GEARit Level 2 EV Charger Extension Cord Review
The GearIT Level 2 EV charger extension cord is a premium solution for extending your NEMA 14-50 level 2 EV charger to reach your NEMA 14-50 outlet. Built with 6AWG conductors, it supports up to 9.6 kW (40A at 240V), ensuring safe, high-power charging. Available in multiple lengths, it’s weatherproof, durable, and ideal for J1772 and NACS chargers.
When it comes to Level 2 EV charger extension cords, the GearIT Level 2 EV Charger Extension Cord stands out as one of the best EV charger extension cords for extending the reach of your plug-in Level 2 EV charger.
The NEMA 14-50 EV charger extension cord supports Level 2 EV charging speeds of up to 9.6 kW (40 amps at 240V), which is the maximum charging speed allowed for plug-in Level 2 chargers on a NEMA 14-50 circuit. This limitation follows the NEC 80% rule, ensuring safe and efficient charging without overloading the circuit.
The GEARit Level 2 EV charger extension cord is available in multiple lengths—10, 15, 30, 50, 75, and even 100 feet—this NEMA 14-50 EV charger extension cord is built to handle the demands of high-powered continuous loads of Level 2 EV charging on a 50 amps circuit. With 6AWG conductors, it supports 50 amps at 240V, making it ideal for high amperage requirements of up to 40 amps continuous loads of plug-in J1772 Level 2 chargers, and NACS Level 2 EV chargers which use a NEMA 14-50 outlet for power supply.
We recommend this extension cord to city dwellers, apartment owners, and renters who have a home EV charger and don’t have direct access to a NEMA 14-50 home EV charger outlet near their point of use. It’s a practical solution for extending power from a patio, deck, or garage NEMA 14-50 outlet to your EV, making home Level 2 charging more accessible. However, we advise against using it in areas prone to theft or where it could create obstacles on sidewalks or walkways.
Key Features
- 6/3, 8/1 STW AWG Gauge Wiring – Three 6AWG conductors for power and one 8AWG ground wire ensure safe and efficient handling of high-voltage, continuous Level 2 EV charging loads.
- 40-Amp EV Charger Support – Supports high-powered 240V 40 amps Level 2 EV charger on a 240V 50amps circuit.
- Multiple Lengths Available – Choose from 10, 15, 30, 50, 75, or 100 feet to fit your needs.
- Weatherproof STW Jacket – Built for durability in all weather conditions.
- Bright Green Exterior – Enhances visibility when installed indoors and outdoors preventing tripping hazards.
- Compatible with J1772 & NACS EV Chargers – Works with J1772 & NACS EV chargers that feature a NEMA 14-50 plug.
How It Works
The GearIT extension cord allows users to safely extend their charging reach by connecting directly from a NEMA 14-50 outlet to a plug-in Level 2 EV charger. By using true 6AWG copper conductors, the cord ensures that power is delivered efficiently without overheating or voltage drops. Simply plug the male NEMA 14-50P end into a dedicated 240V outlet, and connect the female NEMA 14-50R end to your EV charger.
This extension cord is ideal for homeowners with a garage or driveway setup where the charging station might not be within reach of the vehicle. The weatherproof heavy-duty jacket ensures it remains safe and functional in both indoor and outdoor EV charging environments, providing reliable power delivery regardless of the conditions.
Circuit Setup & Compatibility
The GearIT Level 2 EV Charger Extension Cord is engineered for compatibility with a dedicated 50-amp EV charger circuit, supporting a 240V 40A Level 2 EV charger. Its true 6AWG copper conductors provide efficient power transmission while minimizing voltage drop, ensuring a stable and high-performance charging experience for both home and portable use.
The GearIT Level 2 EV Charger Extension Cord circuit wiring diagram above illustrates the correct setup for extending a 40-amp Level 2 EV charger. In this configuration, the 40-amp EV charger is connected to the GearIT Level 2 EV Charger Extension Cord, which is then plugged into a NEMA 14-50 outlet. The NEMA 14-50 outlet is wired to a dedicated 240V double-pole 50-amp circuit breaker using 6AWG hot and neutral wires and an 8AWG ground wire, following NEC (National Electrical Code) standards for safe and efficient EV charging.
At the electrical panel, a dedicated 50-amp double-pole breaker is installed to deliver 240V power, protecting the 40-amp EV charger following the NEMA 80/20 rule for continuous load circuits. The circuit is wired using 6AWG copper conductors for the hot (L1 & L2) and neutral wires, while an 8AWG ground wire ensures optimized EV charger grounding. The GearIT Level 2 EV Charger Extension Cord also features 6AWG hot wires and an 8AWG ground wire, maintaining a consistent wire gauge throughout the circuit. This uniformity reduces voltage drops, heat buildup, and electrical resistance, improving overall charging efficiency and safety.
The wiring connections follow NEC standards:
- Two hot wires (black and red): Carry 240V power to the NEMA 14-50 outlet.
- Neutral wire (white): Provides a return path for the circuit.
- Ground wire (green or bare copper): Enhances safety in case of a fault.
The inset NEMA 14-50 wiring diagram provides a closer look at the NEMA 14-50 outlet terminal wiring, detailing how:
- L1 and L2 hot wires connect to the hot terminals to supply 240V power.
- The neutral wire is secured to the neutral terminal.
- The ground wire is attached to the ground terminal.
For a step-by-step guide, check out our expert guide on NEMA 14-50 EV charger outlet installation.
By ensuring that all connections are properly secured and that wire gauges match across the circuit and extension cord, this setup optimizes power delivery, prevents overheating, and ensures long-term reliability for Level 2 EV charging applications.
GEARit Level 2 EV Charger Extension Cord Wire Gauge
The GearIT Level 2 EV Charger Extension Cord is built with 6/3, 8/1 STW AWG gauge wiring, ensuring safe and efficient power delivery for high-powered Level 2 EV charging. According to NEC (National Electrical Code) regulations, wiring for continuous loads must match the breaker size to maintain circuit integrity. When adding an extension cord, the wiring must be consistent from the breaker to the load.
A NEMA 14-50 outlet is rated for 50 amps, requiring a dedicated 50-amp circuit breaker for proper protection. NEC guidelines specify that a 50-amp breaker must use 6AWG conductors for L1, L2, and Neutral and an 8AWG conductor for ground. The GearIT extension cord follows this standard, ensuring the wiring matches both the circuit and breaker requirements. This not only complies with NEC safety codes but also optimizes current flow, minimizes power loss, and prevents overheating.
In contrast, competitors such as the Inteset Level 2 EV Charger Extension Cord use thinner 8AWG conductors, which can result in higher resistance, voltage drops, and heat buildup when used on high-amperage circuits. Choosing the GearIT extension cord ensures a stable, high-performance charging experience without compromising safety.
The 6/3, 8/1 STW construction means it features three 6AWG conductors (L1, L2, Neutral) and one 8AWG conductor (ground). The STW jacket is service-grade (S), thermoplastic insulated (T), and weather-resistant (W), making it highly durable and suitable for both indoor and outdoor EV charging applications.
For in-depth guidance, check out our expert guide on choosing the ideal EV charger wire gauge for your setup.
GEARit Level 2 EV Charger Extension Cord Multiple Length Options
The GearIT Level 2 EV Charger Extension Cord is available in 10, 15, 30, 50, 75, and 100 feet, offering flexibility to match various charging setups. While it may be tempting to opt for a longer cable for added reach, we strongly recommend selecting the shortest length necessary for your application. Longer EV charging cables inherently increase voltage drop, heat buildup, and electrical resistance, which can affect charging efficiency and overall safety, by choosing the appropriate length, you ensure optimal power delivery, reduced energy loss, and improved long-term performance of your EV charging system.
Built for Tough Conditions
This durable and weather-resistant NEMA 14-50 EV charger extension cord is suitable for both indoor and outdoor installations. Its UL-listed weatherproof jacket protects against moisture, dust, and wear. In our EV charger tests, the extension cord remained cool even while delivering 40 amps of Level 2 EV charging continuous loads over an extended period. Temperature checks after use showed only a 5-10°c rise, demonstrating its superior heat dissipation and safety.
One important consideration is that the EV charger extension cable has limited pliability. As a heavy-duty 240V extension cord designed for electric car chargers, its industrial-grade construction makes it inherently stiff. While it may take a few days to fully straighten out after storage, it becomes flexible enough for practical use. Additionally, its bright green exterior enhances visibility, reducing the risk of tripping hazards in low-light conditions.
Compatible NEMA 14-50 EV Chargers
We rigorously tested multiple NEMA 14-50 EV chargers with the GEARit Level 2 EV Charger Extension Cord to verify performance, safety, and efficiency. Our results confirm that these chargers operate without voltage drops or cable overheating, ensuring stable and reliable Level 2 charging. Below is a list of recommended NEMA 14-50 EV chargers for use with this extension cord.
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