The battery pack on the Tesla Roadster (Credit: CNET) If you’ve invested over $100,000 into a Tesla Roadster, you might want to sign up for an alert to avoid your battery dying. Electric car blogs have been buzzing today over a report about a potential problem with Tesla Motor’s electric cars that could turn an expensive battery pack into a “brick.” The Understatement blog said that five Roadster owners had their battery charges go to zero and that the only recourse was to replace the $40,000 battery pack. In the one case cited, the batteries died after six weeks of being idle and in another when an extension cord didn’t provide sufficient power. The primary source for the bricked battery anecdotes appears to be a Tesla service manager. In response, Tesla issued a statement indicating that it is possible to run a battery completely down but it takes counter measures to avoid a zero battery “in virtually all instances.” The company noted that all batteries are prone to damage if left at zero charge for long periods of time

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Tesla downplays danger of ‘bricked’ battery