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

KKnoon’s 150W 20A adjustable electronic load is a benchtop DC load and battery capacity tester with a 2.4" color display and four selectable working modes for precise discharge, measurement and protection settings.

Designed for hobbyists, technicians and small labs, this compact electronic load accepts up to 150V and 20A (150W) and gives clear readouts of voltage, current, power, energy and capacity. It supports four modes—constant current (CC), constant voltage (CV), constant power (CP) and constant resistance (CR)—and includes configurable over-voltage, over-current and over-power protections. The unit records cumulative energy and capacity up to 999.999Wh/Ah, offers timed discharge up to 99:59:59, and accepts an external NTC sensor for temperature monitoring.

How does the KKnoon electronic load measure battery capacity?

The device discharges a battery under controlled conditions and integrates current over time to calculate capacity in ampere-hours and energy in watt-hours. Readouts are presented live on the 2.4" TFT color screen, and the unit stores cumulative timing for long tests.

• Capacity resolution up to 999.999Ah and energy to 999.999Wh
• Timed discharge function with days:hours:minutes:seconds format
• Selectable stop voltage to avoid over-discharge of batteries
• Real-time display of voltage, current, power and internal resistance

What protection and safety controls are available?

You can program limits for voltage, current and power so the load automatically stops when thresholds are reached, protecting both the device under test and the electronic load. An integrated alloy heat sink and automatic fan control engage when temperature or current demands rise.

• Over-voltage protection up to 150V and over-current up to 20A
• Over-power protection up to 150W with behavior change above 120V
• Automatic thermal management: heatsink controlled operation above ~40°C or >3A
• Optional low-voltage cutoff and user-settable time limits (up to 99:59:59)

Which inputs, outputs and calibration features does it offer?

The KKnoon load uses a four-wire connection (A+ V+ V- A-) for accurate measurements but remains compatible with simpler two-wire setups. The unit supports open-circuit calibration and zeroing to keep measurements accurate over time.

• Four-wire measurement method for reduced lead-drop error; downward compatible with two-wire
• Voltage and current open-circuit calibration and zeroing of total data
• Screen brightness and sleep/hibernation settings for bench convenience
• Chinese/English interface toggle and factory reset available

How portable and practical is this tester in a workshop?

The tester is compact and lightweight at roughly 165 × 95 × 80 mm and 400 g, making it easy to move between bench stations or bring to field tests. Its clear TFT color display simplifies reading during long discharges and the external NTC sensor adds thermal context when testing high-current sources.

• Small footprint and 0.88 lb weight for easy bench use or transport
• 2.4" color screen shows multiple parameters simultaneously
• External NTC 3950 10K sensor input for temperature monitoring (0–100°C)
• Supports stop-voltage, timed discharge and multiple working modes for test flexibility

Who this is for: The KKnoon 150W 20A electronic load suits electronics hobbyists, battery pack builders, small repair shops and educational labs that need an affordable, accurate DC load and battery capacity meter. If you test lithium packs, adapters or DIY power supplies and require programmable limits, timed discharges and clear on-screen telemetry without complex PC integration, this model balances capabilities and portability.