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At the UL headquarters in Northbrook, Illinois, we got to see all sorts of hoverboard safety tests.

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One existing problem area has to do with the lithium ion battery packs.

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A problem with one cell can lead to serious problems with the product, including fire.

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But, UL has announced procedures to test hoverboards for safety.

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One test involves piercing a nail through a lithium ion cell to see how it reacts. Spoiler alert: This one burst into flames shortly after this photo was taken.

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They also stick hoverboard wheels into a vice over a 7-hour period. If it overheats, it's disqualified from certification.

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Counterfeiting is another problem, where you might see a "UL logo" on a box, but it doesn't reflect a true, UL-approved certification.

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You might also see potential counterfeiting on individual components.

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UL has a team that focuses on counteracting this, though, and plans to introduce hologrammed stickers that are much more difficult to replicate.

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