LOSSIGY 48100-2
LOSSIGY 48V 100Ah LiFePO4 Lithium Golf Cart Battery User Manual
Model: 48100-2
1. Introduction
This manual provides essential information for the safe and efficient use of your LOSSIGY 48V 100Ah LiFePO4 Lithium Golf Cart Battery. Please read all instructions carefully before installation and operation.
2. Safety Information
Always prioritize safety when handling batteries. Lithium Iron Phosphate (LiFePO4) batteries are generally safer than other lithium-ion chemistries, but proper handling is still crucial.
- Do not short-circuit the battery terminals.
- Do not expose the battery to fire or extreme heat.
- Do not immerse the battery in water.
- Use only the provided or approved charger.
- Ensure proper ventilation during charging and operation.
- Wear appropriate personal protective equipment (PPE) such as gloves and eye protection during installation.
- Keep out of reach of children.
- This battery supports parallel connection only, up to 4 batteries. Do not connect in series.
3. Package Contents
Verify that all items are included in your package:
- LOSSIGY 48V 100Ah LiFePO4 Battery
- 58.4V 18A Smart Charger
- LCD Mobile Monitor
- Battery Cables (if included in specific package)
- User Manual

Image: Main product components including the battery, charger, and monitor.
4. Product Overview
The LOSSIGY 48V 100Ah LiFePO4 battery is designed for high-performance applications such as golf carts, RVs, and solar systems. It features a robust Battery Management System (BMS) and includes a smart charger and mobile monitor for convenience.
Key Features:
- Class A LiFePO4 Cells: Ensures long cycle life (4,000+ cycles) and stable performance.
- Integrated 200A BMS: Provides protection against overcharging, over-discharging, overcurrent, short circuit, and temperature extremes. Supports automatic cell balancing.
- High Power Output: 10.24kW continuous output with 1000A peak current.
- Lightweight Design: Approximately 83 lbs, significantly lighter than lead-acid batteries of similar capacity.
- IP65 Waterproof Rating: Offers protection against dust and water splashes.
- Bluetooth Connectivity: Monitor battery status in real-time via a mobile app.
- LCD Mobile Monitor: Provides real-time battery information directly on your golf cart dashboard.
- Fast Charging: The 58.4V 18A charger can fully charge the battery in approximately 6 hours.

Image: Diagram illustrating the various protection features of the integrated Battery Management System (BMS).
5. Setup and Installation
Follow these steps for proper installation of your LOSSIGY battery, charger, and monitor.
5.1 Battery Installation
- Remove Old Batteries: Disconnect and carefully remove existing lead-acid batteries from your golf cart. Note the wiring configuration before removal.
- Prepare Battery Compartment: Clean the battery compartment thoroughly. Ensure it is dry and free of debris.
- Position New Battery: Place the LOSSIGY LiFePO4 battery into the compartment. Its compact size (20.47 x 10.59 x 8.66 inches) and lighter weight (83 lbs) should allow for easier placement.
- Secure Battery: Use appropriate straps or mounting hardware to secure the battery firmly in place to prevent movement during operation.
- Connect Battery Cables: Connect the positive (+) and negative (-) terminals of the battery to your golf cart's electrical system. Ensure connections are tight and secure.

Image: Front view of the LOSSIGY 48V 100Ah LiFePO4 Battery, showing terminals and carrying handles.
Video: A guide demonstrating the installation process for a 48V Lithium Golf Cart Battery. This video shows the steps for replacing old batteries and securing the new lithium battery.
Video: An unboxing and installation guide for a TEMGO Golf Cart Battery, showing the components included and the installation steps.
5.2 LCD Mobile Monitor Installation
- Choose Location: Select a convenient and visible location on your golf cart's dashboard for the LCD monitor.
- Mount Monitor: Secure the monitor using the provided mounting hardware.
- Connect Wiring: Connect the monitor's wiring harness to the designated port on the battery. Ensure all connections are firm.

Image: The LCD Mobile Monitor showing real-time battery information, including charge percentage and voltage.
Video: This video demonstrates the installation and use of the LCD display for the 36/48V Golf Cart LiFePO4 Battery, showing how to connect it and navigate its monitoring modes.
6. Operating Instructions
6.1 Initial Charge
Before first use, fully charge the battery using the provided 58.4V 18A smart charger. Connect the charger to the battery and then to a power outlet. The charger will indicate when charging is complete (approximately 6 hours for a full charge).
6.2 Using the LCD Monitor
The LCD monitor displays real-time battery information such as voltage, current, temperature, and state of charge. Refer to the monitor's specific instructions for navigating its various display modes.
6.3 Mobile App Monitoring
Download the LOSSIGY mobile app (available for iOS and Android) and connect to your battery via Bluetooth. The app provides detailed battery data, including individual cell voltages, cycle index, and protection status.
7. Maintenance
- Regular Inspection: Periodically check battery terminals for corrosion and ensure connections are tight.
- Cleaning: Keep the battery clean and dry. Wipe with a damp cloth if necessary. Do not use harsh chemicals.
- Storage: If storing the battery for an extended period, ensure it is charged to approximately 50-70% and stored in a cool, dry place. Avoid extreme temperatures.
- Parallel Connection: If connecting multiple batteries in parallel, ensure they are of the same voltage and capacity. It is recommended to connect up to 4 batteries in parallel. Do not connect in series.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Charger not connected properly; charger fault; battery BMS in protection mode. | Check all charger connections. Verify charger functionality. Check mobile app for BMS protection status and follow instructions to reset if applicable. |
| Low power output | Low state of charge; loose connections; motor/controller issue. | Charge the battery fully. Inspect battery cables and terminals for secure connections. Consult golf cart manufacturer for motor/controller diagnostics. |
| LCD monitor not displaying | Loose connection to battery; monitor fault. | Ensure the monitor's cable is securely connected to the battery. If problem persists, contact customer support. |
| Battery overheating | Excessive load; poor ventilation; internal fault. | Reduce load on the battery. Ensure adequate airflow around the battery. If temperature remains high, disconnect and contact customer support immediately. |
9. Specifications
| Feature | Value |
|---|---|
| Nominal Voltage | 48V |
| Capacity | 100Ah |
| Energy Output | 10.24kWh (5120Wh) |
| BMS Continuous Current | 200A |
| Peak Current | 1000A (3-5s) |
| Cycle Life | 4000+ cycles |
| Operating Temperature Range | 0°C - 60°C |
| Dimensions (L x W x H) | 20.47 x 10.59 x 8.66 inches |
| Weight | 83 lbs |
| Waterproof Rating | IP65 |
| Charger Output | 58.4V 18A |

Image: Detailed dimensions of the LOSSIGY 48V 100Ah LiFePO4 Battery, including length, width, and height.
10. Warranty and Support
LOSSIGY provides a 5-year warranty for this product. For any technical assistance, installation guidance, or warranty claims, please contact LOSSIGY customer support. They offer 24-hour online professional technical support.
Refer to the official LOSSIGY website or your purchase documentation for specific contact details.
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