Hello there, Electric battery vehicles are at their most efficient when the battery is up to temperature and they aren’t at their most efficient doing short journeys with a cold battery. After 10 miles or so, depending on the ambient temperature, the efficiency improves greatly, so ignore the efficiency readings after short journeys with a cold battery. ICEs are exactly the same. Just live with the car and you’ll learn how it behaves. Happy motoring
Thats a new one on me. It does make sense though. If your car is plugged in at home, pre-heat the car, that’ll warm up both battery and the car using the house power supply.
Motoring in the cold wasn’t something that was really spoken about until EVs came along but it’s always been more costly https://www.cars.com/articles/why-do-cars-get-worse-fuel-economy-in-cold-weather-475436/
With ICE, it very much depends how far you drive the car and therefore how much of your driving is on enriched mixture (choke) and how much is on normal mixture. If you are regularly driving 10-20mile journeys then fuel economy should not be more than 2-3mpg worse in winter. If your pottering local all the time, hourney will be on an enriched mixture and will effect economy more.
With a BEV, the battery performance degrades much quicker in the cold because the ion’s are less excited, along with extra use of ancilliaries, range can be affected by 20-30%
Its difficult to compare mechanical with battery chemistry, as they are both two different energy sources.