1. Introduction
This manual provides essential instructions for the safe and effective use of your RDSJ 6800mAh replacement battery. Please read this guide thoroughly before installation and operation to ensure optimal performance and longevity of your battery and robot vacuum cleaner.
2. Product Overview
The RDSJ 6800mAh Li-ion replacement battery is designed to provide reliable power for compatible robot vacuum cleaners. It features advanced protection mechanisms to ensure safe operation.
Key Features:
- Battery Type: Li-ion
- Voltage: 14.4V/14.8V
- Capacity: 6800mAh / 80.64Wh
- Cells: 8-Cell configuration
- Fast Charging: Designed for efficient charging, reducing downtime.
- Integrated Protection: Includes over-charge, over-discharge, over-current, over-temperature, short-circuit, and over-voltage protection.


3. Compatibility
This replacement battery is compatible with the following robot vacuum cleaner models:
- Cecotec Conga 5090
- Cecotec Conga 5091
- Cecotec Conga 5490
- Cecotec Conga 6090
- Cecotec Conga 7090
- Whirlpool T9 Robot Vacuum Cleaner

4. Safety Instructions
WARNING: Failure to follow these safety instructions may result in fire, electric shock, injury, or damage to the product and property.
- Do not disassemble, crush, puncture, or dispose of the battery in fire.
- Do not use the battery if it shows signs of swelling, bulging, leakage, or any other damage.
- Avoid exposing the battery to high-temperature environments.
- Do not use the battery if it has been immersed in water.
- Charge the battery only with the specified charger within a temperature range of 32-104°F (0-40°C).
- Keep the battery out of reach of children and pets.
- Dispose of used batteries according to local regulations.
Integrated Protection Features:
This battery is equipped with multiple protection circuits for enhanced safety:
- Over-Charge Protection
- Over-Discharge Protection
- Over-Current Protection
- Over-Temperature Protection
- Short-Circuit Protection
- Over-Voltage Protection

5. Installation
The RDSJ replacement battery is designed for easy installation, fitting precisely into your compatible robot vacuum cleaner.
Installation Steps:
- Power Off: Ensure your robot vacuum cleaner is completely powered off and disconnected from its charging base.
- Access Battery Compartment: Locate and open the battery compartment on your robot vacuum cleaner. Refer to your vacuum cleaner's original manual for specific instructions if needed.
- Remove Old Battery: Carefully disconnect the old battery's connector and remove it from the compartment.
- Verify Connector: Before inserting the new battery, confirm that its connector type matches your original battery's connector.
- Install New Battery: Connect the new RDSJ battery to the vacuum cleaner's port. Ensure the connection is secure. Place the battery into the compartment.
- Close Compartment: Securely close the battery compartment cover.
- Initial Charge: Place the robot vacuum cleaner on its charging base for an initial full charge before first use.
A screwdriver and brush are included to assist with the installation process and general maintenance.


6. Charging
For optimal performance and battery life, follow these charging guidelines:
- Always use the original or a compatible charger provided with your robot vacuum cleaner.
- Charge the battery within the recommended temperature range of 32-104°F (0-40°C).
- Allow the battery to fully charge before its first use after installation.
- Lithium batteries are designed for fast charging, minimizing the time required to reach full capacity.
7. Maintenance and Storage
Proper maintenance and storage can extend the lifespan of your battery:
- Regular Use: For best results, use your robot vacuum cleaner regularly.
- Avoid Deep Discharge: Do not allow the battery to completely drain frequently. Recharge it when the vacuum cleaner indicates low battery.
- Storage: If storing the battery for an extended period, charge it to approximately 50-60% capacity and store it in a cool, dry place away from direct sunlight and extreme temperatures.
- Self-Discharge: This battery is designed for low self-discharge, retaining approximately 80% of its capacity after one year of storage under ideal conditions.

8. Troubleshooting
If you encounter issues with your new battery, consider the following:
- Battery Not Charging: Ensure the battery is correctly installed and the vacuum cleaner is properly seated on its charging base. Verify the charger is functioning.
- Reduced Runtime: A new battery may require a few charge-discharge cycles to reach its full capacity. If runtime remains significantly low, ensure the battery is fully charged and check for any obstructions in the vacuum cleaner that might increase power consumption.
- Vacuum Cleaner Not Powering On: Double-check the battery connection. If the issue persists, it may not be battery-related; consult your vacuum cleaner's manual.
- Error Codes: Refer to your robot vacuum cleaner's original manual for specific error codes and their solutions.
If troubleshooting steps do not resolve the issue, please contact customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Battery Type | Li-ion |
| Nominal Voltage | 14.4V / 14.8V |
| Capacity | 6800mAh / 80.64Wh |
| Number of Cells | 8-Cell |
| Product Dimensions | 6 x 2 x 7 inches |
| Item Weight | 7.1 ounces |
| Manufacturer | Shenzhen Banhui Technology Co., Ltd. |
| Recommended Use | Robot Vacuum Cleaner |
| Protection Features | Over-Charge, Over-Discharge, Over-Current, Over-Temperature, Short-Circuit, Over-Voltage |
10. Warranty and Support
For warranty information or technical support, please refer to the purchase platform or contact the seller directly. Ensure you have your purchase details readily available.





