1. Introduction
Thank you for choosing the AOLITHIUM 51.2V 100Ah LiFePO4 Lithium Battery. This manual provides essential information for the safe and efficient operation, installation, and maintenance of your battery system. Our batteries are designed for deep cycle applications, offering a long lifespan and reliable power for various uses including RVs, marine vessels, solar energy storage, and camping.
2. Safety Information
Please read and understand all safety instructions before installing or operating the battery. Failure to follow these instructions may result in serious injury, property damage, or voiding of the warranty.
- The battery is equipped with a sophisticated Battery Management System (BMS) that provides protection against overcurrent, short circuit, overcharge, overdischarge, and overvoltage.
- Six temperature sensors monitor battery cell, environment, and power MOS temperatures to ensure safe operation within a range of -4°F to 140°F.
- Important: This LiFePO4 lithium battery cannot be used as a starting battery.
- Important: Do not use this battery for golf cart applications.
- For higher power battery pack configurations, consult AOLITHIUM first to prevent accidents.
- Ensure proper ventilation when installing the battery.
- Always use appropriate personal protective equipment (PPE) when handling batteries.
- Do not disassemble, puncture, or damage the battery.
3. Product Overview
The AOLITHIUM 51.2V 100Ah LiFePO4 battery is a high-performance energy storage solution. It consists of 16 Class A prismatic cells (3.2V 100Ah each) connected in series, providing a stable 5.12kWh output energy and supporting up to 5.12kW load power draws.
Figure 3.1: AOLITHIUM 51.2V 100Ah LiFePO4 Battery Pack (2-Pack shown).
3.1 Key Features
- High Quality Cells: Utilizes Class A prismatic cells for reliable performance.
- Advanced BMS: Comprehensive protection against various electrical faults.
- Integrated LCD Screen: Displays real-time voltage, current, temperature, and State of Charge (SOC) without external tools.
- Deep Cycling Capability: Over 4000 cycles at 85% Depth of Discharge (DOD) and 6000 cycles at 80% DOD.
- Extended Lifespan: Designed for a lifespan of 15+ years.
- Robust Construction: Features safer metal materials for anticollision, fireproof, and explosion-proof properties.
Figure 3.2: Product dimensions and safety features.
Figure 3.3: Internal structure and current ratings.
Figure 3.4: Wide operating temperature range.
4. Setup and Installation
The AOLITHIUM 51.2V 100Ah battery is designed for easy installation, especially when compared to traditional series connections of smaller batteries.
4.1 Parallel Expansion
The battery supports parallel expansion to achieve higher power capacities. You can extend the power up to 20.48kWh by connecting multiple units in parallel.
Figure 4.1: Parallel expansion capability.
4.2 Connection Advantages
Using a single 51.2V 100Ah battery simplifies installation compared to connecting four 12V 100Ah batteries in series. This reduces space requirements, wiring complexity, and the need for voltage balancing.
Figure 4.2: Simplified installation with 51.2V battery.
The package includes complimentary AK01-Long Cable (x1), AK01-Short Cable (x1), and AK01-Rack (x2) for convenient setup.
5. Operation
Once installed, the battery is ready for operation. The integrated LCD screen provides real-time monitoring of key parameters.
5.1 LCD Display
The LCD screen on the front panel displays:
- Voltage
- Current
- Temperature
- State of Charge (SOC)
This allows for visual monitoring of the battery's status during charging and discharging cycles.
5.2 Typical Applications
The 51.2V 100Ah battery is suitable for various applications requiring stable and long-lasting power.
Figure 5.1: Appliance runtimes in an RV setting.
6. Maintenance and Storage
LiFePO4 batteries require minimal maintenance compared to other battery types. However, proper storage is crucial for maximizing their lifespan.
6.1 Long-Term Storage
For optimal long-term storage, ensure the battery is stored within the recommended temperature range and at a partial state of charge (e.g., 50-70% SOC). LiFePO4 batteries exhibit excellent charge retention.
Figure 6.1: Charge retention comparison after 3 months of storage.
7. Troubleshooting
This section provides general guidance for common issues. Due to the integrated BMS, many potential issues are automatically managed. If you encounter problems not addressed here, please contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging/discharging | BMS protection activated (e.g., over-discharge, over-charge, over-temperature, short circuit). | Check connections. Allow battery to cool down if over-temperature. Remove load/charger and re-attempt connection. Consult manual for specific BMS reset procedures if applicable. |
| LCD screen not displaying | Battery is deeply discharged or power connection issue. | Attempt to charge the battery. Verify power connections to the display. |
| Reduced capacity/runtime | Aging, extreme operating conditions, or improper charging. | Ensure charging parameters are correct. Avoid consistently operating at extreme temperatures. If issues persist, contact support. |
8. Specifications
Detailed technical specifications for the AOLITHIUM 51.2V 100Ah LiFePO4 Battery.
| Attribute | Value |
|---|---|
| Brand | AOLITHIUM |
| Model | AL-51.2V100Ah-2P |
| Item Model Number | 51.2V 100Ah |
| Manufacturer Part Number | DE-51.2V100Ah-2Pack |
| Voltage | 51.2V |
| Capacity | 100Ah |
| Energy | 5.12kWh |
| Max Load Power | 5.12kW |
| Amperage | 100 Amps |
| Cycle Life | >4000 cycles @ 85% DOD, >6000 cycles @ 80% DOD |
| Lifespan | 15+ years |
| Operating Temperature | -4°F to 140°F |
| Item Weight | 23.2 pounds |
| Terminal Type | Marine Terminal |
9. Warranty and Support
AOLITHIUM batteries are built for longevity, with an expected lifespan of over 15 years and extensive cycle life. For any technical assistance, warranty claims, or further inquiries, please contact AOLITHIUM customer support through the official brand store or your point of purchase.
Visit the AOLITHIUM Store on Amazon for more information and support resources.
