35W Adjustable USB Electronic Load Tester with Constant Current, Battery Voltage Capacity Meter with LCD Display for Accurate Testing

Enhance your battery and USB cable testing accuracy with this versatile electronic load tester, designed to simulate electrical loads for precise measurement and evaluation. Equipped with dual adjustment knobs—a coarse knob for rapid current setting and a fine knob for precise tuning—this device enables quick and accurate control of discharge current. The reversible USB input port allows easy, hassle-free connection without worrying about orientation. Constructed with a high-grade aluminum heat sink, this tester offers superior heat dissipation to maintain optimal operating temperatures. It features a smart cooling fan that automatically activates at temperatures above 55°C and shuts off below 45°C, ensuring reliable performance and extended device durability. The compact device includes a clear LCD display that provides real-time monitoring of voltage, current, and capacity, making it easy to track testing parameters at a glance. Key Features: · Dual Adjustment Knobs: Coarse knob for 0-3A quick current setting and fine knob for +/-0.2A precise current adjustment, allowing for accurate discharge current control from 0.1A up to 4.5A. · Reversible USB Input Port: Designed for user convenience, enabling easy plug-in from any orientation without concern for up or down positioning. · High-Performance Aluminum Heat Sink: Provides efficient heat dissipation to maintain stable operation during extended testing periods. · Automatic Cooling Fan: Operates at 2900rpm, activating above 55°C and stopping below 45°C to prevent overheating and ensure longevity. · LCD Display: Clear and compact screen displays voltage, current, and capacity values for effective monitoring during tests. Specifications: · Voltage Range: 4-30V DC · Test Current Range: 0.1-4.5A (adjustable) · Operation Temperature: -10°C to 65°C · Device Dimensions: 105 x 55 x 43mm (4.13 x 2.16 x 1.69 inches) · Heat Sink Dimensions: 40 x 40 x 10mm (1.57 x 1.57 x 0.39 inches) · Constant Rated Discharge Power: 35W (recommended current ≤1.6A at 21V) · Current Accuracy: Less than 2% + 3mA Package Includes: · 1 x Electronic Load Tester This electronic load tester is an essential tool for professionals and hobbyists who require reliable testing and evaluation of batteries, power banks, and USB cables. Its precise current control, effective cooling system, and user-friendly design make it ideal for various testing environments, ensuring accurate and safe performance every time.