Frigid weather saps EV batteries. Heres how to keep yours running.

Electric batteries generate power from chemical reactions within the battery. But when temperatures drop, cold temperatures delay the reaction process, reducing the battery storage and the EV’s available power, according to research from Recurrent, a tech start-up dedicated to data about EVs. This could greatly extend an EV’s charging time — even if someone went to a supercharging station.

The research also found that when temperatures were freezing, some of the most popular EVs can drop down to 46 percent of their verified range, down to what’s known as a “winter range.” For the Volkswagen ID.4, which ranges about 250 miles per normal charge, its winter range is nearly 115 per charge.

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