge tests, CV for simulating constant-voltage sources, CP for stress-testing at fixed power, and CR for resistance-based loading behavior.

• CC: maintain a set current to measure discharge curves and Ah
• CV: hold a set voltage for source compliance and regulator tests
• CP: fix power to test thermal and efficiency characteristics
• CR: emulate a resistive load to check voltage sag and behavior

How does the display, calibration and user interface simplify testing?

The 2.4-inch TFT color display shows voltage, current, power, capacity, internal resistance and protection status in clear segments. The unit supports English/Chinese language switching, screen brightness and sleep settings, and both voltage and current open-circuit calibration for accurate readings.

• Clear multi-parameter display: V, A, W, Ah, Wh, resistance and alarms
• English/Chinese interface toggle and screen brightness adjustment
• Voltage/current no-load zeroing and open-circuit calibration supported
• Restore factory settings when you need to revert configuration

Who this is for: The KKnoon 150W 20A adjustable electronic load is aimed at electronics technicians, battery builders, makers and small labs that need a compact, accurate tool for capacity testing, power-supply validation and component stress testing. It’s well suited for hobbyists and professionals who need configurable protections, multi-mode loading and clear data reporting without bulky rack equipment.