1. Introduction
Thank you for choosing the DATOUBOSS IP65 Waterproof 48V 300Ah 15KWH LiFePO4 Power Wall-Mounted Lithium Ion Battery. This high-capacity, reliable, and safe energy storage system is designed for various applications including home storage, off-grid systems, yachts, RVs, and cars. Featuring a robust IP65 waterproof rating, an intelligent Battery Management System (BMS), and a long cycle life, this battery provides a flexible and efficient power solution. This manual provides essential information for the safe installation, operation, and maintenance of your battery system.
2. Important Safety Warnings
- Read all instructions carefully before installation and operation.
- Only qualified personnel should install and service this battery system.
- Do not disassemble, puncture, or modify the battery.
- Avoid exposing the battery to fire, extreme heat, or direct sunlight for prolonged periods.
- Ensure proper ventilation during operation, especially in enclosed spaces.
- Wear appropriate personal protective equipment (PPE) including insulated gloves and eye protection when handling the battery.
- Keep children and pets away from the battery system.
- In case of fire, use a Class D fire extinguisher (for lithium-ion fires). Do not use water.
- The battery is IP65 rated for water and dust resistance, but avoid submerging it or exposing it to high-pressure water jets.
3. Package Contents
Please check the package for the following items:
- DATOUBOSS Lithium-ion Battery (Model: LFP48-300-FSD, 15.36kWh, 51.2V/300Ah)
- Instruction Manual (this document)
- Bolts for installation
- Red Insulating Sleeves
- Black Insulating Sleeves
- Small Nuts
- Yellow Network Cable
- Red-black Cable
- Metal Bracket for wall mounting
- Product Specification Label
4. Product Overview
4.1 Dimensions
4.2 Component Identification
- Alarm Indicator: Indicates system alarms or warnings.
- Operation Indicator: Shows the current operating status.
- Switching Indicator: Indicates the state of internal switching.
- Dry Contact: For external control or monitoring signals.
- Reset Switch: Used to reset the system.
- DIP Address: For setting communication addresses, especially in parallel configurations.
- Battery Indicator: Displays battery charge level or status.
- CAN Port: Communication interface for host computer or inverter.
- RS232 Port: Communication interface for parallel communication.
- RS485 Port: Communication interface for host computer/inverter or parallel communication.
- Battery Negative Terminal: Main negative power connection.
- Battery Positive Terminal: Main positive power connection.
- LCD Display: Color touch screen for real-time monitoring and settings.
- Push Button Switch: Auxiliary control button.
- Air Switch: Main circuit breaker for safety and power control.
4.3 Intelligent BMS Protection
The integrated Battery Management System (BMS) provides comprehensive protection for safe and reliable operation:
- Overcurrent Protection
- Overheating Protection
- Rectification Protection
- Short-Circuit Protection
- Overdischarge Protection
- Overcharge Protection
4.4 Communication Interfaces
The battery supports various communication protocols for integration with inverters and other systems:
- RS232: Primarily for parallel communication.
- RS485: For connection to a host computer or inverter, and parallel communication.
- CAN: For connection to a host computer or inverter.
The battery is compatible with major inverter brands such as PYLONTECH, GROWATT, and iDeye.
5. Specifications
| Project | Specification |
|---|---|
| Model | LFP48-300-FSD |
| Brand Name | DATOUBOSS |
| Battery Type | Semi-solid state, LiFePO4 |
| Cathode Materials | LiFePO4 |
| Battery Capacity | 15.36kWh |
| Single Battery Capacity | 300Ah |
| Nominal Operating Voltage | 51.2V |
| Battery Internal Resistance | <10mΩ |
| 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℃ |
| Charge Over-Temperature Protection Recovery | 45℃ (tunable) |
| Charging Low Temperature Protection | 0℃ (tunable) |
| Charge Cryoprotection Recovery | 5℃ |
| Discharge Over-Temperature Protection | 50℃ |
| Discharge Over-Temperature Protection Recovery | 45℃ |
| Low Temperature Protection | -15℃ |
| Low Temperature Protection Recovery | -10℃ |
| 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℃, 70% SOH) | ≥8000 Cycles |
| Battery Cycle Life (45℃, 70% SOH) | ≥3000 Cycles |
| Communication Protocols | RS232, RS485, CAN |
| Dimensions (LxWxH) | 453x260x879mm |
| Weight | 110kg |
| Max Load Quantity (cells) | 8 |
| Parallel Capacity | Up to 15 units |
| Operating Temperature | -10~50℃ |
| Place of Origin | Henan, China |
6. Setup and Installation
6.1 Site Selection and Mounting
- Choose a cool, dry, and well-ventilated location for installation.
- Ensure the mounting surface is strong enough to support the battery's weight (110kg).
- Maintain recommended clearances: at least 20cm (7.8in) from the sides and 50cm (19.6in) from the top and bottom for proper airflow and access.
- The battery can be wall-mounted using the provided metal bracket or placed on a flat surface using its integrated rollers for mobility.
6.2 Wiring Diagram
The DATOUBOSS battery integrates seamlessly into home solar energy storage systems. Below is a schematic diagram illustrating typical connections:
- Photovoltaic Modules: Connect your solar panels to your inverter, which will then charge the battery.
- Generator: A generator can be connected to the system via the inverter to provide backup power or charge the battery.
- Power Grid: The battery system can be connected to the utility grid for charging or feeding excess power back (if supported by your inverter and local regulations).
- Load: Connect your household appliances and devices to the inverter output.
- Battery Connections: Use the provided red-black cables to connect the battery's positive (12) and negative (11) terminals to your inverter. Ensure correct polarity.
6.3 Communication Connections
Connect the appropriate communication cables (Yellow Network Cable for RS485/CAN/RS232) between the battery and your inverter or monitoring system based on the required protocol. Refer to Figure 4.4 for pin definitions.
6.4 Parallel Connection
Up to 15 units of this battery can be connected in parallel to increase total capacity. Ensure all batteries are of the same model and state of charge before connecting. Use the DIP Address switches (6) to set unique addresses for each battery in a parallel configuration, and connect them via the RS485 or RS232 ports as per the communication interface definitions.
7. Operating Instructions
7.1 Powering On/Off
- To Power On: Ensure all connections are secure. Turn on the Air Switch (15). The LCD display (13) should illuminate, and the Operation Indicator (2) will show activity.
- To Power Off: Turn off the Air Switch (15). The LCD display will turn off.
7.2 Using the LCD Touch Screen
The color touch screen (13) provides real-time monitoring and allows you to adjust various parameters. Navigate through the menus by touching the screen.
- Monitoring: View real-time data such as Voltage, Capacity (Ah), Power (W), Current (A), and the Charge (CHG) or Discharge (DSG) status.
- Temperature: Monitor the internal battery temperature.
- Settings: Access various settings including master/slave configuration (for parallel systems), parameter adjustments, and communication protocol selection.
8. Maintenance
- Regular Inspection: Periodically check all cables and connections for tightness and signs of corrosion or damage.
- Cleaning: Keep the battery's exterior clean and free of dust. Use a dry, soft cloth. Do not use harsh chemicals or abrasive cleaners.
- Temperature Management: Ensure the operating environment stays within the recommended temperature range (-10℃ to 50℃) to maximize battery life and performance.
- Software Updates: Check with DATOUBOSS support for any available firmware updates for the BMS to ensure optimal performance and compatibility.
- Storage: If storing the battery for an extended period, ensure it is charged to 40-60% capacity and stored in a cool, dry place.
9. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not powering on | Air Switch is off; Loose connections; Battery deeply discharged. | Ensure Air Switch (15) is on. Check all power cable connections. If deeply discharged, connect to a compatible charger. |
| Alarm Indicator (1) is lit | BMS protection triggered (e.g., overcharge, overdischarge, overcurrent, temperature). | Check the LCD display for specific error codes or messages. Address the underlying issue (e.g., reduce load, check charging parameters, ensure proper ventilation). Reset the system using the Reset Switch (5) if necessary after resolving the cause. |
| No communication with inverter/monitoring system | Incorrect cable connection; Wrong communication protocol selected; Incorrect DIP Address settings (for parallel systems). | Verify communication cable connections. Ensure the correct protocol (RS232, RS485, CAN) is selected on both the battery and the inverter. Check DIP Address settings for parallel systems. |
| Reduced capacity or performance | Operating outside recommended temperature range; Battery aging; Improper charging/discharging. | Ensure operating temperature is within -10℃ to 50℃. Review charging and discharging parameters. If battery is old, consider replacement. |
10. User Tips
- Optimize Charging: For optimal battery longevity, avoid consistently charging to 100% or discharging to 0% unless absolutely necessary. Aim for a charge range between 20% and 80% for daily use.
- Monitor Temperature: While the battery has robust temperature protection, keeping it in a stable, moderate temperature environment will extend its lifespan and efficiency.
- Parallel System Balancing: In parallel configurations, regularly monitor the individual battery states via the LCD or connected system to ensure they are balanced. The passive equalization feature helps, but external monitoring is always beneficial.
- Secure Connections: Loose connections can lead to resistance, heat buildup, and potential system failures. Always ensure all terminals are securely fastened.
11. Warranty and Support
The DATOUBOSS LiFePO4 Power Wall-Mounted Lithium Ion Battery comes with a 5-year guarantee covering non-human-caused defects. This warranty ensures peace of mind and is backed by prompt professional support.
For technical assistance, warranty claims, or any questions regarding your product, please contact DATOUBOSS customer support:
- Whatsapp: +86 18900786512
- Email: 3509534322@qq.com
- WeChat: +8618900786512
Please have your model number (LFP48-300-FSD) and purchase details ready when contacting support.
