1. Introduction
The Dumfume LiFePO4 12V 100Ah Mini Battery is a lightweight, high-capacity lithium iron phosphate battery designed for a wide range of applications, including solar systems, RVs, boats, and general off-grid energy storage. This manual provides essential information for the safe and efficient use, installation, and maintenance of your battery.
Equipped with a 100A Battery Management System (BMS), this battery offers robust protection and a long cycle life, making it an excellent replacement for traditional lead-acid batteries.
2. What's in the Box
Upon unpacking, please verify that all the following items are included:
- 1x Dumfume 12V 100Ah Mini LiFePO4 Battery
- 2x M8 Terminal Bolts
- 2x Insulating Caps for Bolts
- 1x Product Manual (this document)
3. Specifications
The following table details the technical specifications of the Dumfume LiFePO4 12V 100Ah Mini Battery:
| Feature | Specification |
|---|---|
| Product Name | LiFePO4 Battery |
| Rated Capacity | 100Ah |
| Rated Voltage | 12.8V |
| Energy Capacity | 1280Wh |
| Terminal Bolt Size | M8 |
| Recommended Charging Current | 20-50A |
| Continuous Max Charging/Discharging Current | 100A |
| Charging Limit Voltage | 14.6V |
| Dimensions (L×W×H) | 10.23 × 6.61 × 8.46 inches |
| Weight | 21.61 lbs |
| Charging Temperature Range | 5°C to 45°C (41°F to 113°F) |
| Discharging Temperature Range | -20°C to 70°C (-4°F to 158°F) |
| Storage Temperature Range | -10°C to 45°C (14°F to 113°F) |
| Battery/Cell Classification | Lithium Iron Phosphate, LiFePO4 |
| Battery Included | Yes |
| High-Concerned Chemical | None |
| Certifications | CE, UL |
4. Safety Information
Your Dumfume LiFePO4 battery is equipped with a sophisticated 100A Battery Management System (BMS) to ensure safe operation and protect against various potential hazards. Please adhere to the following safety guidelines:
- BMS Protection: The integrated BMS provides protection against:
- Over-Charging
- Overvoltage
- Over-Current
- Short Circuit
- High-Temperature Cut-off
- Low-Temperature Cut-off
- Temperature Management: Operate and store the battery within the specified temperature ranges to prevent damage and ensure optimal performance.
- Charging: 5°C to 45°C (41°F to 113°F)
- Discharging: -20°C to 70°C (-4°F to 158°F)
- Storage: -10°C to 45°C (14°F to 113°F)
- Voltage and Amperage: Note that voltage and amperage may vary by 1%~5% due to different temperature/humidity measurement methods and instruments.
- Ventilation: Ensure adequate ventilation around the battery, especially during charging and discharging, to prevent heat buildup.
- Connections: Always use appropriate M8 terminal bolts and ensure all connections are secure and properly insulated to prevent short circuits.
5. Setup and Installation
Proper setup is crucial for the performance and longevity of your LiFePO4 battery. Follow these guidelines for installation:
5.1. Single Battery Connection
Connect the battery to your controller/inverter system using the provided M8 terminal bolts. Ensure positive (+) and negative (-) terminals are correctly identified and connected. Refer to the diagram below for typical single battery setup with a solar panel and inverter.
5.2. Parallel and Series Connections
This battery supports parallel and series connections up to 4S4P, allowing for a maximum battery system of 51.2V 400Ah. This enables a maximum capacity of 1280 kWh for larger power needs.
- Important: Before connecting batteries in series or parallel, check and ensure that the voltage difference between each battery is controlled within 0.1V.
- For series connections, connect the positive terminal of one battery to the negative terminal of the next.
- For parallel connections, connect positive terminals together and negative terminals together.
Controller/Inverter Setting Parameters for a Single Battery:
| Parameter | Value |
|---|---|
| Charging Voltage | 14.6V |
| Float Voltage | 14.2V |
| Charging Current | 0.2-0.5C |
| Current Limit | ≤ 100A |
| High Voltage Disconnect Voltage | 14.6V + 0.1V |
| High Voltage Recovery Voltage | 14.2V + 0.1V |
| Low Voltage Disconnect Voltage | 9.2V ± 0.12V |
| Low Voltage Recovery Voltage | 10.8V ± 0.12V |
| Balanced Charging | Off |
| Charging Temperature Range | 5°C to 45°C |
| Discharging Temperature Range | -20°C to 45°C |
| Storage Temperature | -10°C to 45°C |
Note: If there are 2 batteries, set the voltage to single battery voltage * 2, and so on for more batteries in series.
6. Operating Instructions
The Dumfume LiFePO4 battery is designed for versatile use in various applications:
- Portable Power: Its lightweight design makes it ideal for portable applications like camping and RVs.
- Off-Grid Systems: Suitable for solar power systems, street lights, and backup power supplies.
- Marine Applications: Can be used in boats for reliable power.
- Electric Vehicles: Powers e-bikes and other small electric vehicles.
- Monitoring Systems: Provides stable power for security and monitoring equipment.
6.1. Cycle Life
The battery offers an extended cycle life, significantly outperforming lead-acid batteries:
- 4000+ cycles at 100% Depth of Discharge (DOD)
- 6000+ cycles at 80% DOD
- 15000+ cycles at 60% DOD
7. Maintenance
To ensure the longevity and optimal performance of your Dumfume LiFePO4 battery, follow these maintenance recommendations:
- Regular Charging/Discharging: If the battery is not in use for an extended period, please charge and discharge it every 6 months to prevent damage.
- Clean Terminals: Periodically check and clean the battery terminals to ensure good electrical contact and prevent corrosion.
- Temperature Control: Always operate and store the battery within its specified temperature ranges. Avoid exposing it to extreme heat or cold for prolonged periods.
- Physical Inspection: Regularly inspect the battery for any signs of physical damage, swelling, or leaks. If any issues are observed, discontinue use and contact support.
8. Troubleshooting
If you encounter issues with your Dumfume LiFePO4 battery, consider the following common troubleshooting steps:
- Battery Not Charging:
- Check all connections to the charger and battery for looseness or corrosion.
- Verify that the charger settings match the recommended parameters (refer to Section 5.2).
- Ensure the ambient temperature is within the charging temperature range (5°C to 45°C).
- Battery Not Discharging/Low Power Output:
- Check all load connections for security.
- Ensure the ambient temperature is within the discharging temperature range (-20°C to 70°C).
- The BMS may have activated a protection mode (e.g., low voltage cut-off, over-current). Disconnect the load, allow the battery to rest, and then attempt to charge it.
- Unusual Odor or Heat:
- Immediately disconnect the battery from all loads and chargers.
- Move the battery to a safe, well-ventilated area.
- Contact customer support immediately.
For persistent issues or concerns not covered here, please contact Dumfume customer support.
9. User Tips
- Initial Charge: It is recommended to fully charge the battery before its first use to ensure optimal performance.
- System Compatibility: Always ensure that your charger, inverter, and other system components are compatible with LiFePO4 battery specifications.
- Parallel/Series Setup: When connecting multiple batteries, ensure they are of the same model and capacity, and that their voltages are closely matched (within 0.1V) before making connections.
- Environmental Protection: While robust, protect the battery from direct exposure to harsh weather conditions, excessive moisture, and extreme physical impact.
10. Warranty and Support
For warranty information, technical support, or any questions regarding your Dumfume LiFePO4 battery, please contact the seller or manufacturer directly.
- Brand: DUMFUME
- Seller: DUMFUME Store Store
- Website: www.dumfume.cn
- Contact Email: dumfume@hotmail.com
- Provider: Shenzhen Dumfume Commerce Co., Ltd
Please have your product model and purchase date available when contacting support.
