Electronic Load Tester DC 12V 250W 0-20A, Battery Capacity Tester with Digital Display, Constant Current Discharge Power Meter for Lithium and Lead - Batteries up

Item Type: Electronic Load TesterMaterial: PCB, aluminum alloy. Power Supply Voltage: DC 12V ± 5%Maximum Voltage: 100VConstant Current Discharge and Current Regulation Range: 0-20AWorking Mode: Single CC mode of constant current. Maximum Error of Discharge Current: 0.7%, 0.01A. Maximum Discharge Power: 250WBasic Function:1. Constant current discharge. 2. Display voltage and current simultaneously during discharge, visually reflecting the discharge situation. 3. Separate voltage and current terminals, correctly wired, can reduce the impact of voltage on line resistance. Package List：1 xElectronic Load Tester1 x Connecting Cable1 x Nut1 x WasherNote:1. Note:A. Be sure to pay attention to polarity when connecting to the target power supply. B. To reduce the influence of line resistance on the displayed voltage, two wires should be led from two output points + and ‑ to discharge the power supply. C. The power supply voltage should not exceed 15V DC. 2. Fault Causes and Solution: A. No Display on Startup: Check the polarity of the incoming line potential, the incoming line phone position 12V DC is normal and not loose. B. Power on Only Displays 000 and 000: check whether the discharge power supply and wiring polarity are normal. C. Power on Only Displays The Voltage, Adjust The Potentiometer Without Current Discharge: check whether the wiring is in poor contact, and for A+, A‑, check whether the is blown.

• Real-Time Digital Monitoring: This electronic load tester features a clear digital display that simultaneously shows voltage and current during constant current discharge, allowing you to accurately track battery performance in real time. The heat- screen remains readable even during extended testing sessions, making it reliable for both quick checks and long-duration evaluations of your 12V lithium or lead- batteries.
• Precise Constant Current Discharge: Operating in single CC (constant current) mode with an adjustable 0–20A range, this battery capacity tester delivers stable, full-power output up to 250W. Whether you're verifying new cells or assessing aging batteries from power tools, solar setups, or EV conversions, the electronic load tester ensures consistent discharge performance with a maximum current error of just 0.7%.
• Versatile for Technicians and Hobbyists: Designed for engineers, DIY enthusiasts, and professionals alike, this electronic load tester works with 12V DC lithium and lead- batteries up to 15V. It’s perfect for evaluating battery health in renewable energy systems, electric vehicle projects, portable electronics, and workshop diagnostics where accurate discharge analysis is critical.
• Robust Aluminum Alloy Construction: Built with a durable aluminum alloy housing, industrial-grade large-tooth heatsink, and dual high-speed ball-bearing fans, this battery capacity tester efficiently dissipates heat during heavy loads. Premium components like standard infrared power tubes enhance stability and longevity, ensuring reliable operation even under continuous 250W discharge conditions.
• Complete Ready-to-Use Testing Kit: The package includes 1 electronic load tester, 1 connecting cable, 1 nut, and 1 washer for immediate setup. Separate voltage and current terminals minimize line resistance errors, delivering accurate readings—just connect following polarity guidelines. Always ensure correct wiring to the + and – terminals for optimal performance and safety.