ECO-WORTHY 12V 50Ah LiFePO4 Battery and 4A Charger User Manual

1. Introduction

This manual provides essential information for the safe and efficient use of your ECO-WORTHY 12V 50Ah LiFePO4 rechargeable battery and its accompanying 4A lithium battery charger. Please read this manual thoroughly before installation and operation to ensure optimal performance and longevity of your product.

Image 1.1: ECO-WORTHY 12V 50Ah LiFePO4 Battery and 4A Charger. This image displays the main components included: the 12.8V 50Ah LiFePO4 battery and the 4A smart lithium battery charger with alligator clips and power cord.

2. Safety Information

Always observe the following safety precautions to prevent injury or damage to the battery and charger:

• Use only the provided 4A lithium battery charger or a compatible LiFePO4 charger. Using an incompatible charger can cause damage or fire.
• Do not short-circuit the battery terminals.
• Do not disassemble, puncture, or modify the battery.
• Keep the battery away from fire, heat sources, and direct sunlight.
• Avoid exposing the battery to water or other liquids.
• Ensure proper ventilation during charging and operation.
• Do not use the battery as a starter battery for vehicles.
• If the battery is damaged or leaking, do not handle it and dispose of it properly according to local regulations.

3. Product Features

The ECO-WORTHY 12V 50Ah LiFePO4 battery offers several advanced features:

• Long Cycle Life: Provides over 3000 cycles, with a potential lifespan of more than 10 years.
• High Energy Density: Significantly higher energy density compared to lead-acid batteries, offering more power in a lighter package.
• Lightweight Design: Approximately 1/3 the weight of a comparable lead-acid battery.
• Built-in Battery Management System (BMS): Protects against overcharge, over-discharge, over-temperature, short circuit, and ensures cell balance.
• Robust Construction: Features a durable ABS casing for excellent impact resistance.
• Wide Application: Suitable for 30-55 lb thrust trolling motors, solar power systems, RVs, and emergency lighting.

Image 3.1: Comparison of LiFePO4 and Lead-Acid Batteries. This graphic illustrates the advantages of the LiFePO4 battery over traditional lead-acid batteries in terms of cycle life, lifespan, and weight.

4. Setup and Initial Charging

4.1 Unpacking

Upon receiving your ECO-WORTHY battery, carefully unpack all components. The package should include the 12V 50Ah LiFePO4 battery and the 4A smart lithium battery charger. Note that your order may be shipped in two separate packages, which may arrive at different times.

4.2 Connecting the Charger

1. Ensure the battery terminals are clean and free of debris.
2. Connect the red (positive) alligator clip of the charger to the positive (+) terminal of the battery.
3. Connect the black (negative) alligator clip of the charger to the negative (-) terminal of the battery.
4. Plug the charger into a standard AC power outlet (90-130V AC).

The 4A smart multi-in-one charger is designed to efficiently charge the ECO-WORTHY 12V 50Ah LiFePO4 battery in approximately 12.5 hours from a fully discharged state. The charger also functions as a battery maintainer, indicating when charging is needed due to low pressure or capacity loss.

Image 4.1: 4A 12V Battery Charger Specifications. This image details the technical specifications of the included 4A 12V battery charger, including input voltage, charging power, and dimensions.

Image 4.2: Lithium Battery Charging Warning. This image emphasizes the importance of using a special charger for lithium batteries and proper connection techniques, advising against wrapping wires directly around terminals.

5. Operating Instructions

5.1 General Usage

The ECO-WORTHY 12V 50Ah LiFePO4 battery is versatile and can be used in various applications:

• Trolling Motors: Ideal for 30-55 lb thrust trolling motors.
• Solar Power Systems: Provides reliable energy storage for off-grid or grid-tied solar setups.
• RV Battery: Powers appliances and systems in recreational vehicles.
• Emergency Lighting: Suitable for backup power in emergency situations.

Important: This battery is not designed for use as a starter battery for internal combustion engines.

Image 5.1: ECO-WORTHY LiFePO4 Battery in a fishing boat. This image shows the battery being used to power equipment on a fishing trip, demonstrating its application for trolling motors and marine electronics.

5.2 Battery Management System (BMS)

The integrated BMS provides comprehensive protection for the battery, ensuring safe and stable operation. The BMS will automatically cut off power in the event of:

• Overcharge Protection
• Over-discharge Protection
• High Temperature Protection
• Short Circuit Protection
• Discharge Overcurrent Protection

Image 5.2: Smart Battery Protection System (BMS). This diagram illustrates the various protections offered by the built-in Battery Management System, including over-discharge, overcharge, overheating, short current, over current, and over voltage.

6. Maintenance

6.1 Regular Charging

For optimal battery health, ensure the battery is charged regularly, especially after significant discharge. The included 4A charger features a 6-step automatic charging process (Desulfation, Soft start, Adaptive, Bulk, Absorption, Maintenance) to optimize charging and prolong battery life.

Image 6.1: 6 Steps Automatic Charging Process. This graph illustrates the different stages of the charger's automatic charging cycle, showing how voltage and current are managed for efficient and safe charging.

6.2 Long-Term Storage

If the battery is to be left unused for a prolonged period, remove it from the instrument or application. Charge the battery to 50%-80% of its capacity. Recharge the battery for at least one hour every month to prevent deep discharge. Do not leave the battery in a deficit state (below 5% power) for extended periods, as this can cause irreversible damage.

7. Troubleshooting

If you encounter issues with your ECO-WORTHY battery, consider the following:

• Battery Not Charging: Ensure the charger is properly connected to both the battery and the AC outlet. Verify that the charger is functioning correctly. Check for any visible damage to the charger or cables.
• Low Capacity/Short Runtime: Ensure the battery is fully charged before use. Verify that the load connected to the battery does not exceed its continuous discharge current rating. Extreme cold temperatures can temporarily reduce battery performance; allow the battery to warm up if operating in very cold conditions.
• BMS Protection Triggered: If the battery suddenly stops providing power, the BMS may have activated a protection feature (e.g., over-discharge, overcurrent). Disconnect the load, allow the battery to rest, and then attempt to recharge it. The 4A charger is designed to restart and charge LiFePO4 batteries after a BMS 0V protection has been triggered.
• Physical Damage: Inspect the battery and charger for any signs of physical damage. Do not use damaged components.

If problems persist, please contact ECO-WORTHY customer support for assistance.

8. Specifications

Image 8.1: Product Size and Weight. This image provides a visual representation of the battery's dimensions and weight, including the M6 screw size for terminals.

9. Warranty and Support

ECO-WORTHY products are designed for reliability and performance. For specific warranty details, please refer to the warranty card included with your product or visit the official ECO-WORTHY website. If you require technical assistance, troubleshooting, or have questions regarding your battery and charger, please contact ECO-WORTHY customer support through their official channels.