DALY 48V 300A 1A Active Balance Battery Management System User Manual

1. Introduction

The DALY 1A Active Balance Battery Management System (BMS) is designed for 16S 48V 300A LiFePO4 battery packs. This system integrates advanced battery protection with an active balancer, all controllable via a dedicated mobile application. It ensures the safety and extends the lifespan of your battery by managing cell balancing, voltage cutoffs, short-circuit protection, and temperature monitoring. Its compact design and robust construction make it suitable for various demanding applications.

2. Consignes de sécurité

• Always ensure correct wiring polarity. Incorrect connections can damage the BMS and battery.
• Do not attempt to disassemble or modify the BMS.
• Install the BMS in a well-ventilated area, away from flammable materials.
• Ensure all connections are secure to prevent loose contacts and potential hazards.
• Refer to the detailed wiring diagram provided in the manual for proper installation.
• In case of any malfunction, disconnect the battery immediately and consult a qualified technician.

3. Liste de colisage

Vérifiez que tous les éléments sont présents dans le colis :

• Smart Active Balance BMS (16S 48V 300A) x 1
• Sampling Cable x 1
• P-&B-&B+ Cable x 1
• NTC (Temperature Sensor) x 1
• Manuel d'utilisation x 1
• Vis (pour le montage)
• Boîte d'emballage

Figure 3.1: Contents of the DALY BMS package. The image displays the main BMS unit, a set of P-&B-&B+ cables, a sampling cable, an NTC temperature sensor, mounting screws, and a manual card, all neatly arranged next to the product packaging box.

4. caractéristiques du produit

• Enhanced Battery Safety: Provides comprehensive protection including cell balancing, low voltage coupure, vol élevétage cutoff, short-circuit protection, and temperature protection.
• Active Balance Function: Features 1A active balancing current with FLYBACK technology for DC balance, extending battery life by maintaining cell voltage cohérence.
• Extra Protection Features: Includes pre-charge protection, wrong connection or missing wire detection, parallel connection current limiting, and continuous cell balancing.
• Taille compacte : Designed for tight applications, maximizing battery space with built-in Bluetooth and low power consumption.
• Easy Connection & Monitoring: Manage your battery via an Android or iOS mobile app using Bluetooth connectivity. Monitor battery status, adjust settings, and control charge/discharge processes.
• Construction robuste : Adopts an injection molding sealing process for dustproof, shockproof, waterproof, and anti-accumulation protection.
• Parallel System Support: Supports multiple parallel systems for increased capacity and power.

Figure 4.1: Illustration of 1A Active Balance Current. The image shows a conceptual diagram of battery cells with varying voltages before balancing (e.g., 3.99V, 3.75V, 3.67V, 3.64V, 3.91V, 3.78V) and after balancing (all cells at 3.85V), demonstrating how the 1A peak current and FLYBACK technology achieve DC balance over 24 hours.

Figure 4.2: Compact Size and Integrated Bluetooth. This image depicts the DALY BMS unit, emphasizing its small form factor and the absence of a separate Bluetooth module. It highlights features like built-in Bluetooth, low power consumption, and no UART occupation, indicating efficient space utilization.

5. Spécifications

Protection Specifications:

• Single cell over-charging voltage protection (second level): 3.75V ± 0.05V
• Single cell over-charging voltage protection recover (second level): 3.65V ± 0.05V
• Volume totaltage over-charging protection (second level): 59.2V
• Volume totaltage over-charging protection recover (second level): 57.6V
• Single cell over-discharging voltage protection (second level): 2.2V ± 0.05V
• Short circuit protection conditions: External load short circuit

Figure 5.1: Product Parameters and Dimensions. The image displays different DALY BMS models (4-24S Auto identify, 4-24S 40-100A, 4-24S 250-500A) with their respective physical dimensions. A table below provides detailed specifications such as cell sampvol.lingtage range, active balance current, working power consumption, temperature protection, and communication port support.

6. Configuration et installation

Proper installation is crucial for the safe and efficient operation of your DALY BMS. Always refer to the detailed wiring diagram provided with your product for specific connections.

Étapes générales d'installation :

1. Préparer le bloc-batterie : Ensure your 16S LiFePO4 battery pack is assembled correctly and all individual cells are within a healthy voltage gamme.
2. Connect B- Cable: Connect the main negative terminal (B-) of the battery pack to the B- port on the BMS.
3. Connect P- Cable: Connect the main negative output terminal (P-) for the load/charger to the P- port on the BMS.
4. Connect B+ Cable: Connect the main positive terminal (B+) of the battery pack to the B+ port on the BMS.
5. Connecter Sampling Cables: Carefully connect the individual cell voltagframpling wires from your battery pack to the corresponding ports on the BMS. Ensure each wire is connected to the correct cell voltage tap, starting from B0 (negative) up to B16 (positive). Incorrect connection of sampling wires can lead to BMS malfunction or damage.
6. Connect NTC (Temperature Sensor): Attach the NTC temperature sensor to a central location on your battery pack to monitor its temperature effectively.
7. Vérifiez les connexions : Double-check all connections for correctness and security before applying power.

Note: For parallel systems, ensure proper current limiting and follow specific guidelines for connecting multiple BMS units.

7. Mode d'emploi

Connexion à l'application Bluetooth :

1. Téléchargez l'application : Rechercher the 'DALY BMS' app on your Android or iOS device's app store.
2. Activer Bluetooth : Assurez-vous que Bluetooth est activé sur votre appareil mobile.
3. Power On BMS: Once the BMS is correctly installed and connected to the battery, it will power on automatically.
4. Se connecter au BMS : Open the DALY BMS app. The app should automatically detect nearby DALY BMS devices. Select your BMS from the list to connect.
5. Surveiller et contrôler : Once connected, you can monitor real-time battery status, individual cell voltages, temperature, charge/discharge current, and adjust various protection parameters as needed.

État du voyant :

• Feu vert: Indicates the BMS is operating normally.
• Feu rouge : Indicates an alarm or protection event has been triggered. Check the app for details on the specific protection activated.

8. Entretien

• Suivi régulier : Periodically check the battery status via the mobile app to ensure optimal performance and identify any potential issues early.
• Propreté: Keep the BMS unit clean and free from dust and debris. The injection molding sealing provides protection, but excessive dirt can hinder heat dissipation.
• Vérifications de connexion : Annually inspect all wiring connections to ensure they remain tight and free from corrosion.
• Mises à jour du micrologiciel : Check the DALY official website or app for any available firmware updates for your BMS model to ensure you have the latest features and bug fixes.

9. Dépannage

• Le système de gestion du bâtiment (BMS) ne s'allume pas : Verify all main power connections (B-, P-, B+) and ensure the battery pack has sufficient voltage. Check the sampling cable connections.
• Voyant rouge : This indicates a protection event. Connect to the mobile app to identify the specific protection (e.g., over-voltage, sous-voltage, over-current, over-temperature, short circuit). Address the root cause before resuming operation.
• Problèmes de connexion Bluetooth : Ensure Bluetooth is enabled on your device and the BMS is powered on. Try restarting the app or your device. Ensure no other devices are interfering with the Bluetooth signal.
• Volume celluletage Déséquilibre : The 1A active balance feature works continuously. If significant imbalance persists, check individual cell health and sampling wire connections.
• Aucune puissance de sortie : Check for short-circuit protection activation (red light). Ensure the load is within the BMS's current limits. Verify all connections to the load.

10. Application

The DALY 48V 300A 1A Active Balance BMS is suitable for a wide range of applications requiring robust battery management for 16S LiFePO4 battery packs:

• Voiturettes de golf
• Electric Vehicles (Low Speed Vehicles)
• Systèmes de stockage d'énergie solaire
• Home Solar & Power Walls
• Applications marines
• Fish Finders & Flashers
• Boating Electronics
• Maisons hors réseau
• Centrales électriques portables
• RV Storage & Accessories
• Moteurs de pêche à la traîne

Figure 10.1: Diverse Applications of DALY BMS. The image illustrates the versatility of the DALY BMS, showcasing its use in E-Bikes, E-Trikes, Golf Carts, and RV energy storage systems, indicating its broad applicability across various electric and power storage solutions.

11. Garantie et assistance

This DALY BMS product comes with a Garantie prolongée de 5 ans.

For technical support, warranty claims, or further inquiries, please contact DALY customer service through their official channels or the retailer from whom the product was purchased. Refer to the contact information provided in the packaging or on the official DALY website.