1. Introduction
This manual provides essential information for the safe and efficient use of your DATOUBOSS 48V 100Ah LiFePO4 Battery. This high-performance lithium iron phosphate battery features a Smart Battery Management System (BMS) for enhanced safety and longevity, offering a deep cycle life and a lifespan of over 10 years. It is designed for a wide range of applications, including inverters, photovoltaic (PV) systems, recreational vehicles (RVs), marine applications, and golf carts.
2. Important Safety Warnings
⚠️ Please mind potential fire risk and strictly follow the instruction manual for charging and storage. For disposal, please check your local authority's website for more information and dispose of the lithium-ion battery safely in accordance with the applicable legal requirements.
- Do not short-circuit the positive and negative poles.
- Do not throw the battery into fire or water.
- Do not modify or disassemble the battery without authorization.
- Use only a LiFePO4 compatible charger that matches the output voltage of the lithium battery.
- Keep the battery away from children and pets.
- Avoid extreme temperatures, direct sunlight, and high humidity.
3. Package Contents
Upon opening the package, please verify that all items are present and undamaged:
- 1 x DATOUBOSS 48V 100Ah LiFePO4 Battery (Model: DT-100A-48V)
4. Specifications
| Feature | Specification |
|---|---|
| Product Name | LiFePO4 Battery |
| Model Number | DT-100A-48V |
| Rated Capacity | 100Ah / 5120Wh |
| Rated Voltage | 51.2V |
| Voltage Range | 42V - 58.4V |
| Charging Voltage | 57.6 ± 0.8V |
| Standard Charge Current | 50A |
| Maximum Continuous Charging Current | 80A |
| Rated Discharge Current | 100A |
| Maximum Continuous Discharging Current | 100A |
| Maximum Peak Discharge Current | 500A (duration less than 3 seconds) |
| Discharge Depth | ≥80% |
| Series and Parallel Connection | 4P4S (up to 4S4P configuration supported) |
| Battery Management System (BMS) | Built-in Smart BMS |
| Dimensions (LxWxH) | 53 x 27 x 22 cm (20.9 x 10.6 x 8.7 inches) |
| Weight | 77.16 lbs (approx. 35 kg) |
| Charging Temperature | 0℃ ~ 45℃ (32℉ ~ 113℉) |
| Discharging Temperature | -20℃ ~ 65℃ (-4℉ ~ 149℉) |
| Cycle Life | 5000-15000 deep cycles |
| Lifespan | Over 10 years |
| Certifications | CE, FCC, pse |
5. Setup and Installation
5.1 Terminal Connections
The battery is equipped with M8 terminal bolts for secure connections. Ensure all connections are tight to prevent arcing and power loss.
5.2 Series and Parallel Connections
The DATOUBOSS LiFePO4 battery supports up to a 4S4P configuration, allowing for flexible capacity and voltage expansion to meet various power requirements. Always ensure that batteries connected in series or parallel are of the same voltage, capacity, and type.
5.3 System Integration
This battery is ideal for integration with inverters, PV systems, and RV setups. Ensure your inverter and charge controller (e.g., MPPT controller for solar panels) are compatible with LiFePO4 battery characteristics, especially the charging voltage and current limits.
6. Operating Instructions
6.1 Charging
- Use a LiFePO4 compatible charger.
- Standard Charge Current: 50A.
- Maximum Continuous Charging Current: 80A.
- Charging Voltage: 57.6 ± 0.8V.
- Ensure charging occurs within the temperature range of 0℃ ~ 45℃ (32℉ ~ 113℉).
6.2 Discharging
- Rated Discharge Current: 100A.
- Maximum Continuous Discharging Current: 100A.
- Maximum Peak Discharge Current: 500A (for less than 3 seconds).
- Discharge Depth: ≥80%.
- Ensure discharging occurs within the temperature range of -20℃ ~ 65℃ (-4℉ ~ 149℉).
6.3 Battery Management System (BMS)
The integrated Smart BMS provides multiple security protections to ensure safe and reliable operation:
- Overcharge Protection
- Over-discharge Protection
- Over Voltage Protection
- Overcurrent Protection
- Overload Protection
- Short Circuit Protection
- High Temperature Cut-off
- Low Temperature Protection
7. Maintenance
- Regular Inspection: Periodically check battery terminals for corrosion or loose connections. Ensure the battery casing is free from damage.
- Temperature Management: Always operate and store the battery within the specified temperature ranges to maximize lifespan and performance.
- Storage: If storing the battery for an extended period, ensure it is charged to approximately 50-70% of its capacity and stored in a cool, dry place away from direct sunlight and extreme temperatures.
- Cycle Life: The battery is designed for 5000-15000 deep cycles, providing a lifespan of over 10 years under optimal conditions.
8. Troubleshooting
The built-in BMS is designed to prevent most common issues by activating protection modes. If the battery stops functioning, check the following:
- No Power Output: Check all cable connections for tightness and proper polarity. Verify that the battery voltage is within the operating range (42V-58.4V). The BMS might have activated an over-discharge protection if the voltage is too low.
- Not Charging: Ensure the charger is compatible with LiFePO4 batteries and provides the correct charging voltage (57.6 ± 0.8V). Check if the charging temperature is within 0℃ ~ 45℃. The BMS might have activated overcharge or temperature protection.
- Overcurrent/Overload Protection: If the battery suddenly cuts off power during discharge, it might be due to an excessive load. Reduce the load or check for short circuits in your system. The BMS will typically reset after the fault is removed.
- Temperature Issues: If the battery is exposed to temperatures outside its operating range, the BMS will activate temperature protection. Move the battery to a suitable environment and allow it to normalize before attempting to use or charge it.
If problems persist, contact customer support for assistance.
9. User Tips
- BMS Communication: For advanced system integration, especially with inverters that support BMS communication, consult your inverter's manual for specific connection and setup procedures. The DATOUBOSS battery features a Smart BMS, but direct communication protocols may vary between inverter brands.
- Optimal Performance: While the battery supports a wide temperature range, operating closer to room temperature (20-25℃) can help maximize its lifespan and efficiency.
- Load Management: Be mindful of your total power draw to avoid triggering overcurrent or overload protections, especially with high-power appliances.
10. Frequently Asked Questions (FAQ)
- Q: What is the cell arrangement for these batteries?
- A: The DATOUBOSS 48V 100Ah LiFePO4 battery uses a 4P4S internal cell arrangement. This means there are 4 cells connected in parallel, and 4 such parallel groups connected in series, resulting in a total of 16 cells.
- Q: How do I connect the BMS with the inverter's communication port?
- A: The battery's Smart BMS is designed for internal management. For external communication with an inverter, you would typically use a dedicated communication cable (if provided with your inverter or battery system) and follow the specific instructions in your inverter's user manual for BMS integration. Not all inverters support direct BMS communication.
- Q: What are the dimensions and weight of the battery?
- A: The battery dimensions are approximately 53 cm (20.9 in) in length, 27 cm (10.6 in) in width, and 22 cm (8.7 in) in height. It weighs about 77.16 lbs (35 kg).
- Q: What are the safe operating temperature limits?
- A: For charging, the temperature should be between 0℃ and 45℃ (32℉ and 113℉). For discharging, the temperature can range from -20℃ to 65℃ (-4℉ to 149℉).
11. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact your seller directly. Ensure you have your product model number (DT-100A-48V) and purchase details ready when contacting support.
