How Well Can EVs Handle the Heat and the Cold? AAA Put Them to the Test

It’s February in Minneapolis. The thermometer reads 12°F, your breath fogs inside the car, and your EV’s range estimate just dropped by nearly half since you unplugged it this morning. You’re not imagining things, and no, your battery isn’t broken.

Now picture the opposite: a Phoenix afternoon in July, 108°F in the shade. You’ve got the air conditioning blasting, and yes, your range is taking a hit there too. Though not nearly as bad as you might have feared.

AAA has been quietly running these exact scenarios in a giant climate-controlled chamber in Los Angeles, picture a car treadmill inside a walk-in freezer, and the latest results, shared exclusively with NPR in May 2026, tell a fascinating story about how far EVs have come… and where physics still refuses to budge.

AAA’s 2026 Test Results, The Numbers That Matter

Here’s the headline: when AAA tested modern electric vehicles in 20°F cold, range dropped by an average of 39%. In 95°F heat, the loss was just 8.5%.

That second number is the real news.

Back in 2019, AAA ran the same test on a different set of vehicles. The cold-weather hit was about the same, around 41%, but hot-weather range loss was 17%, nearly double what it is today. Something has clearly gotten better. But what?

“There’s been a lot of technology changes,” says Greg Bannon, AAA’s director of automotive engineering. New battery chemistries, more efficient vehicle designs, fancier software. And yet, when it comes to winter range? “The electric vehicles actually didn’t change all that much from back in 2019.”

That’s the uncomfortable truth sitting at the heart of these tests: engineers have figured out how to keep EVs cooler in the heat, but they haven’t cracked the cold.

Sources: AAA 2019 and 2026 research studies.

The improvement in hot-weather performance likely comes down to better battery thermal management systems — essentially, more sophisticated cooling loops and smarter software that keeps battery cells in their comfort zone without draining power. But cold? Cold is just harder.

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Why Cold Is Still the Bigger Problem (And Probably Always Will Be)

Here’s the simple physics: batteries are chemical machines. They shuffle lithium ions between electrodes, and at low temperatures, those ions move like molasses in January, diffusion, conductivity, and reaction rates all slow down.

But here’s the kicker: the battery chemistry loss is only about 10-12%. The real villain is your cabin heater. Once you switch the heater on, total range loss jumps to that 39% figure.

Why? In a gas car, heating is practically free. The engine throws off so much waste heat that a little of it is diverted to keep you warm. An electric drivetrain is the opposite: almost no waste heat. Every watt warming your toes comes straight out of the battery that’s supposed to be moving you forward.

AAA’s testing found that the heating system can pull 5 to 7 kilowatts continuously in sub-freezing weather, that’s like running 50 LED bulbs nonstop while you’re driving.

Heat Pump vs. Resistive Heater: The Toaster vs. Refrigerator Analogy

If you’re shopping for an EV, you’re going to encounter this choice constantly, and it matters more than almost any other single feature for winter range. So let’s make it simple:

• Resistive heater = a toaster. Electricity runs through a heating element, it gets hot, a fan blows air across it. 1 kW of electricity gives you exactly 1 kW of heat. Simple, cheap, somewhat wasteful.
• Heat pump = a refrigerator running backward. It doesn’t create heat, it moves heat from outside air into your cabin. In moderate cold, it can deliver 2 to 3 kW of heat for every 1 kW of electricity used.

That’s not a small difference. In real-world terms, EVs with heat pumps typically retain about 10–20% more winter range than those with resistive heaters. A car rated at 264 miles might give you 230 miles with a heat pump, but only 176 miles with resistive heat.

The catch? Heat pump efficiency drops off below about 10–15°F, eventually falling back toward resistive-heater performance. So if you live in Fairbanks, a heat pump alone won’t save you. But for everyone else, it’s worth prioritizing.

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Hot Weather: Good News, But Not a Free Pass

That 8.5% number from the 2026 study deserves some celebration. It means on a balmy 95°F day, the average EV driver loses about 21 miles of range for every 250 miles — noticeable, but far from catastrophic.

Modern EVs manage heat through active liquid cooling systems that circulate coolant through the battery pack, pulling heat away before it degrades performance. These systems have gotten significantly better since 2019, which explains most of the improvement in AAA’s results.

That said, there are still a few things working against you in the heat:

• Air conditioning still draws significant power — though less than heating does.
• Fast charging generates heat, and on a scorching day, the battery management system may slow charging speeds to protect the pack (a process called “thermal throttling”).
• Parking in direct sunlight doesn’t just make the cabin miserable, it forces the battery cooling system to work harder before you’ve even started driving.

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It’s Not Just EVs, Gas Cars Hurt Too

This part gets left out of a lot of discussions, so let’s set the record straight: every vehicle loses efficiency in extreme temperatures.

AAA’s 2026 testing also included hybrids, which lost nearly 23% of their fuel economy at 20°F. The EPA estimates that gas vehicles lose 10–30% of their fuel economy in cold weather depending on the type of trip.

“This isn’t a problem that’s exclusive to EVs. This happens to basically any kind of vehicle when it gets really cold,” says Ed Kim, chief analyst at AutoPacific.

The real difference isn’t in the percentage loss, it’s in what happens next. You can refill a gas tank in five minutes. Recharging a cold-soaked EV battery might take noticeably longer. That’s the practical pain point, not the range loss itself.

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7 Practical Strategies to Protect Your EV Range Year-Round

Knowledge without action is just anxiety fuel. Here’s what you can actually do.

1. Precondition While Plugged In

This is the single most effective thing you can do. Warm up (or cool down) your car’s battery and cabin while it’s still connected to the charger. That way, you’re pulling power from the grid, not from your battery. Most modern EVs let you schedule this through an app.

2. Use Heated Seats and Steering Wheel Instead of Cabin Heat

AAA’s Megan McKernan notes this often-overlooked trick: heated seats and a heated steering wheel consume far less energy than blasting hot air, and they make you feel warm faster, like an electric blanket versus trying to heat a drafty room.

3. Park in a Garage or Shade

Keep the cabin and battery closer to comfortable temperatures between drives. In summer, a shaded parking spot can reduce initial cooling demands; in winter, a garage prevents the battery from getting cold-soaked.

4. Time Your Charging for Cooler Hours

On hot days, charging at night when ambient temperatures are lower improves efficiency and reduces battery stress.

5. Keep Tires Properly Inflated

Underinflated tires create more rolling resistance, which saps range in any weather. Check them regularly, cold weather causes pressure to drop.

6. Moderate Your Speed

Aerodynamic drag increases exponentially with speed. At highway speeds, wind resistance, not temperature, is often the biggest range killer.

7. Plan Charging Stops With Temperature-Adjusted Range

If your car tells you it has 250 miles of range at 75°F, at 20°F with the heat on, you might realistically have closer to 150 miles. Use apps like A Better Route Planner that let you input weather conditions for more accurate trip planning.

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How to Choose an EV That Handles Your Climate

Not all EVs handle temperature extremes equally. If winter range is a priority, here’s what to look for:

• Ask whether it has a heat pump. Don’t assume, some trims of the same model include one while others don’t. It’s one of the highest-ROI features for cold-climate buyers.
• Check real-world winter data. Recurrent’s large-scale studies (30,000+ vehicles) and the Norwegian El Prix winter tests provide model-specific winter range retention numbers.
• Battery preconditioning capability. Some EVs can warm the battery to optimal temperature before fast charging, dramatically improving cold-weather charging speed.
• Consider the range buffer you actually need. If your daily drive is 40 miles and the car gets 250 miles EPA, even a 40% winter loss leaves you with 150 miles, more than triple what you need. The average American drives about 37 miles a day.

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EVs Work in the Cold, With a Little Planning

Here’s what I’d tell a friend who’s on the fence: don’t let the 39% number scare you away from an EV. The data is clear, yes, range drops in winter, and it’s significant. But also:

Norway, not exactly known for tropical winters, hit 98% battery-electric vehicle sales in March 2026. If EVs were genuinely unusable in the cold, the Norwegian car market would look very different.

For the vast majority of drivers, even the reduced winter range more than covers daily needs. The real question isn’t “can this EV handle the cold?” It’s “can I plan around predictable range loss?” The answer, in almost every case, is yes.