Newly released Apple iPhone 8 seems to have battery swollen issue. Reports have been coming out that iPhone 8s that have been split apart after its arrival. Apple on Friday said it is “aware and looking into” the matter concerning battery problems that were reported on some units of iPhone 8 and iPhone 8 Plus. It isn’t clear if the issue has plagued a whole batch of iPhones — like it was with the Galaxy Note 7 — or just a handful of them. Unlike the Galaxy Note 7 though, there are no reports of batteries explosions.Early reports came in from Taiwan and Japan where the iPhone 8 was said to “split open”, pushing the display out of the chassis. The only component of the phone that is capable of such an expansion is the battery. While the Taiwan incident happened while charging (from the bundled charger and cable), the iPhone 8 Plus buyer in Japan got a swollen iPhone 8 Plus out of the box.When Li-ion batteries become old, they outgas a flammable electrolyte mixture to prevent it from reacting to cause fire, which in turn causes the battery to swell. You might have seen this happening with old phone batteries. But batteries may swell up to twice their size and because of other reasons as well. This may also happen when the batteries are over charged or over heated. But swelling is a fail-safe mechanism that prevents batteries from exploding, and swelling of the iPhone 8 battery is in fact a proof that the mechanism is working fine.Li-ion batteries are inherently less stable compared to other battery types because of their high energy density (packing charge in smaller form factor). It could be that Apple wanted the batteries to be smaller still, to incorporate for wireless charging and glass back, while maintaining its slim (7.5mm) figure. Compared to the Galaxy S8, the iPhone 8 is 0.7mm thinner.Apple is in possession of the swollen iPhones and is looking in to the matter. Batteries on the iPhone 8 and the iPhone 8 Plus are being supplied by Amperex Technology Limited (ATL), The next web citing unconfirmed reports claims. ATL was one of the two suppliers of battery for the Galaxy Note 7.
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