A lithium-ion battery testers says that, the 7,000-cell battery found in the electric-powered Tesla roadster may lead to failure problems in the future. "If there are 7,000 cells, and there's one in ten million failures, you do the math in terms of how many vehicles are going to have a cell problem," said the tester, Dan Doughty. The problem is, of course, exploding batteries. Since the Tesla is gaining traction as being the first affordable electric car (the family sedan for model year 2008 should be around $45,000), images of exploding cars piling up on America's highways, filling the evening news are just slightly unsettling.

Are Lithium-Ion Electric Cars Safe? [Technology Review via Jalopnik]