Electrophysiology devices made by Minneapolis-based St. Jude Medical Inc. are back in the bad news column due to an unexpected depletion of batteries the company said is associated with a buildup of lithium deposits. The problem could lead to complete battery failure within an hour of the sounding of an alert, but Wall Street sees the problem as limited as demonstrated by the fact that the announcement drained only about three percent from the value of the company's shares at the New York Stock Exchange. Read More