1. Introduction
The ANT BMS (Battery Management System) is an advanced solution designed for managing various lithium battery types, including Lifepo4 and Li-ion, across a wide range of configurations from 4S to 24S. This smart balance BMS offers robust protection features, real-time monitoring via Bluetooth APP and PC software, and ensures efficient and safe operation of your battery packs. It is suitable for power BMS, energy storage BMS, and 3C digital BMS applications.
2. Package Contents
Upon receiving your ANT BMS, please verify that all the following components are included:
- BMS Unit: 1x Smart Battery Management System with Bluetooth Built-in.
- Temperature Sensor: 1x 35cm temperature sensor cable.
- Battery Cable: 1x 70cm battery connection cable.
- Active Cable: 1x 40cm active balance cable.
3. Specifications
The ANT BMS offers a range of configurations and features. Below are the general specifications:
| Description | Specification | Unit |
|---|---|---|
| Continuous Charge Current | 40A, 50A, 60A, 80A, 110A, 120A, 130A, 170A, 180A, 220A, 230A, 240A, 340A, 380A | A |
| Continuous Discharge Current | 40A, 50A, 60A, 80A, 110A, 120A, 130A, 170A, 180A, 220A, 230A, 240A, 340A, 380A | A |
| Maximum Discharge Current (10s) | 100A, 125A, 150A, 200A, 275A, 300A, 325A, 425A, 450A, 550A, 575A, 600A, 850A, 950A | A |
| Charge voltage | LiFePO4: S*3.65V, Li-ion: S*4.2V, LTO: S*2.8V | V |
| Over Charge detect voltage | 1.2-4.35, Adjustable | V |
| Over Charge protection delay | 1 | S |
| Over Charge release voltage | 1.2-4.35, Adjustable | V |
| Balance detect voltage | 3.8 | V |
| Balance Current | 100 | mA |
| Balance Method | Passive Balance (Full State On) | |
| Single Cell Voltage Range | 0-5 | V |
| Voltage Acquisition Accuracy | Single Voltage: 0.001V, Total Voltage: 0.01V | V |
| Total voltage protection range | 0-100V, <0.5% FSR (FSR = full scale) | V |
| Over Discharge detect voltage | 1.2-4.35, Adjustable | V |
| Over Discharge protection delay | 1 | S |
| Over Discharge release voltage | 1.2-4.35, Adjustable | V |
| Short Circuit protection | YES | |
| Quantity of Temperature Detection | 2 | Pcs |
| Temperature Detection degree | -40~125 | °C |
| Temp range | -40~85 | °C |
| Wiring method | same port | |
| Coulomb counter | YES | |
| Bluetooth Function | Support for Android / iOS Phone |
Additional Properties:
- Certification: CE
- Balance Function: Passive Balanced BMS
- Hardware or Smart: SMART BMS
- Charge and Discharge Port: Common Port BMS
- Type: LI-ION Battery BMS
- Function: Overcharge Protection, Over Discharge Protection, Overcurrent Protection, Short Circuit Protection
4. Safety Information
WARNING: Improper installation or wiring can lead to severe damage to the BMS, battery, or personal injury. Always follow these instructions carefully.
- Reverse Polarity: It is strictly forbidden to reversely connect the B- and C- cables of the BMS. Ensure correct polarity at all times.
- Wiring Sequence: Wiring must start from B- to B+ and be connected in sequence. Do not confuse wiring.
- Voltage Verification: Always measure the voltage of each battery string with a multimeter to ensure the correct line sequence before connecting to the BMS.
- BMS Connection: Connect the B- terminal of the BMS to the total negative of the battery pack BEFORE plugging the sampling cable into the BMS. Failure to do so will burn the board.
- Professional Guidance: Please operate in strict accordance with this instruction manual and, if necessary, seek guidance from qualified customer service personnel when installing the BMS.
5. Setup and Installation
5.1 Wiring Instructions
Careful wiring is critical for the proper function and safety of your BMS. Follow these steps precisely:
- Ensure your battery pack is fully assembled and all individual cells are balanced.
- Connect the main negative terminal of your battery pack to the B- terminal on the BMS.
- Connect the main positive terminal of your battery pack to the P+ terminal (if applicable, or follow specific diagram for charge/discharge ports).
- Connect the C- terminal of the BMS to the negative terminal of your charger/load.
- Using a multimeter, verify the voltage of each cell and ensure the correct sequence of your balance wires (B1, B2, B3, etc.).
- Connect the balance wires from your battery pack to the corresponding ports on the BMS, starting from B- and proceeding sequentially to B+.
- Once all main power and balance wires are securely connected and verified, plug the sampling cable into the BMS.
5.2 App Installation
The ANT BMS features built-in Bluetooth for seamless connection to a mobile application, allowing for real-time monitoring and configuration.
- For iOS Devices: Search for "ANT BMS" in the Apple App Store and download the official application.
- For Android Devices: Search for "ANT BMS" in the Google Play Store and download the official application.
6. Operation
6.1 Real-time Monitoring
Once the BMS is correctly installed and powered, you can monitor its status and your battery pack's health in real-time using the mobile APP or optional PC software.
- Mobile APP: Connect via Bluetooth to view battery status, charging/discharging current, individual cell voltages, total voltage, temperature, and more. The app provides a visual and intuitive interface for comprehensive battery management.
- PC Software: For more detailed analysis and configuration, connect the BMS to a computer using a USB adapter (sold separately) and use the dedicated PC software.
6.2 Protection Features
The ANT BMS incorporates nine core technical protections to safeguard your battery and ensure longevity:
- Short Circuit Protection: Prevents damage from accidental short circuits.
- Overcharge Protection: Stops charging when cells reach their maximum safe voltage.
- Over-release Protection: Prevents over-discharging of cells.
- Low Voltage Automatic Shutdown Protection: Shuts down the system to prevent battery damage from low voltage.
- Balanced Protection: Actively balances cell voltages for optimal performance and lifespan.
- Dropped-off Protection: Detects and protects against disconnected cells.
- Overcurrent Protection: Limits current flow to prevent damage from excessive loads.
- Temperature Protection: Monitors battery temperature and takes action to prevent overheating or freezing.
- Alarm Prompt: Provides alerts for various fault conditions.
6.3 Optional Displays
For direct visual feedback, various LCD display options are available (sold separately) that can connect to the BMS:
- 2.8-inch Bluetooth LCD
- 2.4-inch LCD screen
- 3.9-inch segment code screen
- 4.3-inch display
7. Maintenance
To ensure the longevity and optimal performance of your ANT BMS and battery pack, consider the following maintenance guidelines:
- Environmental Conditions: Keep the BMS in a dry environment and avoid exposure to extreme temperatures or humidity.
- Regular Monitoring: Periodically check the battery status via the mobile APP to identify any anomalies early.
- Connection Integrity: Ensure all wiring connections remain secure and free from corrosion.
- Firmware Updates: Check for and apply any available firmware updates for the BMS to benefit from improved features and bug fixes.
8. Troubleshooting
If you encounter issues with your ANT BMS, consider the following common troubleshooting steps:
- BMS Not Powering On: Double-check all main power connections (B- to battery negative, P+ to battery positive) and ensure the sampling cable is correctly plugged in after all other connections.
- Protection Triggered: If the BMS enters a protection state (e.g., no charge/discharge), check the APP for specific fault codes or indicators. This could be due to:
- Overcharge/Over-discharge: Individual cell voltages are outside safe limits.
- Overcurrent: The load is drawing too much current.
- Short Circuit: An accidental short circuit has occurred.
- Temperature: Battery temperature is too high or too low.
- Inaccurate Readings: If voltage or current readings appear incorrect, verify all balance wire connections and ensure they are securely seated and in the correct sequence.
- Bluetooth Connectivity Issues: Ensure the BMS is powered on, Bluetooth is enabled on your mobile device, and you are within range. Try restarting the APP or your device.
If the BMS does not work or is damaged due to misoperation without following the instructions and customer service guidance, repair or replacement costs may apply.
9. User Tips
- Verify Wiring Meticulously: Before connecting the sampling cable, use a multimeter to verify the voltage of each battery string and ensure the balance wire sequence is absolutely correct. This is the most critical step to prevent damage.
- Seek Assistance: If you are unsure about any step during installation or operation, do not proceed. Contact customer service for guidance to avoid potential damage to the BMS or battery.
- Regular App Use: Utilize the mobile application regularly to monitor your battery's health. Early detection of issues can prevent more significant problems.
- Consider PC Software: For advanced users or complex setups, the PC software offers more in-depth analysis and configuration options. Remember the USB adapter is a separate purchase.
10. Warranty and Support
For any technical support, warranty claims, or inquiries regarding your ANT BMS, please contact the manufacturer or your point of purchase. Ensure you retain your purchase records for warranty purposes.
Customization Options: For bulk orders (starting at 100 pieces), customized RS485/CAN/Modbus interfaces or other specific requirements may be available. Please contact the manufacturer directly for more information on these options.
