Skip to main content

AAA report: Freezing temps slash electric vehicle range almost in half

Extremely cold temperatures can decrease electric vehicle operating range by 41 percent, according to a new report by the American Automobile Association. The excess battery drain results primarily from using the vehicle’s HVAC to warm the vehicle interior.

High temperatures that require greater effort by an EV’s air conditioning system also shorten driving range, but keeping passengers warm when it’s below freezing has the greater effect.

AAA compared average operating range and fuel economy among five electric vehicles at 20 degrees and 95 degrees Fahrenheit to their performance at 75 degrees, a moderate temperature at which the vehicles had the highest range and fuel economy.

Even when the EVs were run without using their HVAC systems, operating range and fuel economy dropped, but not as drastically as when the heating or cooling systems were employed.

At 20 degrees Fahrenheit, the average driving range decreased 12 percent and fuel economy dropped nine percent; both compared to 75-degree temperature operation. With the HVAC systems in use, however, the tested EVs’ average driving range decreased 41 percent and fuel economy fell 39 percent at 20-degree temps.

At an above normal 95 degrees, running with no air conditioning cut the range by four percent and fuel economy by five percent. When the AC was turned on in 95-degree testing the range decreased by 17 percent and fuel economy slipped 18 percent.

AAA recommendations

AAA has four recommendations to help owners prepare for EV’s reduced driving range and lower fuel economy before driving when the weather is colder or hotter than usual:

    • Account for the lower driving range and plan for more charging stops than usual. Check the locations of charging station along your route before beginning your trip.
    • Reduce the EV’s effort to bring the cabin to a comfortable temperature range by pre-heating or pre-cooling while connected to a charger.
    • Park the EV in a garage.
    • Get used to planning if you own an EV in areas in the U.S. with frequent extreme temperatures, especially in states with long, cold winters.

AAA tested five electric vehicles in conjunction with the Automotive Club of Southern California’s Automotive Research Center (ARC) in Los Angeles. AAA selected one vehicle per manufacturer, with the requirement that the EVs were sold in the U.S. and had a minimum 100-mile EPA estimated driving range. The test vehicles included a 2018 BMW i3s, 2018 Chevrolet Bolt, 2018 Nissan Leaf, 2017 Tesla Model S 75D, and a 2017 Volkswagen e-Golf.

Editors' Recommendations

Bruce Brown
Digital Trends Contributing Editor Bruce Brown is a member of the Smart Homes and Commerce teams. Bruce uses smart devices…
Sony could enter EV market with its Vision-S vehicles
sony could enter ev market with its vision s vehicles evs

It was precisely 12 months ago at CES that Sony unveiled its Vision-S 01 concept electric vehicle (EV) design. That’s right, Sony, the company more famous for TVs, cameras, and consoles than cutting-edge cars.

Our excitement at the sedan’s dazzling design was tempered by the realization that the Japanese company would probably never actually manufacture the automobile.

Read more
The pros and cons of electric vehicles
electric vehicles pros and cons car plugin getty feat

Largely fueled by government regulations, the electric vehicle (EV) segment is growing on a regular basis in many markets around the world. Most carmakers are developing at least a couple of battery-powered models, and many already have at least one in their portfolio. If you've never driven an electric car, let alone owned one, there are a few things to keep in mind before giving up gasoline for good. Here are the pros and cons of living with an EV.
Pro: They're cheaper to maintain
Electric cars are considerably more expensive than comparable gas-powered models, but you'll spend less money to keep one on the road. They're built with fewer moving parts, which reduces the likelihood of something breaking. Plus, the regular maintenance your gasoline-powered car needs to run smoothly (oil changes, fluid flushes, and the like) is no longer necessary. The biggest expense with EVs is the eventual need for a battery replacement, which will come with a four-digit price tag. Still, you should be able to get many miles out of your EV before that becomes an issue.

Oil changes, fluid flushes, and the like are no longer necessary.

Read more
Apple talks with Hyundai and Kia about electric vehicle are reportedly ‘paused’
A close-up of the Apple logo on a 2020 M1 Mac Mini, with MacOS Monterey reflecting onto its surface.

There have been rumors flying around for months about the "Apple Car" -- a project believed to be under development by Apple to produce an electric vehicle (EV). Confirmed details about the project are scarce, though just this week a new report suggested that the proposed vehicle would be fully autonomous and would be able to operate without a human driver.

Now, though, there may be a kink in Apple's plans. Apple has been in talks with Hyundai and Kia about potentially collaborating to produce an electric vehicle, but according to sources who spoke to Bloomberg, these talks are now "paused."

Read more