Free Republic
Browse · Search
General/Chat
Topics · Post Article

To: Swordmaker
The batteries in those older iPhones were made by Amperex Technology Limited, the same battery maker who supplies Samsung phones.

Good to hear from you my friend. But Swordmaker, are you throwing me softballs these days? Ha ha!!! You mean the same supplier whose battery caught on fire on a Southwest Airlines flight, and caused Galaxy Note 7 phones to be banned from all commercial airliners and passenger trains ?


31 posted on 01/03/2018 10:53:42 AM PST by fireman15
[ Post Reply | Private Reply | To 28 | View Replies ]


To: fireman15
But Swordmaker, are you throwing me softballs these days? Ha ha!!! You mean the same supplier whose battery caught on fire on a Southwest Airlines flight, and caused Galaxy Note 7 phones to be banned from all commercial airliners and passenger trains ?

Softballs? No, I just set you up.

You don't seem to be aware that the REASON the Samsung Galaxy Note 7 batteries were catching fire, and even exploding in a few instances, was not defective batteries, but rather, a defective engineering design by Samsung in how they designed and BUILT the Note 7.

Samsung's final report on what caused the fires found a cascade of causes:

In an effort to keep the size down, Samsung's engineers did not allow sufficient space inside their phone case for the normal expansion a Lithium Ion battery must have when it normally charges and discharges. . . but then they designed the Note 7 for fast charging, which causes even more expansion than slow charging does.

Then, in assembly, after not allowing sufficient space for expansion of the selected battery, a decision was made by management to increase the battery size by 5% capacity which fit in the space available, but used the entire expansion space and then a bit more, so they actually compressed the battery as they closed the case, which in some instances, put the circuitry of the cells inside the battery too close together so that when they did swell, they would arc across.

It was determined that all of these errors on the part of Samsung, design, manufacturing, compression, fast-charging, swelling with no room for expansion, choice to use a 5% greater capacity battery by management at last moment, arcing of compressed swelling cells under charge/discharge, all resulted in a perfect storm causing the failures of the batteries. . . which had nothing to do with the quality of the batteries suppled by Amperex Technology Limited, which actually tested normally.

The batteries supplied to Samsung by Amperex, used in other models of their phones, had the expected one in 8 million to 10 million per year failure rate of all other Li-Ion batteries in the industry. . . the same failure rate observed in Apple iPhones. The batteries installed in the Note 7, after all of the errors above, were exhibiting a failure rate of one in 8000 per month (!), which when calculated out of a period of two years, indicates that almost all of the Note 7 models would have exhibited problems by the end of that time. Samsung had to recall all of them considering in just six weeks on the market they had already had multiple personal injuries, two houses burned and four cars destroyed.

39 posted on 01/03/2018 11:37:30 AM PST by Swordmaker (My pistol self-identifies as an iPad, so you must accept it in gun-free zones, you racist, bigot!)
[ Post Reply | Private Reply | To 31 | View Replies ]

Free Republic
Browse · Search
General/Chat
Topics · Post Article


FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson