TEMGO 48V (51.2V) 100Ah LiFePO4 Battery User Manual

1. Product Overview

The TEMGO 48V (51.2V) 100Ah Lithium Iron Phosphate (LiFePO4) Battery is designed for various applications including golf carts, solar energy storage, RVs, and off-grid systems. It features an integrated 200A Battery Management System (BMS) with Bluetooth connectivity and low-temperature protection.

Key features include:

• Advanced Bluetooth Monitoring & 200A Smart BMS: Provides real-time status via a mobile application, offering protection against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes.
• Long Service Life: Built with A-grade LiFePO4 cells, delivering over 5000 deep cycles at 80% Depth of Discharge (DOD).
• High Discharge Capability & Stable Power Output: Delivers 200A continuous discharge (600A peak for 3 seconds) with up to 10.24kW maximum output.
• Scalable Energy Storage & Solar Ready: Supports up to 4 batteries in parallel, expanding usable energy to 20.48kWh. Compatible with solar systems.
• Reliable & Durable Construction: Stable LiFePO4 chemistry for safe and efficient performance.

Image 1: Internal components and key features of the TEMGO 48V 100Ah LiFePO4 Battery, highlighting 5000+ deep cycles, 5.12kWh usable energy, 200A built-in BMS, 2C rate Grade A cells, and 10.24kW max continuous load power. It also shows icons for protection against over-charge, over-discharge, overcurrent, short circuit, and high-temperature cutoff.

2. Safety Information

Read all safety instructions before installation and operation. Failure to follow these instructions may result in electric shock, fire, or other serious injury.

• Always wear appropriate personal protective equipment (PPE), including safety glasses and insulated gloves, when handling batteries.
• Do not short-circuit the battery terminals.
• Do not expose the battery to fire, excessive heat, or direct sunlight.
• Do not immerse the battery in water or other liquids.
• Ensure proper ventilation during charging and discharging.
• Use only compatible chargers and inverters designed for LiFePO4 batteries.
• Keep the battery away from children and pets.
• In case of fire, use a Class D fire extinguisher. Water can exacerbate LiFePO4 fires.
• Do not attempt to open, disassemble, or repair the battery. Contact qualified personnel for service.

3. Package Contents

Verify that all items are present in the package:

• TEMGO 48V (51.2V) 100Ah LiFePO4 Battery
• User Manual (this document)
• M8 bolts for terminal connections

4. Setup and Installation

4.1 Physical Dimensions and Terminal Connections

The battery dimensions are approximately 10.59"D x 20.47"W x 8.66"H. The battery uses M8 bolts for terminal connections. Ensure sufficient space for installation and proper ventilation.

Image 2: Diagram illustrating the dimensions of the TEMGO 48V 100Ah LiFePO4 Battery (10.59 in, 20.47 in, 8.66 in) and the M8 bolt terminal (8mm, 16mm). The battery weighs 87.1 lbs.

4.2 Parallel Connection

The TEMGO 48V 100Ah LiFePO4 battery supports parallel connection of up to 4 units to expand energy storage. This allows for a total usable energy of up to 20.48kWh. Ensure all batteries are at a similar state of charge before connecting in parallel. Use appropriate cabling and fusing for parallel configurations.

Image 3: Illustration showing multiple TEMGO 48V 100Ah LiFePO4 batteries connected in parallel for a solar system, indicating a total of 20.48kWh usable energy. Examples of power consumption for 1000W, 300W, and 25W loads are provided.

Image 4: Diagram depicting a parallel connection setup for the TEMGO 48V 100Ah LiFePO4 batteries within a solar system, showing connections to solar panels, an inverter, and an MPPT controller. It highlights compatibility with most solar charge controllers and inverters.

4.3 Bluetooth App Setup

The battery features integrated Bluetooth for real-time monitoring and control via a mobile application. Download the official TEMGO battery app from your device's app store. Follow the in-app instructions to connect to your battery. The app allows you to view battery voltage, current, State of Charge (SOC), temperature, and remotely enable/disable charging and discharging.

Image 5: Screenshot of the TEMGO Bluetooth mobile application interface, demonstrating real-time monitoring of battery status, charge/discharge control, and simple operation.

5. Operating Instructions

5.1 Charging and Discharging

The built-in 200A BMS provides comprehensive protection during charging and discharging cycles. This includes protection against overcharge, over-discharge, overcurrent, short circuit, and temperature extremes. The battery also features low-temperature protection, which intelligently cuts off charging below 32°F (0°C) and discharging below -4°F (-20°C) to prevent damage and ensure longevity.

Image 6: Visual representation of the 200A BMS protection features, including safeguards against overcharging, over-discharging, over-current, overheating, and short circuits.

Image 7: Diagram illustrating the low-temperature cut-off protection, showing that discharging stops below -4°F, charging stops below 32°F, and the recommended storage temperature is above 32°F.

5.2 Bluetooth Monitoring

Utilize the Bluetooth app to monitor the battery's performance in real-time. This includes checking the current voltage, charge/discharge current, remaining capacity (SOC), and internal temperature. The app also allows for remote control functionalities, such as enabling or disabling charging and discharging, which can be useful for system management.

6. Maintenance

LiFePO4 batteries require minimal maintenance compared to lead-acid batteries. Follow these guidelines for optimal performance and longevity:

• Regular Inspection: Periodically check the battery terminals for corrosion or loose connections. Clean terminals as needed.
• Charge Level: Avoid prolonged storage at extremely low or high states of charge. For long-term storage, charge the battery to approximately 50% SOC.
• Temperature: Operate and store the battery within the recommended temperature ranges. The built-in low-temperature protection helps manage charging in cold conditions.
• Cleaning: Keep the battery clean and free from dust and debris. Use a dry cloth for cleaning.

7. Troubleshooting

If you encounter issues with your TEMGO LiFePO4 battery, consider the following troubleshooting steps:

• Battery Not Charging:
  • Check all cable connections for tightness and proper polarity.
  • Ensure the charger is compatible with LiFePO4 batteries and is functioning correctly.
  • Verify that the ambient temperature is above 32°F (0°C) for charging, due to the low-temperature protection feature.
  • Check the Bluetooth app for any BMS fault codes or protection activations (e.g., over-discharge protection).
• Battery Not Discharging/No Power Output:
  • Confirm all load connections are secure.
  • Check the battery's State of Charge (SOC) via the Bluetooth app. The battery may have entered over-discharge protection if the voltage is too low.
  • Ensure the ambient temperature is above -4°F (-20°C) for discharging.
  • Look for any BMS fault codes or protection activations in the app (e.g., overcurrent protection, short circuit protection).
• Bluetooth Connectivity Issues:
  • Ensure Bluetooth is enabled on your mobile device.
  • Make sure you are within range of the battery.
  • Restart the Bluetooth function on your device or restart the app.
  • If multiple batteries are present, ensure you are attempting to connect to the correct one.

For persistent issues, contact TEMGO customer support.

8. Specifications

9. Official Product Videos

10. Warranty and Support

TEMGO is committed to providing reliable power solutions. While specific warranty details are not provided in this manual, TEMGO offers 5-year technical support and 24-hour customer service. For warranty claims, technical assistance, or any product-related inquiries, please contact TEMGO customer support through their official channels.

TEMGO has over 10 years of expertise in RV and off-grid power solutions, with local warehouses in the US to support customer needs.