1. Introduction
Thank you for choosing the yeagulch 12V 100Ah Mini LiFePO4 Lithium Battery. This battery is engineered for deep cycle applications, offering a long service life and reliable power for various systems. It is an ideal energy storage solution for recreational vehicles (RVs), solar power systems, marine applications, and residential energy storage. This manual provides essential information for the safe and efficient use, installation, and maintenance of your battery.
Figure 1: Versatile applications of the yeagulch 12V 100Ah Mini LiFePO4 battery.
2. Safety Information
Please read and understand all safety instructions before operating the battery. Failure to follow these instructions may result in electric shock, fire, serious injury, or property damage.
- This 12V 100Ah Mini LiFePO4 battery is designed exclusively for energy storage applications.
- DO NOT use this battery for starting devices, golf carts, or jacks.
- DO NOT throw the battery into fire or expose it to extreme heat.
- Avoid short-circuiting the battery terminals. Ensure proper insulation during installation.
- Keep the battery away from children and pets.
- Ensure adequate ventilation when installing and operating the battery.
- Wear appropriate personal protective equipment (PPE), such as gloves and eye protection, when handling the battery.
- In case of battery damage or leakage, avoid contact with the electrolyte and seek professional assistance.
Figure 2: Key safety precautions and connection guidelines.
3. Product Overview
3.1 Features
- Long Cycle Life: Capable of 6000+ cycles at 80% Depth of Discharge (DOD), significantly outperforming lead-acid batteries.
- Smart Battery Management System (BMS): Built-in 100A BMS provides comprehensive protection against overcharging, over-discharging, overvoltage, overcurrent, short circuits, and low/high temperature.
- Compact and Lightweight Design: Weighs approximately 20.94 lbs, making it lighter and smaller than traditional 12V 100Ah LiFePO4 batteries, facilitating easier transportation and installation.
- High Energy Density: Provides 1280Wh of energy.
- IP67 Waterproof Rating: Designed to operate reliably in extreme environments.
- Wide Operating Temperature Range: Maintains normal charge and discharge performance from -4°F to 140°F (-20°C to 60°C).
Figure 3: Integrated Smart BMS for multi-protection.
3.2 Components
- yeagulch 12V 100Ah Mini LiFePO4 Battery Unit
- M8 Terminal Bolts (16mm length)
Figure 4: Product dimensions and terminal specifications.
4. Setup
4.1 Unpacking and Inspection
- Carefully remove the battery from its packaging.
- Inspect the battery for any visible damage during shipping. If damage is found, contact your seller immediately.
- Verify that all components, including the M8 terminal bolts, are present.
4.2 Installation Guidelines
- Choose a clean, dry, and well-ventilated location for installation.
- Ensure the battery is securely mounted to prevent movement or vibration.
- Connect the battery terminals using appropriate cables and ensure connections are tight. The terminal bolts are M8 (16mm length).
- When connecting multiple batteries in series or parallel, ensure all batteries are of the same brand, type, voltage, capacity, and have identical BMS. For optimal performance and safety, it is recommended that batteries for series-parallel connections are purchased within the same month.
- Always connect the positive (+) terminal to the positive (+) terminal and the negative (-) terminal to the negative (-) terminal for parallel connections. For series connections, connect the positive (+) of one battery to the negative (-) of the next.
- Use a compatible LiFePO4 charger for charging.
5. Operating Instructions
5.1 Charging and Discharging
- The battery is designed for deep cycle use. Avoid using it for high-current starting applications.
- Use a charger specifically designed for LiFePO4 batteries with appropriate voltage and current settings.
- The integrated BMS protects against overcharging and over-discharging, but it is good practice to monitor charge levels.
- Voltage and current readings may deviate by 1% to 5% depending on measurement methods, instruments, and environmental conditions.
5.2 Temperature Considerations
The battery features low-temperature protection to ensure safe operation and longevity. Observe the following temperature guidelines:
- Charging Off: Below 0°C (32°F), the BMS will prevent charging.
- Charging Recovery: Charging will resume when the temperature rises above 5°C (41°F).
- Discharging Off: Below -20°C (-4°F), the BMS will prevent discharging.
- The battery maintains normal performance within its wide operating temperature range of -4°F to 140°F (-20°C to 60°C).
Figure 5: Performance comparison with lead-acid batteries.
Figure 6: Important usage considerations.
6. Maintenance
- Regular Charging/Discharging: To prevent damage from disuse, charge and discharge the battery at least once every six months.
- Terminal Inspection: Periodically check the battery terminals for corrosion or looseness. Clean terminals as needed and ensure connections are tight.
- Storage: If storing the battery for an extended period, ensure it is charged to approximately 50% state of charge and stored in a cool, dry place away from direct sunlight and extreme temperatures.
- Cleaning: Keep the battery casing clean and free of dust and debris. Use a dry cloth for cleaning.
7. Troubleshooting
If you encounter issues with your yeagulch LiFePO4 battery, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Charger not connected, charger fault, battery temperature too low, BMS protection activated (over-discharge) | Check charger connection and functionality. Ensure ambient temperature is above 0°C (32°F). If BMS protection is active, allow battery to warm up or connect to a compatible charger to reset. |
| Battery not discharging/low power output | Battery discharged, BMS protection activated (over-discharge, overcurrent, low temperature), loose connections | Charge the battery. Check for loose or corroded terminal connections. Ensure ambient temperature is above -20°C (-4°F). Reduce load if overcurrent protection is active. |
| Battery appears dead | Deeply discharged, BMS in protection mode | Attempt to charge with a compatible LiFePO4 charger. If the battery does not respond, contact customer support. |
If the problem persists after following these steps, please contact yeagulch customer support for further assistance.
8. Specifications
| Attribute | Specification |
|---|---|
| Brand | yeagulch |
| Model Number | AUYS95347-00 |
| Nominal Voltage | 12.8 Volts |
| Nominal Capacity | 100 Ah |
| Energy | 1280 Wh |
| Battery Cell Composition | Lithium Iron Phosphate (LiFePO4) |
| Cycle Life | 6000+ cycles at 80% DOD |
| Built-in BMS | 100A (Overcharge, Over-discharge, Overvoltage, Overcurrent, Short Circuit, Low/High Temp Protection) |
| Operating Temperature (Discharge) | -4°F to 140°F (-20°C to 60°C) |
| Operating Temperature (Charge) | 32°F to 140°F (0°C to 60°C) |
| Waterproof Rating | IP67 |
| Item Weight | 23.37 Pounds (approx.) |
| Dimensions (L x W x H) | 10.23in x 6.61in x 8.46in (approx.) |
| Terminal Type | M8 |
9. Warranty and Support
9.1 Warranty Information
Specific warranty terms and conditions for the yeagulch 12V 100Ah Mini LiFePO4 Lithium Battery are typically provided at the point of purchase or on the manufacturer's official website. Please retain your proof of purchase for warranty claims. For detailed warranty information, please refer to the documentation included with your product or contact the seller directly.
9.2 Customer Support
For technical assistance, troubleshooting, or any questions regarding your yeagulch battery, please contact your retailer or the manufacturer's customer support channels. Contact information can usually be found on the product packaging or the official yeagulch website.