1. Introduction
The JBD Bluetooth Smart BMS SP04S060 is a sophisticated software protection board designed specifically for 4-string lithium battery packs, supporting both 3.7V Li-ion and 3.2V LiFePO4 chemistries. It integrates a high-performance front-end acquisition chip from TI and an MCU from HUADA, allowing for flexible parameter adjustments via a host computer interface. This BMS offers robust protection and intelligent management for various high-power applications.
Video: Overview of the JBD Smart BMS SP04S060, highlighting its features like 4S support, 250A/300A working current, series connection, UART/RS485/CAN/Heat support, and internal Bluetooth with temperature sensor.
2. Product Features
- Smart Management: One-click automatic equalization for optimal cell balance.
- Robust Protection: Features integrated solution, overcharge, over-discharge, overcurrent, short circuit, and temperature protection.
- Advanced Cooling: Equipped with a "Glacier cooling system" including a new wave cooling system, V3.0 separation technology, three-level aluminum heat dissipation, CPU-thermal conductive silicone grease, and enhanced cooling function.
- High-Quality Components: Utilizes imported concave-convex chips, new TOLL package MOS for higher current and ultra-low internal resistance, Super power two-way TVS (5000W, anti-overload, anti-overvoltage, anti-overcurrent), and 8 high conductivity red copper bars for stable high current.
- Communication Interfaces: Supports Bluetooth (BT), UART, RS485, and CANBUS for real-time monitoring and parameter adjustment.
- Heating Function: Includes a heating function, allowing for the installation of a 12V heating film to maintain optimal battery temperature.
- Temperature Sensors: Features three temperature sensors (1 internal, 2 external) for comprehensive thermal monitoring.
- Expandability: Supports series connection for increased voltage applications.
Image: Diagram illustrating the multiple protection features and the advanced cooling system of the BMS.
Image: Detailed view of the high-quality components used in the BMS, such as temperature-resistant chips, TOLL package MOS, two-way TVS, and high conductivity copper bars.
3. Specifications
| Attribute | Value |
|---|---|
| Model Number | SP04S060 |
| Accessory Type | Battery Accessories |
| Brand Name | JBDBMS |
| Origin | Mainland China |
| Certification | CE, RoHS |
| Applicable Battery Type | 3.2V LiFePO4 / 3.7V Li-ion Battery |
| Size | 230mm x 110mm x 20mm |
| Number of Strings | 4S |
| Continuous Current | 300A |
| Peak Current | 900A (for 1s) |
| Voltage | 12V (nominal for 4S) |
| Balance Wires | Yes (included) |
| Balance Function | Common Port with Balance, Static Equalization |
| Bluetooth Function | Yes (free BT module included) |
| Communication Function | UART/RS485/CAN |
| Balance Current | 40-120mA |
| Heat Function | Yes (without heating film) |
| Temperature Sensor | 1pc internal, 2pcs external |
| Series Connection Support | Yes |
| Six Protection Functions | Yes |
| Application Field | Power Battery, E-Motorcycle, Electric Vehicle, Electric Car, Electric Ebike |
Protection Parameters
| Continuous Current | Charge/Discharge | Charge Over-current value | 1st Discharge Over-current value | 2nd Discharge Over-current value | Short circuit protection value | |
|---|---|---|---|---|---|---|
| Charge | Discharge | |||||
| 80A | 80A | 80A | 90±10A | 90±10A | 330±60A | 900±180A |
| 100A | 100A | 100A | 120±10A | 120±10A | 470±100A | 1000±200A |
| 250A | 250A | 250A | 270±10A | 270±10A | 880±150A | 1560±300A |
| 300A | 300A | 300A | 320±10A | 320±10A | 1300±200A | 1800±300A |
Table: Protection parameters for various continuous current ratings, including charge/discharge over-current and short circuit protection values.
Balance Function Parameters
| Balance Function | Value | Unit | |
|---|---|---|---|
| Balance Parameters | Balance function turn-on voltage | 3.27 / 3.30 / 3.33 | V |
| Difference opening voltage value | 15 | mV | |
| Balance current | 40-120 | mA | |
| Balance model | Idle equalization | ||
| Balance type | Pulsed model | ||
Table: Detailed parameters for the BMS's balance function, including voltage thresholds and current.
4. Setup and Installation
4.1 Wiring Diagram
Carefully follow the wiring diagram below for proper installation. Incorrect wiring can damage the BMS or battery pack. Ensure all connections are secure before powering on.
Image: A simple diagram illustrating the connection of the BMS to a 4S battery pack, charger, and discharge load. It shows the balance wire port, NTC, and communication ports (BT, UART, RS485, CAN).
Key Connections:
- B-: Connects to the battery's total negative electrode.
- C-: Connects the negative electrode of the charger and discharge negative electrode.
- Balance Wire Port: Start wiring from BC0 (total negative). BC1 connects the first positive pole, BC2 the second, BC3 the third, and the last one connects the total positive stage. Wire in sequence.
- NTC: Connect temperature sensors.
- BT: Connects to the Bluetooth module for app communication.
- UART/RS485/CAN: Connects to PC host computer or LCD displayer for communication.
4.2 Communication Module Setup
The BMS comes with a free Bluetooth module. For UART/RS485/CAN communication, additional accessories may be required and need to be purchased separately. Ensure the correct communication module is connected to the designated port on the BMS.
Image: Diagram showing the optional communication interfaces (RS485, UART, CAN) and the heating function connection points on the BMS. It also highlights the three temperature sensors.
5. Operation
5.1 Mobile App (xiaoxiangElectric)
The BMS supports monitoring and parameter adjustment via the "xiaoxiangElectric" mobile application, available for both iOS and Android. Download the app from http://www.jiabaida.com/appdown/index.html. The app allows you to view battery information, adjust settings (within specified ranges), monitor history, and control charge/discharge switches.
Image: Screenshots of the xiaoxiangElectric APP interface, showing battery status, voltage, current, temperature, and control options.
5.2 PC Host Computer (JBD PC Tool Box)
For advanced monitoring and parameter configuration, use the JBD PC Tool Box software. This tool allows you to read, modify, and save various parameters of the BMS. The PC Tool Software can be downloaded from https://jbdtools.oss-cn-beijing.aliyuncs.com/packfile/JBDTools.zip. A PC tool manual is also available upon request from customer service.
Image: Screenshot of the UART (PC) interface for parameter setting, showing options to read, modify, and save configurations.
5.3 LCD Displayer
An optional LCD displayer can be connected via UART/RS485 to monitor key battery parameters directly without a phone or PC. This accessory needs to be purchased separately.
6. Maintenance
- Regular Monitoring: Periodically check battery parameters via the mobile app or PC tool to ensure optimal performance and detect any anomalies early.
- Cell Balancing: The BMS features static equalization. Ensure the battery pack is within the recommended voltage range for effective balancing.
- Temperature Management: Utilize the heating function (if a heating film is installed) in cold environments to prevent winter capacity loss and maintain battery health.
- Firmware Updates: Check the manufacturer's website or contact customer service for any available firmware updates to ensure your BMS has the latest features and bug fixes.
7. Troubleshooting
- Communication Issues: Ensure the Bluetooth module is properly connected and within range. If using UART/RS485, verify cable connections and ensure only one communication method (UART or BT) is active at a time.
- Protection Triggered: If the BMS triggers a protection (e.g., overcharge, over-discharge, overcurrent), identify the cause using the app/PC tool's history logs. Address the underlying issue (e.g., reduce load, check charger settings) before resetting.
- Winter Capacity Loss: This can be mitigated by using the heating function. Ensure the heating film is correctly installed and functioning in cold conditions.
- Unusual Readings: If you observe abnormal voltage, current, or temperature readings, first verify sensor connections. If the issue persists, contact customer service.
8. User Tips
- Series Connection: This BMS supports series connection. When connecting multiple BMS units in series for higher voltage applications (e.g., two 12V BMS for 24V), ensure proper wiring and compatibility. Consult the wiring diagram and consider seeking professional advice for complex setups.
- Parameter Customization: Take advantage of the mobile app and PC tool to fine-tune protection parameters to match your specific battery pack and application requirements.
- Temperature Monitoring: Pay close attention to the temperature readings from the internal and external sensors, especially during high charge/discharge cycles or in extreme environmental conditions.
9. Warranty and Support
For detailed warranty information, technical support, or to obtain specific manuals (APP manual, Wiring Diagram, BMS Specification, PC Tool Software manual), please contact JBDBMS customer service directly. Ensure you have your product model number (SP04S060) ready when contacting support.
The product is certified with CE and RoHS standards, indicating compliance with health, safety, and environmental protection directives.
