Federal safety regulators are looking into the safety of lithium-ion batteries after a Chevrolet Volt went up in flames at a parking lot at the National Highway Traffic Administration testing center in Wisconsin.
An agency official said that the incident took place three weeks after the Chevrolet Volt went through a side-impact crash test on May 12.
The Volt incident has forced authorities to ask automakers that sell cars equipped with lithium-ion batteries in the U.S., including GM, Nissan and Ford, about the potential fire risks, according to agency officials familiar with the matter.
Lithium-ion batteries, such as the ones powering the Chevy Volt and Nissan Leaf, are considered more efficient than nickel-metal units used in other vehicles like Toyota’s Prius hybrid.
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