"Electric vehicles have a somewhat narrow window of ideal temperature where they operate at their most efficient. This is dictated by their lithium-ion battery packs, which are happiest at between 68°F and 77°F (20°C and 25°C), depending on their chemistry, and an EV's range will take a noticeable dive if the ambient temperature drifts too far from this ideal window."
"The cheapest was a Citroen e-C3, which had a small air-cooled 44-kilowatt-hour battery, giving it a range of 199 miles (320 km) on the WLTP test cycle. Next was a Kia EV3 with the long-range 81.4 kWh battery, granting it a WLTP range of 362 miles (582 km). The third car chosen for the test was a Tesla Model 3 Long Range dual-motor, whose 80 kWh battery pack gives it a claimed maximum range of 436 miles (702 km)."
Three electric vehicles were driven at highway speeds in southern Spain where temperatures peaked at 111°F (44°C) to measure real-world range under extreme heat. Lithium-ion battery packs perform best between 68°F and 77°F (20°C–25°C), and ranges fall noticeably when ambient temperatures move outside that window. The tested cars included a Citroen e-C3 (44 kWh, air-cooled, 199 miles WLTP), a Kia EV3 (81.4 kWh, long-range, 362 miles WLTP), and a Tesla Model 3 Long Range (80 kWh, 436 miles claimed). Highway speeds combined with extreme heat caused dramatic range reductions, with the Tesla showing the greatest discrepancy.
Read at InsideEVs
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