2S 20A BMS Charger 18650 Lithium Li-ion Battery Balance Protection Board

2S 20A BMS Charger (Battery Management System) is a crucial component in the efficient and safe operation of battery packs. Designed to monitor the status of batteries, control the process of charging/discharging the battery, and provide protection against various electrical faults, the BMS plays a vital role in ensuring the longevity and reliability of battery systems. The HX-2S-D20 charge-discharge controller module, offered by Dhaka Robotics, is a versatile solution for managing two 18650 batteries simultaneously. Equipped with protection against short circuit, overcharge, and over-discharge, this module offers a reliable and safe platform for battery management. Its compact design and robust features make it suitable for a wide range of applications.

One of the key functions of the HX-2S-D20 charge-discharge controller module is to regulate the power supply for the batteries, ensuring that the maximum capacity of at least one battery is not exceeded. This not only safeguards the batteries from potential damage but also contributes to overall system efficiency. With a design life of more than 30,000 hours, this BMS controller promises long-term performance and reliability. The module features five pins, each serving a specific purpose in the battery management process. The B+ and B- pins correspond to the battery positive and negative poles, while the BM pin represents the mid-point of a battery assembly. The P- and P+ pins are dedicated to the negative charge/discharge terminal and positive charge/discharge terminal, respectively, enabling seamless integration with external circuitry.

In the event of the supply voltage exceeding the maximum permissible value, the charge controller activates the “protection” mode to prevent potential damage to the batteries. To restore the module, it is necessary to re-apply voltage to the input of the BMS board or wait for the charge controller to automatically disable protection. This built-in safety feature enhances the overall reliability of the battery management system.

This module has 5 pins:

B+  : Battery positive pole
B-   : Battery negative pole
BM : Mid-point of a battery assembly
P-   : Negative charge / discharge terminal
P+  : Positive charge/discharge terminal

Power is supplied to the module from an external power source within a voltage range of 7.4 to 8.4 V. While the module is not a charger in itself, it can be used in conjunction with a step-up voltage converter with a current limiter for charging applications. This flexibility allows for seamless integration into various charging setups, providing users with a versatile and adaptable solution for their battery management needs. The compact size of the module is specifically designed to accommodate a four-cell battery pack, making it an ideal choice for applications where space is at a premium. It’s simple and convenient circuit design facilitates easy connections, reducing installation time and complexity. The inclusion of over-charge and over-discharge protection further enhances the safety and reliability of the battery management system, ensuring peace of mind for users. It is important to note that product images are shown for illustrative purposes only and may differ from the actual product. Customers are advised to refer to the product specifications and documentation for accurate information regarding the module’s features and capabilities.

In conclusion, the HX-2S-D20 charge-discharge controller module offered by Dhaka Robotics presents a comprehensive solution for managing two 18650 batteries with efficiency and reliability. With its robust features, compact design, and built-in safety mechanisms, this BMS module is well-suited for a wide range of applications, providing users with a versatile platform for effective battery management.