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"When this happens, especially when the batteries are charged, a lot of heat is generated inside the cells and this leads to electrolyte boiling, the rupture of the cell casing, and then a significant fire," Carnegie Mellon University materials science professor Jay Whitacre told Wired. A defective battery might have tiny sharp metal particles inside that could puncture the separator all on its own. You don't necessarily need to stab a lithium ion battery to set it on fire. If the battery short-circuits - say, by puncturing the incredibly thin sheet of plastic separating the positive and negative sides of the battery - the liquid electrolyte can heat up so quickly that the battery explodes. Much like your laptop, tablet or phone, these hoverboards use lithium ion battery packs for their power, and it just so happens that the liquid swimming around inside most lithium ion batteries is highly flammable. The science behind hoverboard fires is actually pretty simple, and fairly well understood. The cause: overheating lithium-ion batteries. Similarly, many officials now warn against overcharging hoverboards, but when was the last time you had to think about overcharging a gadget? With modern laptops and smartphones, you simply plug them in and leave them there, trusting that they'll automatically shut off the flow of electricity when they're done.īut in February 2016, the organization officially warned that hoverboards pose a serious risk, and threatened to block imports or recall hoverboards that don't meet voluntary safety standards.Īnd in July 2016, the CPSC followed through on that threat, recalling half a million hoverboards in the United States. Since you're so restricted when it comes to which type of charger you can use, it's pretty unlikely that any of these fires occurred due to someone mistaking a laptop charger for a hoverboard one. That sounds like common sense - until you realize that these hoverboards tend to use a plug you won't find on any other type of device.
![hover board charger hover board charger](https://n2.sdlcdn.com/imgs/g/5/9/Tygatec-Charger-For-Hoverboard-SDL384019974-1-37726.jpeg)
WGNOįor instance, officials have been warning that you should only use the charger that comes in the box. Jessica Horne lost her family's Louisiana home after her 12-year old son's Fit Turbo hoverboard exploded.
![hover board charger hover board charger](https://i.ebayimg.com/images/g/4XsAAOSwNJtdMG5i/s-l640.jpg)
![hover board charger hover board charger](https://ae01.alicdn.com/kf/HTB106YPbvQs8KJjSZFEq6A9RpXaD/VariCore-42V-2A-Charger-Hoverboard-Charger-EU-Plug-Power-Adapter-For-2-Wheel-Self-Balancing-Scooter.jpg)
And much of the advice we've seen issued by local fire departments and government agencies isn't likely to help. There's no particular brand of hoverboard to avoid - they all seem to come from thousands of interchangeable factories in China - or any label on the box that guarantees a product won't explode. Here's the really scary part: there's no single reason why these hoverboards are exploding, and there's no sure-fire way to avoid potential catastrophe if you want to buy one yourself.
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