With the arrival of the winter season and the cold, electric car owners have begun to experience a decrease in the range of their cars. This is a well-known issue but only temporary. In fact, it has nothing to do with accumulator degradation. With the return of the heat, autonomy increases again.
THE COLD AND THE BATTERIES 
It's not a problem. a mystery that the cold is not "friend" of electric cars. In fact, below a certain temperature, the chemical reactions inside the battery take place more quickly. slowly and therefore the accumulator loses efficiency. Furthermore, in the presence of low temperatures, electricity is used both to heat the passenger compartment and to bring the cells to the right temperature since the batteries must operate within a precise range of temperatures to perform at their best. . Therefore, in addition to lower efficiency, energy consumption also rises.
The most popular models; recent models have preconditioning systemsof the accumulator always better and also of the heat pump to optimize energy consumption in winter. In any case, with the cold, the performance of the batteries decreases, consumption increases and autonomy decreases, in some cases, especially on models with less recent technologies, clearly.
However, those who buy an electric car are not too interested in technical discussions on the functioning of the batteries. People rightly want to know what happens in everyday use. So, how much does autonomy decrease in winter?
RECURRENT REPORT 
One insight into winter range declines comes from a new report from Recurrent that crunches data from its large community of more than 7,000 vehicles on the road in the U.S., plus additional data from devices such as board that provide information on energy consumption. All this data was then used to obtain the average range expectation under real-world conditions with temperatures ranging nearly minus 7 degrees to minus 1 degree. Therefore, particularly harsh climates that make it even more difficult to the efficiency of electric car batteries is put to the test.
Winter autonomies which are then compared with those in spring temperatures of around 21 degrees. The result of the report is; summarized in the graph created by Recurrent which focuses on 13 electric models including the Ford Mustang Mach-E, the Volkswagen ID.4 and all the Teslas. It should be noted that for some models these are estimates based on data provided by the community. For others, these data are verified thanks to the use of the on-board devices mentioned above.
You can note how the losses are between 3% and 32%. The average, however, is around 21%. Of course, these are not absolute data. Winter range expectation may vary. vary based on many factors. In any case, the report provides a good example of what can be done. wait if you use your electric car in particularly low temperatures.
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