Integrated Battery Charge/Discharge Control: This module combines charge and discharge management in one compact board, allowing precise control of battery charging and discharging processes for DIY power systems, energy storage projects, and lab testing. Built-in Digital Voltmeter: Equipped with an integrated voltmeter, the module provides real-time voltage monitoring without the need for additional instruments, helping you observe battery status and adjust parameters quickly and accurately. Undervoltage & Overvoltage Protection: Advanced protection circuits support adjustable undervoltage and overvoltage thresholds. When the battery voltage exceeds the preset upper limit or drops below the lower limit, the module automatically cuts off or restores output to protect the battery and connected devices. Programmable Timing Charge/Discharge: Supports timing functions for both charging and discharging. Users can set charge time, discharge time, and cycle modes to achieve automated test procedures, capacity tests, or periodic charge/discharge scenarios. Communication & Intelligent Control: The communication interface allows connection to external controllers or PCs (such as MCU or industrial controllers) for parameter configuration, status monitoring, and data logging, enabling more intelligent and automated battery management solutions. Color: As Shown Material: plastic Package Contents: 1*Charge and discharge module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.