Introduction
This manual provides essential information for the safe and effective use of your FYIOGXG replacement battery. This battery is designed for compatibility with ETA 2218 9000 Ergo, 2218 Ergo, and Ergo 2218 devices, replacing part numbers ETA 2420 0270 and ETA424200270.
Please read this manual thoroughly before installation and use to ensure optimal performance and longevity of your battery.
Safety Information
Observe the following safety precautions to prevent damage to the battery, device, or personal injury:
- Compatibility Check: Before purchase and installation, carefully verify the model number of your device and the part number of your original battery to confirm compatibility.
- Charger Quality: Do not use low-quality third-party adapter chargers. Using unapproved chargers can shorten the battery's life and pose safety risks.
- Installation: Ensure the battery connector is properly and securely connected to your device during installation.
- Physical Damage: Do not attempt to disassemble, open, or service the battery pack. Do not crush, puncture, or short external contacts.
- Heat Exposure: Do not dispose of the battery in fire or water. Do not store the battery above 60°C (140°F).
- Label Integrity: The warranty is void if the battery label is removed.
- Charging Voltage: The limited charge voltage for this battery is 16.8V ± 0.05V.
Setup
Follow these steps for proper battery installation:
- Device Preparation: Ensure your device is powered off and disconnected from any power source before beginning installation.
- Access Battery Compartment: Refer to your device's original user manual for instructions on how to safely open the battery compartment.
- Remove Old Battery: Carefully disconnect and remove the old battery.
- Install New Battery: Insert the FYIOGXG replacement battery into the compartment. Ensure the connector is aligned correctly and securely plugged into the device's port.
- Secure Compartment: Close and secure the battery compartment according to your device's instructions.
For visual guidance, many installation videos specific to your device model are available online. Search for "ETA 2218 Ergo battery replacement" for detailed instructions.

Image: Close-up view of the battery's connector, showing the four-pin design for secure attachment to the device.
Operating
After installation, the battery is ready for use. The new fully decoded chip ensures it functions identically to the original battery.
- Initial Charging: For best performance, a new battery should undergo 2 or 3 complete charge and discharge cycles. This helps calibrate the battery and optimize its capacity.
- Normal Use: Use your device as usual. The battery provides reliable power for your ETA 2218 Ergo series device.

Image: The FYIOGXG battery shown in context with a robot vacuum cleaner, illustrating its intended use in powering compatible devices.
Maintenance
Proper maintenance extends the life of your battery:
- Charging Practices: Always use a compatible and high-quality charger. Avoid overcharging or completely draining the battery frequently.
- Storage: If storing the battery for an extended period, ensure it is charged to about 50-70% and stored in a cool, dry place, away from direct sunlight and extreme temperatures (below 60°C / 140°F).
- Cleaning: Keep battery contacts clean and free from dust or debris.
Troubleshooting
If you encounter issues with your battery, consider the following:
- Battery Not Charging:
- Ensure the charger is functioning correctly and is compatible with your device.
- Verify the battery connector is securely attached.
- Check for any visible damage to the battery or charging port.
- Short Battery Life:
- Perform 2-3 complete charge/discharge cycles to calibrate the battery.
- Ensure you are using a high-quality charger.
- Review device settings for power-saving options.
- Device Not Powering On:
- Confirm the battery is correctly installed and fully charged.
- Test with another known-good battery if available, or check the device itself for issues.
Specifications
| Feature | Specification |
|---|---|
| Model Number (on battery) | CS-ETA424VX |
| Part Numbers (compatible) | ETA 2420 0270, ETA424200270 |
| Capacity | 2600mAh / 37.44Wh |
| Voltage | 14.4V |
| Battery Cell Type | Lithium Polymer |
| Dimensions | 72.00 x 37.30 x 37.30mm |
| Weight | 200g |
| Certifications | ISO9001 |

Image: Top view of the battery, clearly showing the model number, part number, rating, and safety warnings printed on the label.
Warranty and Support
Your FYIOGXG replacement battery comes with a 1-Year Warranty from the date of purchase, covering manufacturing defects.
For any questions, technical assistance, or warranty claims, please contact our customer support. We aim to provide an email reply within 24 hours.
Please have your purchase details and battery model information ready when contacting support.