DAH Solar Home Energy Storage LiFePO4 Battery Pack Instruction Manual

1. Introduction

This manual provides essential information for the safe and efficient installation, operation, and maintenance of your DAH Solar 51.2V 200Ah Home Energy Storage LiFePO4 Battery Pack. This battery system is designed for residential energy storage, allowing you to store solar energy and power your home during outages or optimize energy consumption.

Please read this manual thoroughly before installation and operation, and keep it for future reference.

2. Safety Information

WARNING: Improper installation or operation can lead to serious injury or death. Only qualified personnel should install and service this battery system.

• Always wear appropriate personal protective equipment (PPE) including insulated gloves and eye protection when handling the battery.
• Do not attempt to open, disassemble, or modify the battery pack. There are no user-serviceable parts inside.
• Avoid short-circuiting the battery terminals.
• Ensure the installation area is well-ventilated and free from flammable materials.
• Keep the battery away from direct sunlight, heat sources, and water.
• In case of fire, use a Class D fire extinguisher. Do not use water.
• Handle with care due to the weight of the unit (approximately 80kg).

3. Product Overview

The DAH Solar LiFePO4 Battery Pack is a high-performance energy storage solution featuring advanced lithium-ion technology. It is designed for long life, safety, and superior performance in residential applications.

3.1 Key Characteristics

• Long Life, Safety: Cycle life of more than 6000 times, significantly outperforming lead-acid batteries.
• No Pollution: High energy density, small size, light weight, and environmentally friendly.
• Endurance without Worry: Stable operation in temperatures from -40°C to 65°C, with approximately 90% capacity retention at -20°C.
• Superior Performance: Supports 2C fast charge and fast discharge, with charging speed increased by 15% for optimal performance.

3.2 Dimensions

3.3 Components

The battery pack includes the main LiFePO4 battery unit, integrated Battery Management System (BMS Model: WML10240), and necessary connection terminals. The housing is made of sheet metal for durability.

4. Specifications

5. Setup and Installation

IMPORTANT: Installation must be performed by a certified electrician or qualified solar professional to ensure safety and compliance with local electrical codes.

5.1 Unpacking and Inspection

1. Carefully unpack the battery system.
2. Inspect the unit for any signs of physical damage during transit. Report any damage to the supplier immediately.
3. Verify that all components listed in the packing list are present.

5.2 Site Selection and Placement

1. Choose a location that is dry, well-ventilated, and protected from direct sunlight, rain, and extreme temperatures.
2. Ensure the ambient temperature for operation is within 0~55℃ for charging and -20~60℃ for discharging.
3. The surface must be stable and capable of supporting the battery's weight (80kg).
4. Allow adequate clearance around the unit for ventilation and maintenance.

5.3 Electrical Connection

The battery pack is designed to integrate with solar energy storage systems. Consult the specific wiring diagrams provided with your complete solar system for detailed connection instructions.

1. Ensure all power sources are disconnected before making any electrical connections.
2. Connect the battery terminals to your inverter/charge controller system, ensuring correct polarity (positive to positive, negative to negative).
3. Secure all connections tightly to prevent loose contacts and potential hazards.
4. The integrated BMS (WML10240) manages battery charging and discharging parameters. Ensure proper communication setup if required by your inverter system (485 communication).

5.4 Initial Charge

After installation, it is recommended to perform an initial full charge cycle according to your inverter/charge controller's instructions to calibrate the battery's State of Charge (SOC).

6. Operating Instructions

Once properly installed and connected to your solar energy system, the DAH Solar battery pack operates largely automatically, managed by its internal BMS and your external inverter/charge controller.

1. System Activation: Follow the activation procedure for your specific solar inverter system.
2. Charging: The battery will automatically charge when excess solar power is available, or from the grid if configured. The BMS ensures charging parameters (e.g., maximum charging voltage 58.4V, recommended current 200A) are adhered to.
3. Discharging: The battery will automatically discharge to power your home when solar generation is insufficient or during grid outages, based on your system's configuration. The maximum continuous discharge current is 200A.
4. Monitoring: Refer to your inverter's display or monitoring app for real-time information on battery SOC, voltage, current, and system status.

7. Maintenance

The DAH Solar LiFePO4 battery pack requires minimal maintenance, but regular checks ensure optimal performance and longevity.

1. Regular Inspection: Periodically inspect the battery pack for any visible damage, corrosion on terminals, or unusual odors.
2. Cleaning: Keep the battery surface clean and free of dust. Use a dry, soft cloth for cleaning. Do not use solvents or abrasive cleaners.
3. Connection Checks: Ensure all electrical connections remain tight and secure.
4. Long-Term Storage: If storing the battery for an extended period (e.g., more than 2 months), ensure it is stored at a temperature between -10~35℃ and has a State of Charge (SOC) of 60~80%. Replenish electricity every 2 months to maintain this SOC.

8. Troubleshooting

If you encounter issues with your DAH Solar battery pack, consider the following basic troubleshooting steps. For complex problems, contact qualified service personnel.

• Battery Not Charging:
  1. Check all electrical connections between the solar panels, charge controller, and battery.
  2. Verify that the solar panels are receiving adequate sunlight.
  3. Check the charge controller and inverter for any error codes or indicators.
• Battery Not Discharging/Providing Power:
  1. Check the inverter for error codes or fault indicators.
  2. Ensure the battery is sufficiently charged (check SOC).
  3. Verify all connections to the load are secure.
• Unusual Noises or Smells: Immediately disconnect the battery from all power sources and contact technical support.
• System Error Codes: Refer to your inverter/charge controller manual for specific error code interpretations.

If the problem persists after performing these checks, please contact DAH Solar technical support or your installer.

9. User Tips

No specific user tips were available from customer reviews or Q&A at the time of manual creation. Always follow the manufacturer's guidelines for optimal performance and safety.

10. Warranty and Support

The DAH Solar LiFePO4 Battery Pack is designed for durability and long-term performance, with a specified cycle life of >6000 recycle times (under conditions of 0.5℃ charge and 1℃ discharge).

For warranty claims, technical support, or service inquiries, please contact your point of purchase or the manufacturer directly. Ensure you have your product model and serial number available when contacting support.