Although electric vehicles lose autonomy at low temperatures, some suffer from the problem less than others. This is what emerges from a test that the Norwegian Automobile Federation has conducted on 20 electric vehicles. It was probably the largest test of resistance of the EV range at low temperatures ever attempted. The test journey unraveled from Oslo to Hafjell, a journey of about 200 kilometers, although 482 kilometers have been driven to test cars with greater autonomy. Cruising speeds went from 60 to 110 km / h.
The idea was to keep electric vehicles going until battery had not been completely discharged. The first thing the association discovered is that the electric vehicles tested have an autonomy of about 18.5 percent less than as declared by the producers on the Wltp (Worldwide Harmonized Light vehicles Test Procedures). The worst was the Opel Ampera-e. With a declared WLTP radius of 423 kilometers, it managed to travel only 296.9 kilometers, or 29.81 percent less.
The most faithful vehicle to the declared Wltp range was found to be the Hyundai Kona. Of the 449 kilometers declared autonomy, it was able to cover 404.5 kilometers, or only 9.91 percent less. The test also helped the Naf to unmask some common beliefs, such as that electric vehicles suddenly stop when the battery runs out. Nils Sdal, Naf’s senior communications consultant, said: “A fun fact that is worth knowing is that if you completely run out of power, you can still travel a few kilometers. Just turn off the machine and let it rest for a while and then start again. ”