Here are the reasons why so many hoverboards are catching fire – cnet

The fires have started in all sorts of different circumstances, too. Electricity jokes riddles According to owners and witnesses, some of the hoverboards exploded while charging, others while riding and one while it was simply sitting near a kiosk in a Washington shopping mall. Gas vs electric stove cost (There have been several other hoverboard fires reported in the UK, and at least one in Hong Kong.)

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. Eon gas card top up 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. Hp gas online booking hyderabad And much of the advice we’ve seen issued by local fire departments and government agencies isn’t likely to help.

For instance, officials have been warning that you should only use the charger that comes in the box. Was electricity invented during the industrial revolution 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. Shale gas in spanish 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.

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.

While the US Consumer Product Safety Commission was on the case as of December 2015 to figure out the actual root causes of these incidents, they didn’t have the answers when we first published this story. Gas tax in texas “We want to be able to deliver for the public, but we hope they’ll be able to appreciate that what’s going on right now is a very thorough science-based investigation,” said CPSC spokesman Scott Wolfson in late 2015.

But 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.

And in July 2016, the CPSC followed through on that threat, recalling half a million hoverboards in the United States. J gastroenterol The cause: overheating lithium-ion batteries. Z gas guatemala The science

The science behind hoverboard fires is actually pretty simple, and fairly well understood. Gas pain 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. O goshi judo 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.

You don’t necessarily need to stab a lithium ion battery to set it on fire. Electricity units of measurement A defective battery might have tiny sharp metal particles inside that could puncture the separator all on its own. Gas after eating bread “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. Gas x strips after gastric sleeve You can see what a lithium ion battery fire looks like in our Droid Turbo 2 torture test video:

It shouldn’t be a revelation that lithium ion batteries are volatile, because fires like these aren’t exactly new. Gas mask drawing We’ve been living with potentially deadly explosions in our pockets and laptop bags for years. Electricity projects for class 12 In 2004, a spike in the number of cell phone battery explosions prompted this CNET report, and Dell recalled millions of laptop batteries in 2006 after just six incidents of fire. Gas laws worksheet with answers More recently, Boeing had to ground the 787 Dreamliner airplane until it could find a way to keep its lithium ion batteries from overheating. Gas pain in shoulder Safety standards, or the lack thereof

If lithium ion batteries are so volatile, why are we still using them today? The traditional argument is that the energy density of lithium ion batteries is significantly higher than batteries that use less flammable materials. Electricity production (In other words, a lithium ion battery can be smaller, lighter, and/or last longer than say, a lithium iron phosphate one.)

Another reason is the consumer electronics industry has gotten much better about safety standards, to the point where most of us don’t think twice about leaving a phone connected to a charger. Gas vs diesel towing “We said to the companies, you need to come together, create a voluntary organization and set a safety standard,” says the CPSC’s Wolfson, recalling how we went from big battery scares and recalls in the mid-2000s to the relatively safe laptops and phones we have today.

Most modern batteries now incorporate all kinds of safety measures, such as emergency vents, and many products filled with lithium ion batteries have to endure a barrage of drop tests, crush tests and electrical stress tests before they can pass.

That’s not a reflection on the quality of Chinese manufacturing in general, by the way. Gas city indiana police department Practically every high-quality Apple product comes off a Chinese assembly line, not to mention those of Lenovo, a Chinese company that’s one of the top worldwide computer vendors. Gas 37 weeks pregnant But China has also become famous as a place where tiny factories can pile onto a hot new idea like the selfie stick or the miniature R/C helicopter, churning out copycats in record time.

By the time the hoverboard fad took off in the United States, there were already too many Chinese companies building hoverboards to tell who came up with the idea first. D cypha electricity futures Practically every hoverboard you see is a counterfeit, in that sense.

“Right now there are thousands of workshops making identical hoverboards in China, and the only obvious differentiator is the costs,” says Jay Sung, CEO of popular electric-scooter company EcoReco. Gasset y ortega biografia And since there are so many different ways these Chinese companies could have cut costs among the different components they trade with one another and piece together to form the final product you see, it’s hard to narrow down the actual point of failure.

So far, some reports have blamed the batteries, others the cables, but we don’t know for sure. Electricity and magnetism pdf The UK divisions of retailers Amazon and Costco are specifically telling customers to destroy charging cables that have plugs that weren’t built to UK safety standards. Natural gas jokes (Costco is providing replacement cables, while Amazon is offering full refunds.)

Another possible culprit is the cut-off switch, a safety feature that keeps an electronic device from overcharging, which the UK’s National Trading Standards consumer protection agency says can often fail in these hoverboards. Gas 02 EcoReco’s Sung suggested that to save costs, some hoverboard manufacturers might not even include a cut-off switch to begin with. Gas number That’s clearly not the issue everywhere, though, as Mashable recently tore down a Swagway hoverboard that appeared to have a cut-off switch installed. Gas and supply shreveport What happens now

In the UK, the government is already cracking down on hoverboards. Gas pain relief Not only is it illegal to ride one on public roads or walkways, but the UK National Trading Standards body has now seized and reportedly destroyed 32,000 hoverboards in December 2015 — the vast majority of the 38,800 devices that the organization has been tracking since it started investigating the devices in October of that year.