Tesla Motors, in response to a blog post that claims that Roadster batteries could fail if the car is ever totally discharged, said that this is an “irrational” concern. On Tesla’s Web site, it said that there’s a rumor started by a blogger (named Understatement) about its electric vehicles becoming a “brick” -- a totally immobile vehicle that can’t be started or pushed down the street.
Tesla said that this rumor stems from an unreasonable fear based on “limited information and a misunderstanding of Tesla's battery system." The blog said that a $40,000 battery pack replacement may be required if the car turns into a “brick.” Tesla is preparing for the start of production for its electric Model S sedan, its first wholly U.S.-built vehicle, beginning in July.
Earlier this month, Tesla had unveiled a prototype of the Model X. This is an electric crossover vehicle that will arrive in 2013. At the close Friday in New York trading, Tesla’s shares dropped by 2.3% to $33.75. So far, the shares have gained 18% this year.
David Friedman, a senior engineer for the Union of Concerned Scientists, an environmental advocacy group, said that for this to be a problem, the vehicle has to be not in use for an extended period of time.