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To: Swordmaker

The iPhone 7 was reported to having this feature.


16 posted on 10/27/2016 7:10:18 PM PDT by occamrzr06
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To: occamrzr06
The iPhone 7 was reported to having this feature.

Only in a breathless hyperbole loaded articles using a single source reporting ONE iPhone 7 Plus fire in Australia in which the headline implied that fire would lead to a massive recall of all 20 million iPhone 7 models already sold. There was one more iPhone 7 that was burned in shipment, but that fire was attributed to damage done to the device in shipping. The shipping box and device were penetrated by some exterior object doing severe damage to box and device, which resulted in the fire.

Counting the supposedly spontaneous fire in Australia, and the known cause shipping fire, that's a total of 2 (really only 1) fires in a population of approximately 20,000,000 in two months on the market. Compare that to the over 250 reported Samsung Note 7s that either caught fire or exploded in a population of 2.5 million shipped but only 1.5 million sold worldwide in a period of less than a month.

The normal failure rate of any Lithium Ion battery is 1 in 8 to 10 million per year, Apple has 1.2 billion iOS devices in the wild with Lithium Ion batteries installed in them. With that number of Apple devices out there, it would be normally expected to see 120 to 150 battery failures from over heating and fires among all those devices in a normal year throughout the world. In actual fact, the number of Apple battery failures is far lower than that. The number I've see is somewhere around 50 and few of them are overheating.

The math for the Samsung Note 7s works out to a rate that is 3,000 times that normally expected incidence of failures! There was something seriously wrong with the device, the batteries, or the charging system being used. That's why Samsung was so willing to write of almost $20 billion in losses associated with that phone! The potential with leaving it out there was far greater than recalling it. The bad thing is that over 1 million of those who bought the Note 7 have failed to turn them in!

People who are trying to somehow make an equivalence of the Apple products to the Samsung products that have such failures where there is none are spreading deliberate Fear, Uncertainty, and Doubt (FUD).

It is my considered opinion that the problem with the Note 7 is not in the design, but rather with the rapid battery charging system used on many of the high-end Android phones, but primarily on Samsung phones. Rapid charging require pushing high-amperage in a short time into these batteries, which heats them up. Heat causes expansion. Heat and expansion causes stress. Then the cool down and that causes more stress. Physical movement in materials, especially solid state battery materials is not something that has been tested to find the battery failure rates. It may be that the 1 in 8 to 10 million per year is NOT the proper rate for Lithium Ion batteries that have been rapidly charged multiple times. We don't know THAT rate. For all we know, it might be 1 in 3,333 per year or 3,000 times more frequently than batteries that have not been rapid charged, because that testing has not been done!

Apple could easily use rapid charging on their mobile devices. They don't. Why not? Perhaps it is because they have done such testing and found it is NOT a good idea due to strain on the batteries. Apple did find that even their early MagSafe power connectors did not stand up well to higher amperage loads and could, if the load went up, fail much faster and catastrophically (read catch fire), They had to recall a whole bunch of them and replace them with a more robust design.

27 posted on 10/27/2016 7:59:46 PM PDT by Swordmaker (This tag line is a Microsoft insult free zone... but if the insults to Mac users continue...)
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