Introduction
This manual provides essential instructions for the safe and effective use of your MEGALITH Smartwatch K66 Magnetic Charging Cable. Please read this manual thoroughly before using the product and retain it for future reference.
Product Overview
The MEGALITH K66 Magnetic Charging Cable is designed to provide a convenient and secure charging solution for compatible smartwatches. It features a magnetic connector for easy attachment and a USB-A plug for power input.
Key Features:
- Compatibility: Universally compatible with smart devices that support magnetic charging.
- Secure Charging: Integrated voltage regulator and PTC protection to prevent overcurrent damage.
- Portable Design: 100 cm (39.4 inch) cable length, lightweight and convenient for travel.
- Durable Construction: Made from high-quality ABS plastic and TPE cables for stability and longevity.
- Fast Charging: Efficiently recharges your smartwatch, reducing waiting time.

Image 1: The MEGALITH K66 Magnetic Charging Cable, coiled, showcasing its USB-A connector and magnetic charging puck.
Important Safety Information
- Do not expose the charging cable to water or excessive moisture.
- Avoid extreme temperatures.
- Do not attempt to disassemble or modify the cable.
- Keep out of reach of children.
- Use only with compatible devices and power sources (e.g., standard USB wall adapters, computer USB ports).
- Disconnect the charger from the power source when not in use.
Setup Instructions
Connecting the Charger
- Identify a suitable USB power source, such as a wall adapter, power bank, or computer USB port.
- Insert the USB-A end of the MEGALITH K66 charging cable into the USB power source.
- Ensure the connection is firm and secure.

Image 2: A close-up view of the USB-A connector and the magnetic charging puck, highlighting the 4-pin design.
Operating Instructions
Charging Your Smartwatch
- With the USB-A end connected to a power source, bring the magnetic charging puck close to the charging contacts on your smartwatch.
- The magnetic puck will automatically align and attach to the smartwatch's charging port.
- Confirm that your smartwatch indicates it is charging (e.g., a charging icon or battery percentage increase).
- Once charging is complete, gently detach the magnetic puck from your smartwatch.

Image 3: A detailed view of the magnetic charging puck, showing the two charging pins and the magnetic contact points.
Care and Maintenance
- Cleaning: Use a soft, dry cloth to wipe the cable and connectors. Do not use liquid cleaners or abrasive materials.
- Storage: Store the cable in a cool, dry place away from direct sunlight and extreme temperatures. Avoid tightly coiling or bending the cable excessively to prevent damage.
- Inspection: Periodically inspect the cable for any signs of wear, fraying, or damage. Discontinue use if any damage is observed.
Troubleshooting
| Issue | Possible Cause | Solution |
|---|---|---|
| Smartwatch not charging | Loose connection; incompatible smartwatch; faulty power source; dirty charging contacts. | Ensure the USB-A plug is fully inserted. Verify smartwatch compatibility. Try a different USB power source. Clean smartwatch charging contacts. |
| Slow charging | Low-power USB source; background apps on smartwatch. | Use a higher-power USB adapter (e.g., 5V/1A). Close unnecessary apps on your smartwatch. |
| Magnetic connection is weak | Debris on contacts; incorrect alignment. | Clean the magnetic contacts on both the cable and smartwatch. Ensure correct alignment. |
Product Specifications
| Feature | Detail |
|---|---|
| Brand | MEGALITH |
| Model Number | 2025 (K66 Charger) |
| Compatible Devices | Smartwatch (4-pin, 7.62mm pitch magnetic charging) |
| Special Feature | Wireless, Travel-friendly |
| Recommended Uses | Charging |
| Color | Black |
| Connector Type | Male to Female (USB-A to Magnetic Puck) |
| Number of Items | 1 |
| Product Dimensions (L x W x H) | 62 x 0.6 x 0.6 cm (approx. 24.4 x 0.24 x 0.24 inches) |
| Item Weight | 14 grams |
Warranty and Support
MEGALITH products are manufactured with quality and reliability in mind. For specific warranty information, please refer to the packaging or the retailer's terms of sale at the time of purchase. For technical support or inquiries, please contact your point of purchase or visit the official MEGALITH website for customer service options.