1. Introduction
The DATOUBOSS 12V300Ah Deep Cycle Lithium Iron Phosphate (LiFePO4) Battery is designed for reliable and long-lasting power in various applications, including RVs, golf carts, boats, and solar energy systems. Featuring a built-in intelligent Battery Management System (BMS), this battery offers enhanced safety, performance, and an extended lifespan compared to traditional lead-acid batteries.
Key Features:
- High Energy Density: Provides stable and powerful performance.
- Integrated BMS: Offers comprehensive protection and automatic equalization.
- Long Cycle Life: 5000+ cycles, with a lifespan of over 10 years.
- Environmentally Friendly: A greener alternative to lead-acid batteries.
- Versatile Applications: Suitable for off-grid solar, RVs, marine, and more.
2. Safety Information
⚠️ Please read all safety instructions carefully before installation and use. Failure to follow these instructions may result in serious injury, property damage, or voiding of your warranty.
- Fire Risk: Mind potential fire risk and strictly follow the instruction manual for charging and storage.
- Disposal: 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.
- No Short-Circuit: Do not short-circuit the positive and negative poles.
- No Disassembly: Do not modify or disassemble the battery without authorization.
- Avoid Extreme Conditions: Do not throw the battery into fire or water.
- Use Correct Charger: Please use the standard charger that matches the output voltage of the lithium battery.
- Ventilation: Ensure adequate ventilation when charging or discharging.
Built-in BMS Protection:
The integrated Battery Management System (BMS) provides multiple layers of protection:
- Overcharge Protection
- Over-discharge Protection
- Overcurrent Protection
- Short Circuit Protection
- High Temperature Protection
- Cryogenic Protection
3. Setup and Installation
Initial Inspection:
Upon receiving your battery, inspect it for any visible damage. If damage is found, contact customer support immediately.
Initial Charge:
It is recommended to fully charge the battery before its first use to ensure optimal performance and calibration of the BMS.
Series and Parallel Connection:
The DATOUBOSS LiFePO4 battery supports both series and parallel connections to achieve desired voltage and capacity configurations. You can connect up to 4 batteries in series (4S) and up to 4 strings in parallel (4P) for a maximum system of 4P4S, reaching 51.2V 480Ah (24.57KWh).
- Parallel Connection: Connect batteries in parallel to increase total capacity (Ah) while maintaining the same voltage (12.8V). Ensure all batteries are at a similar state of charge before connecting in parallel.
- Series Connection: Connect batteries in series to increase total voltage (e.g., two 12.8V batteries in series create a 25.6V system). Ensure all batteries have the same capacity and are at a similar state of charge before connecting in series.
- Cable Sizing: Use appropriate gauge cables for your connections to handle the expected current without excessive voltage drop or overheating.
4. Operating Instructions
Charging:
- Use a LiFePO4 compatible charger with the correct voltage and current settings.
- Maximum Continuous Charging Current: 100A.
- Recommended Charging Temperature: -4°F (-20°C) to 122°F (50°C).
Discharging:
- Maximum Continuous Discharge Current: 200A.
- Recommended Discharge Temperature: -4°F (-20°C) to 140°F (60°C).
- The BMS will automatically cut off power if the battery voltage drops below the safe discharge limit or if current/temperature limits are exceeded.
Applications:
This battery is ideal for a wide range of applications:
- Recreational Vehicles (RVs) & Campers: Powering appliances and electronics on the go.
- Marine Applications: Trolling motors, fish finders, and general boat power.
- Solar Energy Systems: Efficient energy storage for off-grid or grid-tied solar setups.
- Home Energy Storage: Backup power for essential household appliances.
- Outdoor Activities: Camping, self-driving tours, and other portable power needs.
5. Maintenance
- Regular Inspection: Periodically check the battery terminals for corrosion or loose connections. Ensure the battery casing is free from damage.
- Cleaning: Keep the battery clean and dry. Use a dry cloth to wipe off any dust or dirt. Do not use solvents or abrasive cleaners.
- Storage: If storing the battery for an extended period, ensure it is charged to approximately 50-70% of its capacity. Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Deep Discharge: While the BMS protects against over-discharge, it's best practice to avoid consistently running the battery to its absolute minimum charge level to maximize lifespan.
6. Troubleshooting
If you encounter issues with your DATOUBOSS LiFePO4 battery, consider the following common problems and solutions:
- Battery Not Charging:
- Check charger connection and ensure it's a LiFePO4 compatible charger.
- Verify the charger's output voltage matches the battery's requirements.
- Inspect battery terminals for corrosion or loose connections.
- The BMS may have activated protection (e.g., over-discharge). Try connecting to a charger to reset. - No Power Output:
- Check all connections to the load for tightness and proper polarity.
- The BMS may have activated protection (e.g., overcurrent, low voltage). Disconnect the load, wait a few minutes, and try again. If low voltage, charge the battery. - Reduced Performance/Capacity:
- Ensure the battery is fully charged before use.
- Verify that the operating temperature is within the recommended range.
- If multiple batteries are in series/parallel, ensure all connections are secure and batteries are balanced. - Unusual Heat or Smell:
- Immediately disconnect the battery from all loads and chargers.
- This indicates a serious issue. Contact customer support immediately.
If troubleshooting steps do not resolve the issue, please contact DATOUBOSS customer support for assistance.
7. Specifications
| Feature | Specification |
|---|---|
| Model Number | DT12-300 |
| Nominal Voltage | 12.8V |
| Nominal Capacity | 300Ah |
| Energy | 3840Wh |
| BMS | 200A (Built-in) |
| Voltage Range | 10V - 14.6V |
| Terminal Type | M8 |
| Max Continuous Charging Current | 100A |
| Max Continuous Discharge Current | 200A |
| Number of Cycles | 4000 - 8000+ |
| Charging Temperature | -4°F (-20°C) to 122°F (50°C) |
| Discharge Temperature | -4°F (-20°C) to 140°F (60°C) |
| Weight | 30kg (66.14 lbs) |
| Dimensions (L x W x H) | 49 x 26 x 22 cm (20 x 10 x 9 inch) |
8. User Tips
- Balance Cells: For multi-battery systems (series/parallel), ensure cells are balanced periodically for optimal performance and longevity.
- Proper Ventilation: Always ensure adequate airflow around the battery, especially during charging and heavy discharge, to prevent heat buildup.
- Monitor Connections: Regularly check that all terminal connections are tight and free from corrosion to prevent resistance and potential hazards.
- Use Compatible Components: Always pair your LiFePO4 battery with compatible chargers, inverters, and other system components designed for lithium iron phosphate chemistry.
9. Warranty and Support
Warranty:
The DATOUBOSS 12V300Ah Deep Cycle Lithium Iron Phosphate Battery comes with a 5-year guarantee, ensuring quality and reliability.
Customer Support:
For any questions, technical assistance, or warranty claims, please contact DATOUBOSS customer support. Our team is committed to answering your questions within 24 hours.
10. Battery Disposal
Lithium Iron Phosphate batteries contain materials that should not be disposed of with regular household waste. Please recycle your battery responsibly at an authorized recycling facility. Consult your local waste management authority for specific disposal guidelines in your area.
