Battery Protection Board Product Overview The Battery Protection Board provides essential safety features for your lithium-ion batteries, ensuring long-lasting performance and reliability. If you require customized services, please consult our customer service for details. Specifications Charge Voltage: Li-ion (N strings) × 4.2V Discharge Current (A): Options available from 15A to 500A Charge Current (A): Options available from 8A to 250A Overcurrent Protection: Discharge: Options range from 50 ±10A to 1000 ±200A Charge Overcurrent: Options range from 20 ±5A to 400 ±100A Detect Voltage: Li-ion 4.25±0.05V Protection Delay: 1 second Operating Temperatures: Charge: -20°C to 55°C Discharge: -40°C to 70°C (Customizable) Storage: -40°C to 85°C Package Includes 1 x Battery Protection Board 1 x Cable 1 x Temperature Control The appearance and weight of products may vary based on current ratings. Please refer to the product received for details. Thank you for your understanding. Connection Instructions Note: Different manufacturers may have varying wire standards. Ensure matching cables are used and pay attention to the B- and P- marks. When welding sampling wire cables, do not insert them into the BMS initially. Connect the cable starting from the total negative B-. The second wire (red) connects to the positive of the first battery string. Continue connecting each positive terminal sequentially until reaching the total positive B+. After connecting, measure voltage between adjacent metal terminals on the plug. Verify battery type and ensure correct voltage before proceeding. Connect the BMS B-line (blue thick line) to the total battery negative (B-line length should not exceed 40cm). Insert the wire cable into the BMS. Post-Connection Verification Check if the voltage between B+ and B- is equal to that of B+ and P-. If equal, the BMS is operational. If not, review the wiring sequence. Ensure the charging and discharging positive electrodes are connected to B+, and according to BMS type, connect the negative electrodes appropriately to P- or C-. If questions arise, contact customer service for assistance.
