No, you should never extend an EV charging cable using a regular extension cord or by adding a cable between the charging station and the vehicle. EV charging cables are engineered to handle high electrical loads safely and must comply with strict international standards such as IEC 62196 and IEC 61851. Using an extension cord not designed for EV charging can lead to overheating, voltage drops, or even serious safety hazards like electrical fires. Therefore, extending an EV charging cable is both technically unsound and not legally allowed in many regions.
If your current EV cable is too short, the safest and most technically appropriate solution is to purchase a longer certified EV charging cable. At Voldt®, for instance, we offer cables in various lengths, ranging from 2 metres up to 40 metres. Our cables are CE and TÜV certified, meaning they meet the highest European safety standards. They are also made in Europe and equipped with extremely weather-resistant connectors suitable for outdoor use throughout all seasons.
It’s also important to note that most mobile EV chargers (like the Voldt® Type 2 to Schuko or Type 2 to CEE models) include features such as temperature sensors, overcurrent protection, and smart communication between the vehicle and the cable. If you add an extension cord, these safety systems may no longer function correctly, which could prevent your vehicle from charging or cause malfunctions. If you need more flexibility, the best approach is to choose a mobile charger with a longer fixed cable length tailored to your needs—without any unsafe extensions in between.
