1. Introduction
This manual provides comprehensive instructions for the safe and efficient use of your SKKSource AC Adapter Charger. This adapter is specifically designed to be compatible with Lefant M501-B, T700, and T800 robot vacuum cleaners, ensuring reliable power delivery for charging and operation.
2. Safety Information
Your SKKSource AC Adapter Charger is manufactured with high-quality materials and incorporates multiple smart features to ensure safety and protect your devices. Please read and adhere to the following safety guidelines:
- Over Charge Protection: Prevents battery damage from excessive charging.
- Over Voltage Protection: Safeguards against harmful voltage fluctuations.
- Short-circuit Protection: Automatically cuts power in case of a short circuit.
- Over Current Protection: Protects against excessive current draw.
- Over Temperature Protection: Prevents overheating of the adapter.
The charger is certified with CE and FCC standards, indicating compliance with health, safety, and environmental protection requirements.
General Safety Precautions:
- Do not expose the adapter to water, rain, or excessive moisture.
- Avoid disassembling or modifying the adapter.
- Do not use the adapter if the casing or cable is damaged.
- Ensure proper ventilation around the adapter during use; do not cover it.
- Keep out of reach of children.

3. Setup Instructions
Follow these steps to properly connect your AC adapter to your robot vacuum cleaner:
- Ensure your Lefant robot vacuum cleaner is powered off before connecting the adapter.
- Locate the charging port on your robot vacuum cleaner.
- Connect the barrel connector of the SKKSource AC adapter's output cable firmly into the charging port of the vacuum cleaner.
- Plug the AC adapter's input power cord into a standard 100-240V AC wall outlet.
- Verify that the charging indicator light on your vacuum cleaner activates, signaling that it is receiving power.

4. Operating Instructions
Once properly connected, the SKKSource AC Adapter Charger will automatically begin charging your robot vacuum cleaner. The adapter is designed for continuous use during charging cycles. For optimal performance and longevity, unplug the adapter from both the wall outlet and the vacuum cleaner when it is not in use for extended periods.
5. Maintenance
To ensure the longevity and proper functioning of your AC adapter, follow these maintenance guidelines:
- Keep the adapter clean and free from dust and debris. Use a soft, dry cloth for cleaning.
- Avoid bending, twisting, or kinking the power cord excessively, as this can damage internal wires.
- Store the adapter in a cool, dry place away from direct sunlight and extreme temperatures.
- Do not place the adapter on soft surfaces or in poorly ventilated areas during operation, as this can lead to overheating.
6. Troubleshooting
If you encounter issues with your AC adapter, please refer to the following troubleshooting steps:
- Adapter not charging:
- Ensure both the barrel connector and the power plug are securely connected.
- Test the wall outlet with another device to confirm it has power.
- Verify that the adapter's DC output and tip size are compatible with your robot vacuum cleaner.
- Adapter overheating:
- Ensure there is adequate ventilation around the adapter. Unplug it and allow it to cool down.
- If overheating persists or the adapter emits smoke or unusual odors, immediately discontinue use and contact customer support.
7. Specifications
Key technical specifications for the SKKSource AC Adapter Charger:
- Input Voltage: 100-240V AC
- Connector Type: Barrel
- Main Power Connector Type: 2 Pin
- Color: Black
- Material: Composite, Metal, Plastic
- Power Source: Corded Electric
- Certifications: CE
- Manufacturer: Shenzhen Sunshine Technological Co., Ltd

8. Warranty
This SKKSource AC Adapter Charger comes with a 24-month warranty from the date of purchase. This warranty covers manufacturing defects and ensures the product meets its specified performance. Please retain your proof of purchase for warranty claims.
9. Support
If you have any questions, concerns, or require assistance with your SKKSource AC Adapter Charger, please do not hesitate to contact our customer support team. We are committed to providing prompt and helpful assistance.
Please refer to your purchase documentation or the retailer's website for specific contact information.