"EV batteries are degrading more slowly than previously measured, with new research from Geotab showing an average annual degradation rate of 1.8%, down from 2.3% recorded in 2019.The study identified several factors affecting battery longevity, with temperature playing a significant role. EVs used in hot climates showed faster degradation rates compared to those in temperate conditions, defined as fewer than five days per year above 80°F (27°C) or below 23°F (-5°C)."https://www.electrichybridvehicletechnology.com/news/geotab-data-shows-ev-batteries-could-last-20-years.html
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