KEPWORTH 12V 100Ah Lithium Iron LiFePO4 Deep Cycle Battery User Manual

1. Introduction

This manual provides essential information for the safe and efficient use of your KEPWORTH 12V 100Ah Lithium Iron Phosphate (LiFePO4) Deep Cycle Battery. This battery is designed for various applications including RVs, solar power systems, home storage, and outdoor camping, offering a long cycle life and reliable performance.

2. Safety Information

Please read and understand all safety instructions before operating the battery. Failure to follow these instructions may result in serious injury or damage to the battery.

• After receiving the battery, please fully charge the battery first.
• Avoid short-circuiting the battery terminals.
• Recommend to use a charger that supports LiFePO4 battery or a special LiFePO4 battery charger. Incorrect charging type may not charge the battery fully.
• Avoid the battery being near fire or soaked in water.
• Store the battery indoors and recharge it regularly every 3 months for long-term storage.
• Charge the battery within 12 hours if the battery is totally discharged.
• Make sure the battery is properly wired to the load. Do not reverse the positive and negative connections.
• Before connecting the load, please make sure the power supported by the battery can meet the load power demand.

The label on the battery provides critical instructions for initial use, charging, storage, and connection to ensure safe operation and longevity of the battery.

3. Product Overview

The KEPWORTH 12V 100Ah LiFePO4 battery features a robust design with a built-in Battery Management System (BMS) for enhanced protection and performance. It is significantly lighter than traditional lead-acid batteries, making it ideal for portable and mobile applications.

Key Features:

• Built-In Smart BMS: Protects against overcharge, over-discharge, over-current, short circuit, and includes temperature protection. BMS cuts off charging below -20°C (-4°F) and above 70°C (158°F).
• Deep Cycle Performance: Offers 2000-5000 cycles, providing a 10-year lifetime, which is significantly longer than lead-acid batteries.
• Lightweight Design: Approximately 70% lighter than a comparable lead-acid battery, facilitating easier installation and transport.
• Versatile Mounting: Can be safely mounted in any position due to its sealed, acid-free construction.
• Low Self-Discharge: Less than 3% self-discharge rate, ensuring power retention during storage.

Components:

• Positive (+) and Negative (-) Terminals: For main power connections.
• 2 x USB 5V 2.1A Output: For charging small electronic devices.
• Aviation Plug Charging Port: Dedicated port for charging the battery.
• LED Power Switch: Controls the power to the USB output ports only.

The integrated BMS provides comprehensive protection, including overcharge, over-discharge, short circuit, overcurrent, overheating, and general temperature protection, ensuring the battery's safety and longevity.

4. Setup

Proper setup is crucial for the safe and optimal performance of your KEPWORTH LiFePO4 battery.

4.1 Initial Charging

Upon receiving the battery, it is recommended to fully charge it before its first use. Use a compatible LiFePO4 charger connected to the aviation plug charging port or the main terminals.

4.2 Connecting to a Load

Ensure all connections are secure and correctly polarized (positive to positive, negative to negative). Verify that the load's power requirements do not exceed the battery's capabilities.

4.3 Series Connection

This battery can be connected in series for higher voltage applications, up to a maximum of two batteries. Consult a qualified technician for series connections to ensure proper wiring and safety.

4.4 Solar Charge Controller Settings

If using a solar charge controller with this 12V LiFePO4 battery, configure the controller with the following recommended settings:

• Charge Voltage: 14.6V
• Over Voltage Disconnect Voltage: 15V
• Float Charging Voltage: 13.8V
• Low Voltage Disconnect Voltage: 10.8V
• Low Voltage Reconnect Voltage: 12.4V

This diagram illustrates how the battery terminals can be used for both charging and discharging, and the recommended settings for a solar charge controller.

5. Operating Instructions

The KEPWORTH LiFePO4 battery is designed for ease of use and reliable power delivery.

5.1 General Operation

• Ensure all connections are tight and secure before applying power.
• The battery's flat discharge curve maintains voltage above 12.8V for up to 95% of its capacity, providing consistent power.
• The LED power switch on the side of the battery controls only the USB output power.

5.2 Charging

• Use a charger specifically designed for LiFePO4 batteries.
• Maximum charging current should be less than 50A.
• Charging temperature range: 0°C to 60°C (32°F to 140°F). The BMS will cut off charging below -20°C (-4°F) and above 70°C (158°F).

5.3 Discharging

• Continuous discharging current: 0.8C to 1C (80A to 100A for a 100Ah battery).
• Operating temperature range for discharging: -20°C to 60°C (-4°F to 140°F).

6. Maintenance

Proper maintenance ensures the longevity and performance of your LiFePO4 battery.

• Regular Recharging: For long-term storage, recharge the battery every 3 months.
• Deep Discharge Recovery: If the battery is totally discharged, recharge it within 12 hours.
• Storage Conditions: Store the battery indoors in a cool, dry place, away from direct sunlight, heat sources, and moisture.
• Terminal Inspection: Periodically check battery terminals for corrosion or loose connections. Clean as necessary.

7. Troubleshooting

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

• Battery Not Charging:
  • Ensure the charger is compatible with LiFePO4 batteries.
  • Check all charging cable connections for tightness and proper polarity.
  • Verify the ambient temperature is within the charging range (0°C to 60°C). The BMS will prevent charging outside this range.
• No Power Output:
  • Check main terminal connections to the load for tightness and correct polarity.
  • Ensure the battery is sufficiently charged. The BMS will disconnect output if the voltage drops too low.
  • If using USB outputs, ensure the LED power switch is turned on.
  • The BMS may have activated a protection mode (e.g., over-discharge, over-current, short circuit). Disconnect the load, wait a few minutes, and try reconnecting.
• Reduced Performance/Capacity:
  • Ensure the battery is fully charged before use.
  • Verify that the load's power demand does not consistently exceed the battery's continuous discharge rate.
  • Check for any signs of physical damage to the battery or terminals.

If problems persist after attempting these steps, please contact KEPWORTH customer support.

8. Specifications

Detailed technical specifications for the KEPWORTH 12V 100Ah LiFePO4 Deep Cycle Battery.

9. Warranty and Support

KEPWORTH stands behind the quality of its products.

• Battery Warranty: This battery comes with a 5-year warranty.
• Service Life: Designed for an industry-leading 10-year service life.
• Customer Service: KEPWORTH offers 24-hour responsive customer service.

For warranty claims, technical assistance, or any inquiries, please contact KEPWORTH customer support through the retailer where the product was purchased or visit the official KEPWORTH store online: KEPWORTH Store.