01 · Why it happens

Why EVs Lose Range in the Cold

A gas engine wastes most of its fuel as heat, so in winter it warms the cabin almost for free. An electric car is so efficient that it has very little waste heat to spare, so every bit of warmth for you and the battery has to come out of the same pack that moves the car. That’s the big one, but it isn’t the only reason.

• Heating the cabinThe biggest drainA cabin heater can pull 3,000 to 5,000 watts, according to fleet data firm Geotab. The US Department of Energy says about two-thirds of the extra energy an EV uses in the cold goes to heating the cabin. On a short trip that can be more energy than driving takes.
• A cold batterySlower chemistryLithium-ion cells work best at mild temperatures. When they’re cold, the chemistry slows down, so the car holds back some stored energy, limits regenerative braking and spends power warming the pack. AAA measured a 12% range loss at -7°C (20°F) even with the heater off.
• Winter driving itselfSnow, tires and airCold air is denser, slush and snow add drag, and winter tires usually roll with more resistance than all-seasons. Michelin says rolling resistance accounts for roughly 20 to 30% of an EV’s energy use, so tires matter more than you might think.
• Short tripsHeating up again and againEvery time you start a cold car, it has to warm the cabin and battery from scratch. Consumer Reports found short trips with stops can cost about 50% of range in the cold, far worse than steady highway driving.

• 3,000–5,000 WTypical cabin heater draw
• About 75 WHeated seat or steering wheel
• 21.5°C (70°F)Geotab’s range sweet spot
• 115%Of rated range at that sweet spot

03 · Heat pumps

Heat Pumps: The Winter Feature Worth Paying For

Most early EVs heated the cabin with a resistive heater, basically a giant toaster element. It works, but it turns one unit of electricity into one unit of heat. A heat pump works like a fridge running in reverse: it pulls heat out of the outside air (and on some cars, out of the motor and electronics) and moves it into the cabin. Recurrent says a heat pump makes 3 to 4 units of heat for every unit of electricity it uses.

Tesla was early here. The Model Y was the first Tesla with a heat pump in 2020, and by early 2021 Tesla said every model it built had one, including the Model 3. Recurrent’s data shows the difference: 2021 and later Model 3s with heat pumps kept 87% of their range at freezing, while older ones without kept 79%.

Many newer EVs from Hyundai, Kia, GM and others now offer heat pumps too, but they’re not always standard on every trim or every model year. If you live somewhere with real winters, check the spec sheet or window sticker for the words “heat pump” before you buy, especially on a used EV.

A heat pump helps most in the cold-but-not-frigid temperatures many North American winters spend the most time in.

05 · Charging

Charging in the Cold: Why It’s Slower and How to Speed It Up

Range is only half the winter story. The other half is charging speed. A cold battery can’t safely accept a fast charge: pushing too much current into frozen cells risks lithium plating, a permanent loss of capacity. So the battery management system slows charging way down until the pack warms up.

• 36% lessCharge added in 30 minutes at 0°C (32°F) vs. 25°C (77°F), INL study
• Up to 3xSlower charging in the coldest conditions, same study
• About 100 kmAdded in a 15-minute fast charge at -15°C (5°F), CAA average
• 30–60 minBattery preheating time before a fast charge

CAA’s 2025 test shows how wide the spread is. In 15 minutes at a fast charger, a Tesla Model 3 added 205 km (127 miles) and a Silverado EV added 199 km (124 miles), while a Toyota bZ4X added just 19 km (12 miles) and needed 92 minutes to go from 10 to 80%.

Battery preconditioning for fast charging

The fix is to warm the battery on the way to the charger. Most modern EVs do it automatically when you set a fast charger as your destination in the built-in navigation:

• TeslaAutomatic with Trip PlannerNavigate to a Supercharger and the car preheats the battery. Tesla says to start at least 30 to 45 minutes before you arrive.
• FordEn-Route PreconditioningFord EVs warm the battery automatically when you navigate to a DC fast charger using Ford’s Connected Navigation, Google Maps EV routing on Android Auto or, on the 2026 Mustang Mach-E, Apple Maps EV routing on CarPlay.
• ChevroletFast Charge PrepTurn it on manually in the Charging app, or it starts automatically when you route with Google built-in. Chevy says to start up to 30 minutes ahead, or up to 60 minutes when it’s -7°C (20°F) or colder.
• HyundaiBattery preheatingThe Ioniq 5 preheats its battery automatically when a charging stop is set in the navigation, according to Hyundai.

What happens when lots of cold EVs show up without preconditioning? Chicago found out in mid-January 2024, when the city spent about a day and a half below -18°C (0°F). NPR and ABC7 reported long lines at Tesla Superchargers, charges that took far longer than normal and some cars towed after running flat in line.

The lesson from that week is simple: in a deep freeze, keep the car plugged in at home, don’t let the charge drop too low and always navigate to the charger so the battery is warm when you arrive. Tesla’s advice at the time was to keep at least 20% charge.

Arrive with a warm battery and a fast charger can do its job, even in a Canadian winter.

Charging at home in winter

Home Level 2 charging is where winter EV ownership gets easy. Plug in every night, set a departure time and the car will warm itself up on grid power before you leave. Recurrent’s testing found home charging gets a little less efficient in the cold, because some energy goes to warming the battery, but it’s still the cheapest and least stressful way to start every day with a full, warm battery.