2012 Chevy Volt has now crossed 400,000 miles, range remains steady

2012 Chevrolet Volt crosses 400,000 miles, September 2017   [photo: owner Erick Belmore]As more battery-electric cars are sold and more drivers become aware of them, the question of battery life recurs among pretty much every potential buyer. How long will the battery last? Will I have to replace it every 18 months as I do in my smartphone? Data on the liquid-cooled battery packs of older Tesla Model S and Chevrolet Volt cars offers...