1. Product Overview
The Dawnice DW-PF-BRSets-4P001 is a high-capacity 80KWH 48V LiFePO4 Power Wall Lithium Battery system designed for solar energy storage. This system utilizes Grade A cells, offering high safety, a long cycle life of 6000+ cycles, and robust charge/discharge capabilities. It features a built-in 150/200A Battery Management System (BMS) with RS485, RS232, and CAN communication interfaces for intelligent monitoring and control.
Figure 1: Dawnice 51.2V 410Ah LiFePO4 Battery highlighting 21kWh capacity, 6000+ cycles life, 10-year warranty, 15 units parallel capability, 200A BMS, and Grade A cells.
The system is designed for residential energy storage, supporting both single-phase and three-phase photovoltaic systems. It can be configured with various inverter capacities (5kW, 10kW, 12kW) and battery capacities (5kWh, 10kWh, 16kWh, 20kWh per unit). The modular design allows for expansion up to 15 units in parallel, providing significant scalability.
Figure 2: Detailed view of the 51.2V 410Ah LiFePO4 Battery, showing 200A BMS, 10.24 kW Max. Load Power, 20.99 kWh Max. Energy, and a weight of 392 lbs.
2. Safety Information
Read all safety instructions carefully before installation, operation, or maintenance. Failure to follow these instructions may result in electric shock, fire, serious injury, or death.
2.1 General Safety Precautions
- Only qualified personnel should install, operate, or service this equipment.
- Do not attempt to open, disassemble, or modify the battery unit. There are no user-serviceable parts inside.
- Keep the battery away from open flames, heat sources, and flammable materials.
- Ensure proper ventilation around the battery unit to prevent overheating.
- Do not immerse the battery in water or expose it to excessive moisture. The unit has an IP54 rating, protecting against dust and splashing water, but not immersion.
- Wear appropriate personal protective equipment (PPE), including insulated gloves and eye protection, during installation and maintenance.
- In case of fire, use a Class D fire extinguisher (for metal fires) or a CO2 extinguisher. Do not use water.
2.2 Electrical Safety
- Always disconnect all power sources (solar panels, grid, and battery) before performing any electrical work on the system.
- Verify voltage and current levels with a multimeter before touching any electrical components.
- Ensure all wiring connections are secure and correctly polarized. Incorrect wiring can damage the system and pose a fire hazard.
- Ground the battery system properly according to local electrical codes.
3. Setup and Installation
The Dawnice Power Wall battery is designed for wall-mounted or ground-mounted installation. Ensure the installation site is dry, well-ventilated, and protected from direct sunlight and extreme temperatures. The unit is equipped with Fuma wheels for easier positioning.
3.1 System Components and Connections
The residential energy storage system typically includes photovoltaic (PV) panels, an inverter, the Dawnice battery, a meter, and connection to the electrical grid and household loads.
Figure 3: Residential Energy Storage System diagram showing PV panels, inverter, battery, grid, and load connections.
3.2 Physical Installation
- Mounting: Choose between wall-mounted or ground-mounted installation. Use the provided mounting brackets and ensure the structure can support the battery's weight (approximately 198KG per unit).
- Clearance: Maintain adequate clearance around the unit for ventilation and access to ports.
- Environment: Install in an area with stable temperature and humidity, away from direct water exposure. The IP54 rating provides protection against splashing water, but not heavy rain or immersion.
3.3 Electrical Connections
Refer to the detailed port diagram for correct wiring. The battery features a signal communication panel and a battery power interface.
Figure 4: Product details showing battery switch, touch screen, handles, Fuma wheels, signal communication panel, and battery power interface with numbered ports.
- Battery Power Interface: Connect the positive (DC+) and negative (DC-) terminals to the inverter according to the inverter's manual.
- Signal Communication Panel: Use the RS485, RS232, and CAN ports for communication with the inverter and for monitoring.
- Parallel Connection: For multiple units, connect them in parallel using the designated battery parallel ports (8 and 9) and ensure proper communication setup. Up to 15 units can be connected in parallel.
- Grounding: Connect the system to a reliable ground source.
3.4 Initial Power-Up
- After all connections are secure, turn on the battery switch.
- Observe the LCD screen for initial status and any error messages.
- Follow the inverter's instructions for system commissioning.
4. Operating Instructions
The Dawnice Power Wall is designed for automated operation within a solar energy storage system. The intelligent BMS manages charging and discharging processes.
4.1 LCD Screen Monitoring
The large LCD screen provides real-time data on the battery's status:
- Voltage: Overall battery voltage.
- Current: Charge/discharge current.
- Temperature: Internal battery temperature.
- SOC (State of Charge): Remaining battery capacity.
- Cell Voltage: Individual cell voltages for detailed monitoring.
Figure 5: The Dawnice Power Wall unit displaying real-time information on its integrated LCD screen.
4.2 Communication Interfaces
The RS485 and CAN ports allow communication between the battery and the inverter, enabling coordinated system operation and data exchange. The RS232 port is typically used for local diagnostics or firmware updates.
4.3 Mobile Control
The system supports mobile control via Bluetooth, WiFi, and an app remote, allowing users to easily view current data and manage the system remotely.
Video 1: An overview of the Dawnice Residential Energy Storage System, demonstrating its operational flow and benefits.
5. Maintenance
Regular maintenance ensures optimal performance and longevity of your Dawnice Power Wall battery system.
5.1 Routine Checks
- Visual Inspection: Periodically inspect the battery unit for any signs of physical damage, corrosion, or loose connections.
- Ventilation: Ensure that ventilation openings are clear and not obstructed.
- Cleaning: Keep the exterior of the battery unit clean and free of dust. Use a dry, soft cloth. Do not use liquid cleaners.
- Monitoring: Regularly check the LCD screen or mobile app for any alerts or abnormal readings.
5.2 Firmware Updates
Periodically check for firmware updates from Dawnice to ensure your BMS operates with the latest features and optimizations. Updates can typically be performed via the communication ports or remotely if supported by the mobile app.
6. Troubleshooting
This section provides guidance for common issues. For problems not listed here or if issues persist, contact Dawnice customer support.
6.1 Common Issues and Solutions
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Inverter fault, PV issue, BMS protection, loose connection | Check inverter status. Verify PV input. Inspect all wiring. Check BMS error codes on LCD. |
| Battery not discharging | BMS protection (low SOC), inverter fault, communication error | Check battery SOC. Verify inverter operation. Check communication cables. |
| Abnormal temperature reading | Poor ventilation, extreme ambient temperature, internal fault | Ensure adequate airflow. Relocate if ambient temperature is too high/low. Contact support if persistent. |
| Communication error with inverter | Loose communication cable, incorrect protocol settings, inverter fault | Check RS485/CAN cables. Verify communication settings on both battery and inverter. |
7. Specifications
Key technical specifications for the Dawnice Power Wall Lithium Battery system.
Figure 6: Performance Specifications Table for various Dawnice LiFePO4 battery models, including HZEB-LCT-20 (20KWH).
| Feature | Specification (DW-PF-BRSets-4P001 / 4Sets*20KWH) |
|---|---|
| Nominal Voltage | 51.2V |
| Capacity (Ah) | 410Ah (per 20KWH unit) |
| Rated Energy (kWh) | 20.992 kWh (per unit) / 80KWH (4 sets) |
| Max. Charge/Discharge Current (A) | 200A |
| Voltage Range (V) | 44.8V - 57.6V |
| Scalability | Up to 15 units in parallel |
| Communication | CAN/RS485/RS232 |
| Cycle Life (@25°C, 80% DOD) | ≥6000 Cycles |
| Weight (per unit) | 198 KG (436.5 lbs) |
| Dimensions (L x W x H) (per unit) | 945 x 745 x 500 mm (37.2 x 29.3 x 19.7 inches) |
| Operating Temperature | Refer to detailed product sheet for specific ranges |
| Protection Rating | IP54 |
8. Warranty and Support
The Dawnice Power Wall Lithium Battery comes with a 10-year warranty, reflecting the manufacturer's confidence in its quality and durability. The design life of the product is increased to 15 years at 25°C.
8.1 Warranty Coverage
The 10-year warranty covers defects in materials and workmanship under normal use and service conditions. Please retain your proof of purchase for warranty claims.
8.2 Customer Support
For any questions, technical assistance, or warranty claims, please contact Dawnice customer support. You can send a message via the Amazon platform, and our team will respond within 24 hours.