Fafeicy Electronic Load Battery Tester, 185W 20A USB Adjustable Constant Current Discharge Tester Module for Capacity Testing

["Wide Compatibility: Tests Li-ion, DC power supplies, and USB charging cables with adjustable current (0-20A) and overload protection.","Smart Cooling System: Built-in intelligent fan ensures efficient heat dissipation while maintaining quiet operation during prolonged use.","User-Friendly Interface: Features a clear green backlight LCD with bilingual (Chinese/English) display for easy monitoring of real-time data.","Portable and Versatile: Compact design (6.1 x 3.7 x 2.2 inches) with USB and multiple jack interfaces for lab, hobbyist, or fieldwork applications.","Precise Battery Testing: Measures capacity, power, and impedance with high-resolution LCD display for accurate readings."]