1. Introduction and Overview
This manual provides essential information for the safe and efficient use of your Redodo 2 Pack 24V 100Ah LiFePO4 Deep Cycle Lithium Batteries. These batteries are designed for various applications including solar home systems, trolling motors, marine, off-grid power, and UPS backup.
Key features include:
- Automotive Grade Cells for enhanced stability and energy density.
- Long Lifespan: Up to 10 years and 4000 deep cycles at 100% DOD.
- Lightweight Design: Approximately 1/5 the weight of comparable lead-acid batteries.
- Built-in 100A Battery Management System (BMS) for comprehensive protection.
- Expandable Power System: Can be configured up to 4P2S for a 51.2V 400Ah system (20.48kWh).

Image: Two Redodo 25.6V 100Ah LiFePO4 batteries, highlighting their compact design.
2. Setup and Installation
2.1 Unpacking and Inspection
Upon receiving your Redodo LiFePO4 batteries, carefully inspect the packaging for any signs of damage. Open the package and verify that all components are present:
- 2 x 25.6V 100Ah LiFePO4 Batteries
If any items are missing or damaged, contact Redodo customer support immediately.
2.2 Terminal Specifications
The batteries are equipped with M8 terminals. Ensure you use appropriate connectors and tools for secure connections.

Image: A detailed view of the battery terminal, indicating M8 size and dimensions (L20.95in, W8.15in, H8.5in).
2.3 Connection Configurations
These 24V 100Ah batteries can be connected in series and/or parallel to achieve higher voltage or capacity. The batteries support configurations up to 4P2S, allowing for a maximum 51.2V 400Ah system (20.48kWh).
- Parallel Connection (P): Connect positive to positive and negative to negative to increase capacity (Ah) while maintaining the same voltage (V).
- Series Connection (S): Connect the positive of one battery to the negative of the next to increase voltage (V) while maintaining the same capacity (Ah).
Important: Always ensure batteries are at a similar state of charge before connecting them in parallel or series. Consult a qualified electrician for complex installations.

Image: Visual representation of battery configurations (1P, 2P/2S, 2P2S, 3P2S, 4P2S) and their corresponding energy capacities (2.56kWh to 20.48kWh).
3. Operating Instructions
3.1 Charging the Battery
Redodo LiFePO4 batteries offer versatile charging options:
- LiFePO4 Charger: Use a dedicated LiFePO4 charger with a charging current between 0.2C to 0.5C.
- Solar Panel with Controller: Connect to a solar panel system with a compatible charge controller.
- Alternator with DC Charger: Suitable for vehicle charging systems.
- Generator with AC Charger: For charging from a generator.
Caution: Do not use lead-acid battery chargers that are not specifically designed for LiFePO4 batteries, as this can damage the battery.

Image: An example setup for RV power, showing solar panel, MPPT controller, battery, and inverter.
3.2 Discharge and Application
The built-in 100A BMS supports a maximum continuous discharge current of 100A and a surge discharge of up to 400A for 1 second. This allows the battery to power various high-demand appliances.
Example run times for common appliances with a 2560Wh battery:
- Microwave (800W): Approximately 3.2 hours
- Coffee Maker (800W): Approximately 3.2 hours
- Fridge (50W): Approximately 51.2 hours
- Heater (1000W): Approximately 2.5 hours
- Air-conditioner (2000W): Approximately 1.28 hours

Image: Estimated appliance run times based on 2560Wh battery capacity.
Video: An overview of the 24V 100Ah LiFePO4 lithium battery, demonstrating its features and applications, including its use in trolling motors and RVs. This video highlights the battery's double energy capacity, powerful BMS, long lifespan, lighter weight, and ability to power various appliances.
4. Maintenance
Redodo LiFePO4 batteries are designed for minimal maintenance. However, following these guidelines will ensure optimal performance and longevity:
- Storage: For long-term storage, charge the battery to approximately 50% state of charge. The self-discharge rate is very low (only 3%).
- Cleaning: Keep battery terminals clean and free of corrosion. Use a dry cloth to wipe down the battery case.
- Temperature: Operate and store the battery within recommended temperature ranges to maximize lifespan.
- Regular Checks: Periodically check connections to ensure they are secure.
5. Troubleshooting
The built-in 100A BMS provides comprehensive protection against common battery issues. If you experience any problems, refer to the following:
| Issue | Possible Cause | Solution |
|---|---|---|
| Battery not charging | Over-discharge protection activated, charger incompatibility, loose connections. | Check connections. Ensure charger is LiFePO4 compatible. If deeply discharged, a specialized charger may be needed to reactivate. |
| Battery not discharging (no power output) | Over-current, short-circuit, or high-temperature protection activated. | Reduce load. Check for short circuits in wiring. Allow battery to cool down if overheated. |
| Reduced capacity or runtime | Aging, extreme operating temperatures, improper charging. | Ensure proper charging parameters. Avoid extreme temperatures. If battery is old, consider replacement. |
The BMS protects against:
- Over-charge Protection
- Over-discharge Protection
- Over-current Protection
- Short-circuit Protection
- High-temperature Protection

Image: Internal view of the battery showcasing the 100A BMS and A-grade cells, along with a list of protections.
For issues not listed or if problems persist, please contact Redodo customer support.
6. Specifications
| Specification | Value |
|---|---|
| Brand | Redodo |
| Model | R24V100-100-N-2pack |
| Nominal Voltage | 25.6V |
| Rated Capacity | 100Ah |
| Energy | 2560Wh |
| Max. Continuous Charge/Discharge Current | 100A |
| Surge Discharge Current | 400A (for 1s) |
| Lifespan | Up to 10 years / 4000+ cycles @100% DOD |
| Item Weight | 45.6 Pounds (per battery) |
| Product Dimensions (D x W x H) | 8.5"D x 20.95"W x 8.15"H |
| Terminal Type | M8 |
7. Warranty and Support
Redodo is committed to providing high-quality products and excellent customer service.
7.1 Warranty Information
Redodo LiFePO4 batteries typically come with a 5-year guarantee. For detailed warranty terms and conditions, please refer to the official Redodo website or contact customer support.
7.2 Customer Support
For any inquiries, technical assistance, or warranty claims, please visit the official Redodo Store or contact their customer service team. They offer 24-hour response and support.
- Official Redodo Store: Redodo Store on Amazon
- Contact Information: Refer to the Redodo Store page for the most current contact methods (email, phone, etc.).

Image: Redodo's commitment to product lifespan, guarantee, and customer support.





