Electric car range falls in freezing weather

Testing by auto club AAA has found that how far an electric vehicle can travel on one charge varies widely depending on the weather. Frigid temperatures can reduce that distance by more than 50 percent.

The center conducted tests on a 2013 Nissan Leaf, a 2012 Mitsubishi iMiEV and the electric version of a 2014 Ford Focus.

The cars were tested for city driving to mimic stop-and-go traffic and to better compare with Environmental Protection Agency ratings listed on the window sticker, AAA said.

The average EV battery range in AAA’s test was 105 miles at 75 degrees but dropped by more than half to just 43 miles at 20 degrees. Heat also sliced the cars’ ranges, but by less: The cars averaged 69 miles per full charge at 95 degrees, about one-third less than in 75-degree weather.

The research center tested the cars following the same EPA drive cycles that provide the data for the mileage window stickers on new cars. The vehicles were charged up and then driven on a machine with rollers, called a dynamometer, in a climate-controlled room until the battery was exhausted.

The research is important to the Automobile Club of Southern California because it maintains mobile recharging trucks for people who misjudge how far they can go in their electric car.

“EV drivers need to carefully monitor range in hot and cold weather,” said Steve Mazor, the engineer who manages the Southern California club’s Automotive Research Center.

More in Herald Business Journal

The FCC chairman moves to repeal ‘net neutrality’ rules

His plan would allow internet providers to control broadband speeds and favor their own services.

Boeing bolsters team for potential 797 with leading engineer

Terry Beezhold has been chief project engineer for the 777X program.

Tom Hoban
Are millennials warming up to life in suburbia?

They dominate the apartment market and their wants need to be accounted for, says columnist Tom Hoban.

Camano artist mixes flask, paintings for successful cocktail

Art flasks prove popular as bachelorette gifts, birthday presents and wedding favors.

Fluke’s T6 Electrical Testers receives Innovation Awards honor

Fluke’s T6 Electrical Testers have received top honors in the Tools and… Continue reading

Everett volunteer named ‘community champion’ by Molina Healthcare

Everett’s Jorge Galindo was one of seven people across the state to… Continue reading

Big Tobacco’s anti-smoking ads begin after decade of delay

Experts say the campaign will not reach people when they are young and most likely to start smoking.

Cascade Valley Health to hold Festival of Trees in Arlington

Cascade Valley Health Foundation will be holding their fifth annual Festival of… Continue reading

7-Eleven program helped add 500 trees, shrubs to Everett park

Last month, 7-Eleven helped plant more than 500 trees and shrubs at… Continue reading

Most Read