Why Your EV Charge Speed Drops in Winter: A 2026 Technical Deep-Dive
You've noticed your EV charges much more slowly in winter — and it's not your imagination. Cold lithium-ion cells have significantly higher internal resistance, which forces the battery management system to reduce the maximum charge rate to protect the cells. We go deep on the science, quantify how much slower charging is in cold weather, and share the practical techniques to minimise the impact.