DALY Smart BMS LiFePo4 4S 12V 250A User Manual

1. Introducción

The DALY Smart BMS (Battery Management System) is designed for LiFePo4 4S 12V battery packs, offering comprehensive protection and monitoring capabilities. This programmable BMS features a Bluetooth module for wireless communication with Android or iPhone applications, allowing users to manage and monitor battery status in real-time. It supports both charging and discharging through a common port, ensuring efficient and safe battery operation.

This manual provides detailed instructions for the proper installation, operation, and maintenance of your DALY Smart BMS to ensure optimal performance and longevity of your battery system.

Figure 1: DALY Smart BMS with Bluetooth Module and App Interface

2. Características principales

• Alta capacidad de corriente: Supports up to 250A continuous discharge and 125A charge current, suitable for demanding applications.
• Programmable Protections: Features adjustable over-charge, over-discharge, over-current, and temperature protection limits.
• Conectividad Bluetooth: Integrated Bluetooth module for real-time monitoring and parameter settings via mobile app (iOS & Android).
• Diseño de puerto común: Utilizes a single port for both charging and discharging, simplifying wiring.
• Accurate SOC Calculation: Precise State of Charge (SOC) calculation with automatic learning function.
• VolumentagEquilibrio electrónico: High detection precision for voltage balancing across cells.
• Protección de carga a baja temperatura: Protects the battery from charging at temperatures below -1°C.
• Funciones de protección integral: Incluye protección contra sobrevol.tage, short-circuit, and dust.

Figure 2: DALY Smart BMS Protection Functions

3. Contenido del paquete

Verifique que todos los elementos estén presentes en el paquete antes de continuar con la instalación:

• DALY Smart BMS (1 unit)
• Cables de equilibrio (1 juego)
• Bluetooth Module (1 unit, for Mobile APP IOS & Android)
• UART Cable (1 unit, for PC screen connection)
• English Version Wiring Manual (1 copy)

Figure 3: DALY Smart BMS Package Contents

4. Producto terminadoview

The DALY Smart BMS features a robust design with efficient heat dissipation and a clear interface for connections. Understanding its components is crucial for proper installation and operation.

Figura 4: Explosión View of DALY Smart BMS Components

Los componentes clave incluyen:

• Disipadores de calor: Two-wheels style and wave style heatsinks for effective thermal management.
• High Current Board: Designed with a 3mm thick pure copper port for high current applications.
• DALY BMS PCBA: The main printed circuit board assembly.
• Thermally Conductive Silica Gel: Enhances heat transfer.
• Pure Aluminum Heatsink: Additional heatsink for optimal cooling.

5. Configuración e instalación

Proper installation is critical for the safe and effective operation of your DALY Smart BMS. Please follow these steps carefully.

5.1 Instrucciones de cableado

1. Before connecting the BMS, ensure all balance wires are correctly welded to your battery pack.
2. Medir el voltage between adjacent balance cables. This should approximate the nominal voltage of a single battery string to confirm correct wiring.
3. Connect the balance wires to the BMS balance port. Ensure the black wire (B-) is connected first, followed by the red balance wires in ascending order.
4. Connect the main negative terminal of the battery pack (B-) to the B- terminal on the BMS.
5. Connect the main positive terminal of the battery pack (B+) to the P+ terminal on the BMS.
6. Connect your load/charger to the P- terminal on the BMS and the B+ terminal of the battery pack.
7. Plug in the NTC temperature sensor and the Bluetooth module into their respective ports on the BMS.

Figure 5: DALY Smart BMS Wiring Diagram

5.2 BMS Activation

After all connections are made, activate the Smart BMS by pressing the activation button on the BMS or by charging the battery pack. The internal resistance of the BMS should be approximately 0Ω (multimeter deviation 0.1Ω indicates conduction).

5.3 Instalación de la aplicación móvil

Download the "Smart BMS" application from your device's app store (Huawei AppGallery or Apple App Store). This app allows you to monitor and configure your BMS wirelessly via Bluetooth.

6. Operación

Once installed and activated, you can operate and monitor your DALY Smart BMS using the mobile application or PC software.

6.1 Bluetooth Connection and Monitoring

1. Open the "Smart BMS" app on your mobile device.
2. The app will scan for available Bluetooth devices. Select the corresponding device name (e.g., DL-XXXXXXXX) to connect.
3. Upon successful connection, the app will display real-time battery parameters such as total voltage, corriente, estado de carga (SOC) y volumen de celda individualtages.

Figure 6: Real-time Battery Data Monitoring via Mobile App

6.2 Configuración de parámetros

The Smart BMS app allows you to customize various protection parameters. For the first power-on, it is essential to set the actual battery capacity. The initial password for parameter settings is 123456.

You can adjust settings such as:

• sobrevoltaje celulartage y subvoltagLímites de protección.
• Total pack over-voltage y subvoltagLímites de protección.
• Charge and discharge over-current protection.
• High and low temperature protection for charging and discharging.
• Battery type (e.g., Li-ion, LiFePo4) and rated capacity.

Refer to the app interface for a complete list of adjustable parameters. Always consult your battery manufacturer's specifications before modifying any parameters.

6.3 Calibración automática

The BMS features an automatic calibration function. If the battery is charged until the voltage reaches a high level 2 alarm, the battery parameters will be automatically calibrated.

6.4 PC Host Computer Software

For advanced monitoring and configuration, connect the BMS to a computer using the provided UART cable. Open the host computer software to view detailed battery status, logs, and adjust parameters. The PC software provides a comprehensive interface for in-depth analysis and control.

7. Especificaciones

The following table outlines the technical specifications for the DALY Smart BMS LiFePo4 4S 12V 250A model:

Figure 7: DALY Smart BMS Specifications and Dimensions

8. Solución de problemas

Si encuentra problemas con su DALY Smart BMS, tenga en cuenta los siguientes pasos generales de solución de problemas:

• Sin potencia/Sin salida: Check all wiring connections for looseness or incorrect polarity. Ensure the BMS has been properly activated. Verify the battery pack voltage está dentro del rango operativo.
• Problemas de conexión Bluetooth: Ensure the Bluetooth module is securely connected to the BMS. Restart the mobile app and your device's Bluetooth. Confirm the BMS is powered on.
• Lecturas incorrectas: Double-check balance wire connections and ensure they are properly seated. If using the app, refresh the data.
• Over-Protection Triggered: If the BMS frequently triggers over-charge, over-discharge, or over-current protection, review your battery pack's specifications and adjust the BMS parameters accordingly. Ensure your load and charger are within the BMS's rated limits.
• Alarmas de temperatura: Verify the NTC temperature sensor is correctly installed and in contact with the battery cells. Ensure the battery is operating within its safe temperature range.

For persistent issues, refer to the detailed wiring manual included in your package or contact DALY customer support.

9. Mantenimiento

Para garantizar la longevidad y el rendimiento óptimo de su DALY Smart BMS y paquete de baterías, siga estas pautas de mantenimiento:

• Inspección regular: Periodically inspect all wiring connections for signs of wear, corrosion, or looseness. Ensure the BMS is securely mounted.
• Limpieza: Keep the BMS free from dust, dirt, and moisture. Use a dry, soft cloth for cleaning. Avoid using solvents or abrasive cleaners.
• Gestión de la temperatura: Ensure the BMS and battery pack are operated within their specified temperature ranges. Adequate ventilation is crucial to prevent overheating.
• Actualizaciones de software: Check for periodic updates to the Smart BMS mobile application or PC software to benefit from new features and bug fixes.
• Parámetro Review: De vez en cuando review your BMS parameters to ensure they are still appropriate for your battery pack's condition and usage patterns.

10. Garantía y soporte

DALY products are manufactured to high-quality standards. For warranty information, please refer to the documentation provided with your purchase or contact your retailer. Keep your proof of purchase for warranty claims.

For technical support, assistance with installation, or troubleshooting, please contact DALY customer service through their official website or the contact information provided in your product packaging. When contacting support, please have your product model number and purchase details ready.