Battery Warning System in Trial for Electric Cars: Assurance Against False Shut-off
In a recent speed test conducted by the automobile club ADAC, six current models of electric vehicles from Germany, Korea, Sweden, China, and the USA were put to the test to determine the effectiveness of their warning systems. The results were surprising, suggesting that running out of power with an electric vehicle is virtually impossible.
The driving tests were carried out in good weather with new vehicles, and the test results indicated that the warning systems in the tested electric vehicles are effective. All of the vehicles issued visual, auditory, and power throttling warnings when the remaining range was low.
One of the most interesting findings was the reserve capacity of electric vehicles. The test results suggest that electric vehicles have a buffer that allows operation even when the on-board computer shows zero percent charge. This reserve capacity offers an emergency reserve of 15 to 20 kilometers, but with less power.
None of the test candidates stopped at zero percent battery, and the timing of the first warning varied between 21% and 7% charge among the tested electric vehicles. This means that electric vehicle drivers have plenty of time to find a charging station before they run out of power.
However, the emergency reserve capacity of electric vehicles is subject to degradation over time and in extreme weather conditions. Older batteries may offer less usable emergency reserve, especially in winter. Therefore, it's important not to push the range of electric vehicles and to be aware of the limitations of the battery in different conditions.
The ADAC warns against rolling stranded electric vehicles, as the motor generates voltage that can damage the vehicle's electronics. If you run out of power with an electric vehicle, you need a mobile charging option or a tow service.
The expansion of charging infrastructure for electric vehicles has been slowed down, making it essential for electric vehicle drivers to be mindful of their battery levels and charging options. The most recent study on the lifespan of electric car batteries has been conducted by TÜV NORD, which states the average battery life until dropping below 70% capacity is about eight to ten years.
In conclusion, the test results show that electric vehicles have a surprising reserve capacity that makes running out of power virtually impossible. However, it's important to be aware of the limitations of the battery in different conditions and to plan ahead when it comes to charging. The ADAC's warning against rolling stranded electric vehicles also highlights the importance of having a plan in case of an emergency.
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