1. Introduction
This manual provides essential information for the safe and efficient operation of your DATOUBOSS LFP48-300-FSD Lithium Iron Phosphate (LiFePO4) Battery. This high-capacity, wall-mounted energy storage system is designed for various applications, including home energy storage, off-grid systems, yachts, and RVs. Please read this manual thoroughly before installation and use, and retain it for future reference.
Figure 1: DATOUBOSS LFP48-300-FSD Battery and included components.
2. Safety Information
Your DATOUBOSS LiFePO4 battery is equipped with an integrated Battery Management System (BMS) for enhanced safety. However, proper handling and installation are crucial to prevent hazards. Always adhere to the following safety guidelines:
- Do not disassemble, crush, puncture, or short-circuit the battery.
- Keep the battery away from fire, heat sources, and direct sunlight.
- Do not immerse the battery in water or other liquids. The unit has an IP65 waterproof rating, but direct immersion is not recommended.
- Ensure proper ventilation during operation and charging.
- Use only compatible chargers and inverters.
- Wear appropriate personal protective equipment (PPE), such as 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.
- Integrated BMS provides protection against overcharge, overdischarge, overcurrent, and short-circuit.
Figure 2: BMS Intelligent Protection features.
3. Package Contents
Inspect the unit before installation. Make sure there is no damage to the package. You should receive the following items:
- DATOUBOSS Lithium-ion Battery (Model: LFP48-300-FSD, 15.36kWh, 51.2V/300Ah)
- Instruction Manual
- Bolts (for wall mounting)
- Red Insulating Sleeves
- Black Insulating Sleeves
- Small Nuts
- Yellow Network Cable (Communication cable)
- Red-black Cable (Battery connection cable)
- Metal Bracket (Wall-mount bracket)
- Product Specification Label
Figure 3: Package contents.
4. Specifications
| Project | Specification |
|---|---|
| Model | LFP48-300-FSD |
| Battery Capacity | 15.36kWh |
| Battery Internal Resistance | <10mΩ |
| Single Battery Capacity | 300Ah |
| Nominal Operating Voltage | 51.2V |
| Maximum Output Current | 210A |
| Standard Input Current | 150A (Max 210A) |
| Overpressure Protection | 58.4V |
| Overcharge Protection Recovery | 54.0V |
| Overdischarge Protection | 43.2V |
| Overdischarge Protection Recovery (within 30 seconds) | 48V (tunable) |
| Charging Over-Temperature Protection | 50°C |
| Charge Over-Temperature Protection Recovery | 45°C (tunable) |
| Charging Low Temperature Protection | 0°C (tunable) |
| Charge Cryoprotection Recovery | 5°C |
| Discharge Over-Temperature Protection | 50°C |
| Discharge Over-Temperature Protection Recovery | 45°C |
| Low Temperature Protection | -15°C |
| Low Temperature Protection Recovery | -10°C |
| Charging Overcurrent | 215A |
| Discharge Overcurrent Protection | 215A |
| Short Circuit Protection | Yes |
| Amount Of Electricity Shipped | 40% to 60% |
| Equalization | Passive equilibrium |
| Power Off Self-Consumption | ≤300uA |
| Battery Cycle Life (25°C, 70% SOH) | ≥8000 Cycles |
| Battery Cycle Life (45°C, 70% SOH) | ≥3000 Cycles |
| Communication Protocols | RS232, RS485, CAN |
| Dimensions (LxWxH) | 453x260x879mm (17.7 x 10.2 x 33.8 inches) |
| Weight | 110kg (242 lbs) |
| Certification | CE |
| Application | Power Tools, BOATS, Uninterruptible Power Supplies, Solar Energy Storage |
| Parallel Capacity | Up to 15 units |
| BMS | Built-in Smart BMS |
| Cell Type | LiFePO4 Rechargeable Battery Cell |
Figure 4: Product Dimensions.
5. Installation Instructions (Setup)
5.1 Unpacking and Inspection
Before installation, carefully unpack the battery and inspect it for any signs of damage. Ensure all items listed in the 'Package Contents' section are present.
Figure 5: Unpacking and Inspection details.
5.2 Component Identification
Familiarize yourself with the battery's interfaces and indicators:
- Alarm Indicator
- Operation Indicator
- Switching Indicator
- Dry contact
- Reset Switch
- DIP Address
- Battery Indicator
- CAN Port
- RS232 Port
- RS485 Port
- Battery Negative Terminal
- Battery Positive Terminal
- LCD Display
- Push Button Switch
- Air Switch
Figure 6: Detailed view of interfaces and indicators.
5.3 Interface Definition
The communication ports (RS485, CAN, RS232) allow connection to host computers or inverters, and for parallel communication. Refer to the table below for pin descriptions:
Figure 7: Interface Pin Definitions.
5.4 Mounting
The battery supports both fixed wall-mount installation and mobility with its roller design. For wall-mounting, ensure adequate clearance:
- Minimum 50cm (19.6in) clearance from the top and bottom.
- Minimum 20cm (7.8in) clearance from the sides.
Use the provided metal bracket and bolts for secure wall installation. Ensure the mounting surface can support the battery's weight (110kg).
Figure 8: Wall-mount clearances.
5.5 System Connection
The DATOUBOSS battery is designed to integrate into a home solar energy storage system. Connect photovoltaic modules, the power grid, and your load to the battery system as per the schematic diagram. The BMS interface is compatible with various inverter brands such as PYLONTECH, GROWATT, and iDeye.
Figure 9: Schematic Diagram of Home Solar Energy Storage System.
Figure 10: BMS Interface Compatibility.
6. Operating Instructions
6.1 Powering On/Off
- To power on the battery, ensure all connections are secure, then activate the Air Switch and press the Push Button Switch.
- To power off, reverse the process: press the Push Button Switch, then deactivate the Air Switch.
6.2 LCD Display and Monitoring
The battery features a color touch screen for real-time monitoring of key parameters. The display is easy to operate and allows switching between multiple pages to view information such as:
- Voltage (V)
- Capacity (%)
- Current (A)
- Power (W)
- Charge (CHG) / Discharge (DSG) status
- Internal Temperature (°C)
- Cell Voltage (Min/Max)
- State (e.g., Master, Slave, Parameter, Protocol, Setting)
Navigate the touch screen to access different monitoring and setting options.
Figure 11: Real-time Monitoring with Color Touch Screen.
6.3 Parallel Operation
The DATOUBOSS LFP48-300-FSD battery supports parallel connection of up to 15 units to increase total energy storage capacity. Ensure proper communication protocols (RS232, RS485, CAN) are configured for synchronized operation. Consult a qualified electrician for multi-unit installations.
7. Maintenance
LiFePO4 batteries are generally low-maintenance, but following these guidelines will ensure optimal performance and longevity:
- Regular Inspection: Periodically check all cables and connections for tightness and signs of corrosion or damage.
- Cleaning: Keep the battery unit clean and free from dust and debris. Use a dry cloth for cleaning. Do not use harsh chemicals or abrasive materials.
- Temperature Management: Operate the battery within the specified temperature ranges (Operating Temperature: -10~50°C). Avoid prolonged exposure to extreme temperatures.
- Storage: If storing the battery for an extended period, ensure it is charged to 40-60% of its capacity. Store in a cool, dry place away from direct sunlight.
- Firmware Updates: Check with DATOUBOSS support for any available firmware updates for the BMS to ensure optimal performance and safety features.
8. Troubleshooting
If you encounter issues with your DATOUBOSS battery, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not powering on | Air Switch off, Push Button Switch not pressed, low battery voltage, loose connections. | Ensure Air Switch is on and Push Button Switch is pressed. Check battery voltage on LCD. Verify all cable connections. |
| No output power | Overdischarge protection activated, BMS fault, inverter issue. | Check battery voltage. If below 43.2V, recharge immediately. If BMS alarm is active, consult support. Check inverter status. |
| Charging issues | Overcharge protection, over/low temperature protection, charger fault. | Verify charging voltage is within 54.0V. Check battery temperature. Ensure charger is functioning correctly. |
| Communication error | Incorrect cable connection, wrong protocol settings, inverter incompatibility. | Check communication cable (Yellow Network Cable) connections. Verify DIP switch settings for address. Ensure inverter supports RS232/RS485/CAN protocols. |
| Alarm Indicator active | BMS detected an abnormal condition (e.g., overcurrent, over/under voltage, temperature). | Check LCD for specific alarm details. Address the underlying issue (e.g., reduce load, check temperature). If persistent, contact support. |
For issues not covered here or if problems persist, please contact DATOUBOSS customer support.
9. User Tips
- Optimal Performance: For best long-term performance, try to keep the battery's state of charge between 20% and 80% when possible, rather than consistently cycling from 0% to 100%.
- Temperature Awareness: While the battery has wide operating temperature ranges, extreme cold or heat can impact efficiency and lifespan. If possible, maintain the battery in a climate-controlled environment.
- System Integration: When integrating with a solar inverter, ensure the inverter's settings (e.g., charge voltage, discharge cut-off) are correctly configured to match the battery's specifications to prevent premature BMS activation.
- Regular Monitoring: Utilize the color touch screen to regularly monitor the battery's health and performance. Early detection of anomalies can prevent larger issues.
10. Warranty & Support
The DATOUBOSS LFP48-300-FSD battery comes with a 5-year guarantee covering non-human-caused defects. This warranty ensures reliable performance and peace of mind.
Customer Support:
For technical assistance, warranty claims, or any inquiries, please contact DATOUBOSS support:
- Whatsapp: +86 18900786512
- Email: 3509534322@qq.com
- WeChat: +8618900786512
Please provide your product model (LFP48-300-FSD) and a detailed description of the issue when contacting support.
