Ford Motor Co.’s battery supplier says the defect that led to a fire in an electric F-150 Lightning and halted production earlier this month is not a fundamental flaw in the design of the power source.
SK On, the automotive battery unit of South Korea’s SK Innovation Co. Ltd, worked with Ford to identify the problem and is implementing a fix, the company said Monday in an emailed statement. The fire in a holding lot near the Lightning’s Dearborn, Michigan, factory spread to two other trucks on Feb. 4 and has shut down the plant into a fourth week.