1. Introduction
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of the DALY Smart Battery Management System (BMS) for Li-ion 3S 12V 100A battery packs. The DALY Smart BMS is designed to protect and manage lithium batteries, ensuring their safe and efficient operation. It features a programmable Bluetooth module for monitoring and parameter adjustment via a mobile application.
2. Consignes de sécurité
Working with lithium batteries and Battery Management Systems requires careful attention to safety. Failure to follow these instructions can result in serious injury, property damage, or damage to the BMS and battery pack.
- Installation professionnelle recommandée : Installation should be performed by qualified personnel with experience in battery systems and electrical wiring.
- Risque électrique : Battery packs can store significant energy. Always disconnect the battery pack from any loads or chargers before working on the BMS.
- Prévention des courts-circuits : Ensure all wiring is correctly insulated and connections are secure to prevent short circuits.
- Polarité correcte : Double-check all positive and negative connections before applying power. Incorrect polarity can severely damage the BMS and battery.
- Ventilation: Ensure adequate ventilation around the battery pack and BMS, especially for models with cooling fans.
- Température: Operate the BMS and battery within specified temperature ranges. Avoid extreme heat or cold.
- Eau et humidité : Keep the BMS and battery away from water and high humidity to prevent electrical hazards and damage.
3. caractéristiques du produit
The DALY Smart BMS offers advanced features for comprehensive battery management:
- Support de courant élevé : Supports up to 100A continuous discharge and 50A charge current, suitable for demanding applications.
- Programmable Protection: Features programmable temperature, over-charge, over-discharge, and over-current protection limits.
- Voltage Équilibrage : Comprend voltage balancing to maintain cell health and extend battery lifespan.
- Connectivité Bluetooth : Integrated Bluetooth module for wireless monitoring and parameter adjustment via iOS and Android mobile applications.
- SOC Calculation: Precise State of Charge (SOC) calculation with automatic learning function.
- Conception de port commune : Utilise un port commun pour la charge et la décharge.
- Ventilateur de refroidissement : Equipped with a cooling fan for enhanced thermal management during high current operation.
4. Produit terminéview
The DALY Smart BMS is a compact and robust unit designed for efficient battery management.
Figure 1: DALY Smart BMS with labeled functional interfaces including NTC, UART, Bluetooth, CAN/RS485, Key switch, and Soft switch.
Figure 2 : Plusview of the 12 protection functions integrated into the DALY Smart BMS, including over-charge, over-discharge, over-current, short-circuit, over-voltage, balance function, NTC temperature protection, waterproof, moistureproof, fireproof, and dustproof features.
Figure 3 : Vue éclatée view detailing the internal structure of the DALY Smart BMS, highlighting components such as the two-wheel style heatsinks, wave style heatsink, high current board with thick copper port, BMS PCBA, thermally conductive silica gel, and pure aluminum heatsink.
5. Contenu du colis
Vérifiez que tous les éléments sont présents dans le colis :
- Smart BMS Unit (1)
- Balance Wires (1 set)
- Bluetooth Module (1)
- UART Cable (for PC connection) (1)
- English Version Wiring Manual (1)
Figure 4: Typical package contents for the DALY Smart BMS.
6. Installation et câblage
Proper wiring is critical for the safe and correct operation of the BMS. Refer to the wiring diagram and follow these steps carefully.
Outils requis :
- Soldering machine (recommended 662 °F/350°C)
- Ciseaux
- Ruban adhésif double face
- Tin wire
- Multimètre
Étapes de câblage :
- Préparer le bloc-batterie : Ensure your Li-ion 3S 12V battery pack is assembled and cells are balanced.
- Connectez les fils d'équilibrage : Carefully connect the balance wires to each cell in the correct sequence, starting from the negative terminal (B-) of the first cell.
- Connect Main Power Wires: Connect the main negative (B-) and positive (P+) wires from the battery pack to the corresponding terminals on the BMS.
- Connecter la charge/le chargeur : Connect your load and charger to the common port (P-) of the BMS.
- Connect BMS Balance Port: IMPORTANT: Before connecting the balance wires to the BMS connection port, ensure the white end of the balance wires is disconnected from the BMS. Only after all black and red main wires are welded to the battery pack, connect the balance wires to the BMS port.
- Activer le BMS : Plug in the NTC temperature sensor and Bluetooth module. Press the button on the Bluetooth module to activate the Smart BMS.
- Vérifiez les connexions : Utilisez un multimètre pour mesurer le volumetage between adjacent balance cables. This voltage should be approximately the nominal voltage of a single cell string.
Note: Keep the BMS red cooling surface side uncovered to ensure proper heat dissipation. Use DALY matching balance wires (regular length 450 mm / 17.72 inch).
Figure 5: Wiring diagram for connecting the DALY Smart BMS to a battery pack, motor, and charger. Ensure correct polarity and sequence for balance wires.
7. Operating Instructions (Bluetooth App & PC Software)
The DALY Smart BMS can be monitored and configured using a mobile application or PC software via Bluetooth or UART connection.
7.1 Mobile App Setup and Usage:
- Téléchargez l'application: Rechercher "Smart BMS" in the Huawei App Store or Apple App Store and download the application.
- Se connecter au BMS : Open the Smart BMS APP and connect to the corresponding Bluetooth device name (e.g., DL-XXXXXXXX).
- Configuration initiale : For the first power-on, the battery capacity must be set to the actual capacity of your battery pack. The initial password for parameter settings is 123456. Failure to set the correct capacity will result in inaccurate SOC readings.
- Paramètres du moniteur : The app displays real-time battery parameters such as total voltage, courant, volume de cellule individuelletages, temperature, and SOC.
- Ajuster les paramètres : Navigate to the "Parameter Settings" section to adjust protection thresholds for over-charge, over-discharge, over-current, and temperature.
- Calibrage automatique : The BMS automatically calibrates when the battery is charged until the voltage reaches a high level 2 alarm.
Figure 6: Smart BMS mobile application interface for monitoring battery data and adjusting parameters.
7.2 PC Software Usage:
Connect the BMS to a computer using the provided UART cable. Open the host computer software to view detailed battery status and configure advanced parameters. The PC software provides a comprehensive interface for data logging and fine-tuning BMS settings.
7.3 Instructional Video:
Video 1: An official DALY video demonstrating the connection process and basic operation of the Smart BMS with the mobile application, including viewing battery parameters and initial setup.
8. Entretien
Regular maintenance helps ensure the longevity and optimal performance of your DALY Smart BMS and battery pack.
- Suivi régulier : Periodically check battery parameters via the mobile app or PC software to identify any anomalies early.
- Propreté: Keep the BMS unit clean and free from dust and debris, especially around the cooling fan and heatsinks, to ensure efficient heat dissipation.
- Intégrité de la connexion : Periodically inspect all wiring connections for tightness and corrosion. Loose connections can lead to resistance, heat buildup, and performance issues.
- Mises à jour du micrologiciel : Check the DALY website or app for any available firmware updates for your BMS model.
9. Dépannage
This section addresses common issues you might encounter with your DALY Smart BMS.
| Problème | Cause possible | Solution |
|---|---|---|
| BMS not activating / no power output | Bluetooth module button not pressed; incorrect wiring; battery voltage trop bas. | Press the button on the Bluetooth module. Verify all wiring connections, especially B- and P+. Check battery voltage; if too low, charge the battery. |
| L'application Bluetooth ne se connecte pas | Bluetooth module not activated; out of range; app issues. | Ensure the Bluetooth module button is pressed. Move closer to the BMS. Restart the app or phone. Check app permissions. |
| Inaccurate SOC reading | Incorrect battery capacity set in app; BMS not calibrated. | Set the correct battery capacity in the app (initial password: 123456). Fully charge the battery to allow the BMS to calibrate. |
| BMS shuts down randomly | Protection triggered (over-current, over-voltage, sous-voltage, temperature); loose connection. | Check app for fault messages. Identify and resolve the cause of the protection trigger. Inspect all connections. Reset the BMS by disconnecting and reconnecting the main power. |
| Les cellules ne s'équilibrent pas efficacement. | Significant cell mismatch; low balance current. | Ensure cells are closely matched before assembly. Allow sufficient time for balancing, especially during charging. For severe imbalances, external balancing may be required. |
10. Spécifications
Key technical specifications for the DALY Smart BMS Li-ion 3S 12V 100A:
- Dimensions du produit : 7.24 x 2.56 x 1.3 pouces
- Poids de l'article : 1.5 livres
- Marque: QUOTIDIEN
- Technologie de connectivité: Bluetooth
- Source d'alimentation : Alimenté par batterie
- Norme de communication sans fil : Bluetooth
- Appareils compatibles : Téléphones portables
- Courant de décharge : Up to 100A continuous
- Courant de charge : Up to 50A continuous
- Over-discharge Current: 150A ± 15A (Can be set)
- Overcharge Current: 150A ± 15A (Can be set)
- Volume de surchargetage: 4.25V ± 0.05V (any string, can be set)
- Vol de décharge excessivetage: 2.7V ± 0.1V (any string, can be set)
- Vol de chargetage: 12.6V (Can be set)
Figure 7: Fan specifications and physical dimensions of the DALY Smart BMS.
11. Garantie et assistance
For warranty information, technical support, or assistance with your DALY Smart BMS, please contact the seller, DalyElec, directly through your purchase platform. Ensure you have your product model and purchase details available when contacting support.
