21ft Tesla NACS Extension Cord – 50A / 240V, Up to 12kW for Level 1 & Level 2 Charging

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The 21ft Tesla NACS Extension Cord is a high-power EV charging extension designed specifically for Tesla vehicles and Tesla charging equipment. Rated for 50 Amps at 240V (up to 12kW), this extension cable provides a safe and practical way to extend the reach of your existing charger—ideal for garages, driveways, and outdoor installations where the original cable length falls short.

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Professional Overview & Technical Analysis

Extend Your Tesla Charging Reach (21 ft)

This NACS extension cable safely extends the distance between your charger and vehicle by 21 feet, making it easier to:

  • Reach vehicles parked further away
  • Adapt to challenging garage layouts
  • Avoid costly charger relocation or rewiring

It is compatible with Tesla Model 3, Model Y, Model S, and Model X, providing a seamless extension without modifying your existing setup.


High-Power Capability for Daily Charging

  • Maximum output: 50A at 240V
  • Power capacity: Up to 12kW
  • Supports Level 1 and Level 2 AC charging

This ensures the extension cable can handle high-powered home charging without becoming a performance bottleneck, assuming the upstream charger and circuit are properly rated.


Compatibility with Tesla Charging Equipment

Designed for Tesla’s NACS connector, this extension cord works with:

  • Tesla Wall Connector (High-Powered Wall Connectors)
  • All generations of Tesla Destination Chargers
  • Tesla Mobile Connectors

Important note:
The button on the handle does NOT open the Tesla charge port door. However, it can release/unplug the connector from the vehicle once charging is complete.


Safety-Focused Construction

  • IP66 waterproof rating – suitable for indoor and outdoor use
  • High-strength TPE jacket, compliant with UL 94 V-0 flame-retardant standards
  • 5-micron silver-plated copper conductors for excellent conductivity and reduced resistance

This design supports reliable operation in daily use, including outdoor environments exposed to rain, dust, and temperature variation.


Built for Real-World Use

  • Flexible yet rugged cable design for repeated coiling and handling
  • Durable strain relief at connection points
  • Includes a protective carrying case for organized storage and transport

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Frequently Asked Questions (FAQ)

Q1: Which Tesla models is this extension cord compatible with?

It is compatible with Tesla Model 3, Model Y, Model S, and Model X using NACS charging connectors.

Q2: Does this extension work with the Tesla Wall Connector?

Yes. It is designed for High-Powered Tesla Wall Connectors, Destination Chargers, and Mobile Connectors.

Q3: Will this slow down my charging speed?

No. The cable supports up to 50A / 12kW. Actual charging speed depends on your charger, circuit breaker, and vehicle limits.

Q4: Can the button open the Tesla charge port door?

No. The button does not open the charge port door, but it does allow you to unplug the connector from the vehicle.

Q5: Is this extension cord safe for outdoor use?

Yes. With an IP66 rating and rugged insulation, it is suitable for outdoor charging when used with properly rated equipment.

Q6: Is a warranty included?

Yes. EVDANCE provides a 1-year warranty, along with 24/7 customer support for usage or quality issues.


Who Should Choose This Tesla NACS Extension Cord?

  • Tesla owners needing extra charging reach without rewiring
  • Homeowners with garage or driveway layout limitations
  • Users of Wall Connectors, Destination Chargers, or Mobile Connectors
  • Drivers who want a portable, high-power extension solution for travel or backup use

For Tesla drivers seeking a reliable way to extend charging distance while maintaining high power and safety standards, this 21ft NACS Extension Cord offers a practical, well-engineered solution.

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