What is the Electric Vehicle (EV) Extension Cords?

Electric vehicles (EVs) have gained popularity recently due to swift technological advancements and increasing environmental awareness. As more people switch to EVs, there is an increasing need for accessible and convenient charging solutions. The EV extension cord is one such solution that EV owners find incredibly useful. 

An EV charger extension cord helps connect an EV charger to a distant power outlet when charging your EV. Therefore, whether you are a seasoned EV owner or considering making the switch, educating yourself more about electric car charger extension cords is crucial. 

But how do you identify the right EV extension cord for your car?

If you are seeking information about EV charging equipment, you have come to the right place. 

In this article, we explore the world of EV charging solutions. We will discuss an electric car charger extension cord, its types and uses, how to select the right cord, and safety considerations. We will also look at portable and home chargers, the difference between the two, and more. Please keep reading to find out more!

What Is a Home and Portable Charger 

There are two main types of EV chargers: portable chargers and home chargers. Home chargers, or level 2 chargers, are usually installed in a specific location like a driveway or garage. They offer a more permanent EV charging solution. 

Portable or level 1 chargers are compact and can be carried and used anywhere. Thus, portable chargers offer a convenient charging on-the-go option.

The Difference Between Home and Portable Chargers 

Both portable and home chargers charge your electric vehicle similarly. However, they differ in installation, charging capacity, and portability.

A home charger provides a dedicated charging point at a specific location. Thus, the charging station offers you a consistent and reliable charging experience. For instance, you can charge your EV overnight.

On the other hand, a portable charger offers convenience and flexibility. A portable charger allows you to charge your EV anywhere, provided you can access an electric outlet. Therefore, a portable charger is handy, especially if you travel long distances.

Moreover, home chargers provide faster charging speeds than portable chargers, making them ideal for daily charging. A portable charger is suitable for emergency top-up charging, especially when no charging station is nearby.  

What Is an EV Extension Cord? 

An extension cord is a length of a flexible electrical cord with a plug on one end and a load fitting on the other. Its role is to extend the reach of an electrical outlet, allowing you to connect electrical devices to a power source that is further away. 

An electric car charger extension cord is a specially designed electrical cord for EV charging. This cord helps bridge the gap between the power source and your EV charger, adding flexibility to where you can charge your electric car.  

When Should You Not Use an EV Extension Cord

While extension cords can help enhance your EV charger's reach, they can sometimes be unsafe.  

For instance, you should not use a damaged extension cord or one not rated for outdoor use. Such cords pose a safety hazard, including fire. 

Similarly, an EV extension cable that is too long or doesn't match your EV charger's power requirements can cause overheating and damage your car. 

How to Choose an EV Extension Cord  

When selecting an EVSE extension cord, you should consider certain factors to ensure efficiency and safety. They include:


Opt for special EV extension cables certified by reputable standardization organizations. The certifications ensure they meet specified quality and safety standards. 


Select a heavy-duty extension cord with an appropriate gauge for your EV charger's power requirements. In the US, cord thickness is distinguishable by AWG (American Wire Gauge) or gauge. 

Smaller gauge numbers mean thicker wires, meaning they can transmit more power over a longer distance and vice versa. For instance, the recommended gauge for level 1 charging is 12-gauge, while level 2 charging requires a 10-gauge extension cord.

Outdoor Rating 

If you intend to use the cord outdoors, ensure you select an outdoor-rated one. These cords are designed to withstand conditions like moisture exposure.


Consider a long enough cord to reach your desired charging point without stretching or excessive slack. Longer extension cords can lead to a voltage drop, causing overheating and reducing charging efficiency. Also, shorter extension cords may cause insecure connections, increasing the risk of safety hazards.  

Extension Cords Safety 

Like other electrical equipment, ensuring safety while using EV extension cables to charge your car is crucial. Here are some safety tips to consider:

  • Do not use damaged or frayed cords to prevent fire hazard 
  • Ensure you use the right cords rated for outdoor use
  • Do not connect multiple devices to the cord to avoid overloading 
  • Always unplug and keep the cord safe when not in use
  • Keep the cord away from sharp objects, water, and heat sources to prevent damage 
  • Carefully inspect your cords for any signs of damage or wear before use
  • Replace damaged EV charger extension cords; do not attempt to repair
  • Do not connect more than one electric car charger extension cord, as this will increase the risk of potential safety hazards 
  • Ensure your EV extension cable is fully uncoiled when in use to lower the risk of overheating 


EV charger extension cords can offer convenience and flexibility when charging your EV, whether on the go or at home. By selecting the right electric vehicle extension cord for your car, knowing when and how to use it, and taking safety precautions, you can make the most of your EV charging experience.  

We hope these tips have helped you identify a suitable electric vehicle extension cord for your car charging needs.

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