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Study shows electric cars lose 41% of range in ‘icy temperature’, Tesla disputes the claim
AAA research released a new study about the effect of temperature on electric vehicle range and they claim that the average electric car range drops “41 percent at 20°F and when the HVAC system is used to heat the inside of the vehicle.”Tesla disputes the claims saying that data from their own fleet of vehicles show that the decrease is not “anywhere near” what AAA is reporting.
1. In isolation, hot and cold ambient temperatures resulted in modest reductions of driving range and equivalent fuel economy. Driving range and equivalent fuel economy reductions slightly differ due to the temperature dependency of both the recharge allocation factor (RAF) and battery discharge capacity.
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a. On average, an ambient temperature of 20°F resulted in a 12 percent decrease of combined driving range and a 9 percent decrease of combined equivalent fuel economy (when compared to testing conducted at 75°F).
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b. On average, an ambient temperature of 95°F resulted in a 4 percent decrease of combined driving range and a 5 percent decrease of combined equivalent fuel economy (when compared to testing conducted at 75°F).
Read more on electrek.co