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Chinese Woman Electrocuted by iPhone 4 Likely Used Unauthorized Charger
Knockoff chargers often use low cost supplies and fail to meet standards for the adequate isolation of electrical input and output, making them more dangerous than brand name chargers that are subject to safety regulations.
According to Xiang Ligang, a telecommunications expert interviewed by CCTV, the charger Ma had been using may have been a "knockoff" - a fake.The woman was also reportedly using an iPhone 4 at the time of the incident, rather than an iPhone 5 as was originally stated. The iPhone 4 contains stainless steel, while the iPhone 5 is primarily aluminum. It is still unclear what caused the malfunction, as the iPhone 4 apparently remained functional after the incident.
"Knockoff chargers sometimes cut corners," Xiang said. "The quality of the capacitor and circuit protector may not be good, and this may lead to the capacitor breaking down and sending 220 volts of electricity directly into the cell phone battery."
Xiang said that normally, the electric current from an overloaded charger would overheat the phone’s casing, damaging the circuits inside and rendering the device unusable. In the case of Ma’s iPhone 4, however, authorities said the phone could still be started normally despite severe traces of burning on its exterior. The phone’s data cable, charger, and plug were all intact.A police investigation into the incident is underway, and Apple has pledged to look into the accident. "We are deeply saddened to learn of this tragic incident," said an Apple spokeswoman. "We will fully investigate and co-operate with the authorities in this matter."
A second iPhone related electrocution has also been reported (via ZDNet), involving a man who was injured while connecting his iPhone 4 to a third party charger 10 days ago. The man, who is currently in a hospital in Beijing, remains in a coma.