Charging takes longer when the battery is cold. This has to do with battery chemistry. The ions move more slowly in a cold battery pack than in a warm one. The cold has no effect on the charger itself, which gives the same effect as stated on the label. It is the car’s battery management system that limits the charging speed to protect the battery.
In order for the charging to go faster in cold weather, it is best to charge the electric car while the battery is warm. Therefore, please plan a charging stop at the end of the trip, or precondition the battery before charging.
