Winter EV Range Loss: What Causes It and How to Mitigate It
From the perspective of Tairui, understanding why cold weather impacts driving range, and designing around it — both in vehicles and driving strategy — is essential for reliability and user confidence in cold-season mobility. 1. Why EVs Lose Range in Winter 1.1 Battery efficiency drops in cold temperatures At lower environmental temperatures, the chemical reactions within the lithium-ion battery cells will slow down. The internal resistance increases, which results in a reduction in the available energy that the battery can provide. Even if the battery is fully charged, in extremely cold or near-cold conditions, the effective driving range of an electric vehicle may be significantly lower than its rated range. […]