Introduction
This manual provides comprehensive instructions for the Redodo 29.2V 20A LiFePO4 Battery Charger. Designed for 24V Lithium Iron Phosphate (LiFePO4) batteries, this charger offers efficient and safe charging with advanced protection features. Please read this manual thoroughly before use to ensure proper operation and longevity of your battery and charger.
Safety Information
- Always connect the charger to the battery before connecting to AC power.
- Ensure the charger's voltage and current ratings match your battery specifications.
- Do not charge non-LiFePO4 batteries with this charger.
- Operate in a well-ventilated area.
- Avoid short-circuiting the output terminals.
- Keep away from water, moisture, and flammable materials.
- Do not disassemble or modify the charger.
- In case of abnormal operation, disconnect from power immediately.
Product Overview and Package Contents
The Redodo 29.2V 20A LiFePO4 Battery Charger is designed for efficient and safe charging of 24V LiFePO4 batteries. It features a robust design and multiple protection functions.
Image: Contents of the Redodo 29.2V 20A LiFePO4 Battery Charger package, including the charger unit, AC power cord, instruction manual, and Anderson connector with M8 screws and insulating caps.
What's in the Box:
- Redodo 29.2V 20A LiFePO4 Battery Charger
- AC Power Cord
- User Manual
- Anderson Connector with M8 Size Screws and Insulating Caps
Features
- Fast Charging: Delivers 20A output, significantly reducing charging time for large capacity 24V LiFePO4 batteries. For example, a 24V 100Ah battery can be fully charged in approximately 5 hours.
- Safety Protection Functions: Equipped with multiple safeguards including over temperature protection, output short-circuit protection, reverse polarity connection protection, and output over-voltage protection.
- Exclusive Pre-charge Mode: Activates deeply discharged or long-unused batteries, extending their lifespan.
- High Reliability: Constructed with military and industrial-grade components and advanced circuit design for durability and low failure rate.
Image: A graphic illustrating the Redodo 29.2V 20A charger's fast charging capability, showing it charges a battery to 100% in 5 hours compared to other 20A chargers taking longer.
Image: An illustration showing the Redodo charger connected to a battery, highlighting its multiple safety protection functions: output short circuit protection, high temperature protection, output over-voltage protection, and reverse polarity connection protection.
Image: A diagram demonstrating the exclusive pre-charge mode, showing the charger activating a dead battery (0V in protection state) and gradually increasing its voltage towards a fully charged state (26.66V).
Specifications
| Feature | Specification |
|---|---|
| Product Dimensions | 4.73 x 8.76 x 2.76 inches (120 x 222.5 x 70 mm) |
| Item Weight | 5.5 pounds (2.5 kg) |
| Input Voltage | 100-240V AC |
| Output Voltage | 29.2V DC |
| Output Current | 20A |
| Compatibility | 24V LiFePO4 Batteries |
Setup and Connection
Follow these steps to properly connect your Redodo LiFePO4 Battery Charger:
- Prepare the Battery: Ensure your 24V LiFePO4 battery is in a stable location and its terminals are clean.
- Connect to Battery: Connect the DC output cable of the charger to the battery terminals. Ensure correct polarity: red to positive (+), black to negative (-). If using the Anderson connector, ensure it is securely attached.
- Connect to AC Power: Plug the AC input cable into the charger, then plug the other end into a standard 100-240V AC power outlet.
- Verify Connection: Check the LED indicators on the charger to confirm proper connection and charging status.
Image: The Redodo 29.2V 20A LiFePO4 Battery Charger connected to a Redodo 25.6V 100Ah LiFePO4 battery, illustrating the connection points and the compact size of the charger.
Operating Instructions
The charger operates automatically once connected. Observe the LED indicators for charging status:
Image: Close-up of the Redodo 29.2V 20A LiFePO4 Battery Charger showing its plaggable connection and the LED indicator panel with labels for 'Fully Charged', 'Standby', 'Charging', and 'Fault'.
LED Indicator Status:
- Green (Solid): Battery is fully charged.
- Green (Flashing): Charger is in standby mode.
- Red (Solid): Battery is charging.
- Red (Flashing): Charger malfunction or protection function activated.
Charging Process (Three Stages):
- Pre-charge Stage (T1): The charger trickles current to activate a protected or deeply discharged battery, preparing it for the main charging cycle and extending its service life.
- Constant Current (CC) Stage (T2): The charger delivers a constant current of 20A to the battery until it reaches a predetermined voltage level.
- Constant Voltage (CV) Stage (T3): Once the battery voltage reaches the target, the charger maintains a constant voltage while gradually reducing the charging current to prevent overcharging until the battery is fully charged.
Maintenance
- Keep the charger clean and free from dust and debris.
- Store the charger in a dry, cool place when not in use.
- Regularly inspect cables and connectors for any signs of damage.
- Do not block the ventilation openings on the charger.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Charger not turning on | No AC power; loose connections; faulty outlet. | Check AC power source and connections. Try a different outlet. |
| Red LED flashing (Fault) | Reverse polarity; short circuit; over-voltage; over-temperature. | Disconnect from power. Check battery connections for correct polarity. Inspect cables for damage. Allow charger to cool if hot. |
| Battery not charging | Incorrect battery type; battery deeply discharged (0V); poor connection. | Ensure battery is 24V LiFePO4. The pre-charge mode should activate 0V batteries. Recheck all connections. |
Official Product Video
Video: An unboxing and initial impression video for the Redodo 12V 100Ah LiFePO4 Battery and 20A Charger. This video showcases the physical product and its components.
Warranty and Support
Redodo offers a quality guarantee and high reliability for its products. All lithium battery chargers come with 24-hour one-on-one customer service and lifetime technical support.
For any questions or assistance, please contact Redodo customer service. You can also visit the official Redodo store for more information: Redodo Store on Amazon.
