Programmable DC Electronic Load 400W Dual Channel Battery Tester with USB RS232 Interface

Digital dual channel programmable DC electronic load tester designed for precise, repeatable testing in laboratory, R and D, and production environments. Key benefits precision and resolution for more reliable results: 1 mV voltage resolution and 1 mA current resolution provide finegrained measurement and control for sensitive devices. Flexible programmable loading: dual channel operation and multiple programmable modes let you simulate realistic load conditions for chargers, power supplies, batteries, and LEDs. Easier setup and safer operation: intuitive 2.8 inch TFT LCD with support for English and Chinese, key lock to prevent accidental changes, and a builtin buzzer for alerts. Remote control and data retention: RS232 and USB Device interfaces enable automated testing and remote operation, while poweroff memory preserves test data. Core functions and performance Multiple working modes: CC, CV, CR, CP, CC CV, and CR CV for standard electronic load behavior. Specialized test modes: dedicated battery test and LED test routines, dynamic test mode for evaluating transient output performance, scanning test mode for measuring output continuity across a range, and list mode to simulate complex, timevarying load sequences. Short circuit test mode to simulate load faults and verify protection behavior. Far end measurement model to improve measurement accuracy at currents by compensating for voltage drop and distribution effects. speed, precision design based on a performance control chip for stable, repeatable results. Controls and interfaces 2.8 inch TFT LCD with rich display content and simple, intuitive menus. Key lock to prevent unintended operations during critical tests. External trigger input for synchronized measurements. RS232 and USB Device interfaces for remote control, data logging, and integration with automated test systems. PS2 interface supports an external keypad for fast numeric entry and improved test throughput. Builtin buzzer alarm and poweroff data save function for safer and more reliable testing. Applications and use scenarios Charger and power supply validation: Characterize DC output stability, transient response, and protection behavior of switching and linear power supplies under controlled programmable loads. Battery production and endofline testing: Perform repeatable battery discharge, charge profile emulation, and capacity scans on cells and battery packs during production and quality checks. R and D and component testing: Evaluate LED drivers, transient behavior of regulators, and power management circuits using dynamic, scan, and list modes to simulate realworld operating conditions. What it delivers Precise measurement and stable load control to reduce retest cycles and speed development and production verification. Multiple programmable modes and remote interfaces to fit into bench, automated, or production environments. Userfriendly display and controls to minimize setup time and operator errors. Suitable for engineers, test technicians, and research staff working with chargers, switching and linear power supplies, batteries, LEDs, and other DCpowered devices.