Samsung has confirmed that the Galaxy Note 7 explosions were caused by faulty batteries.
After initiating the global recall of Galaxy Note 7 smartphones after news about explosions started surfacing from various parts of the world, Samsung had carried out investigations on its own as well as It also teamed up with three independent bodies to know the root cause of the issue. It has been found the manufacturing defect of the two types of batteries that manufactured by two different companies caused Galaxy Note 7 units to explode, reveals the official press release by Samsung.
To reinstate the trust in Samsung, the company created a new lab to find the correct reason behind Galaxy Note 7 explosions. Its new testing lab is equipped with 700 engineers, 200,000 Galaxy Note 7 units and 30,000 batteries. Its partnering companies on the issue dealt with other aspects related to software, hardware, manufacturing, logistics and handling, Forbes reported.
The Galaxy Note 7 featured batteries from two companies, namely Samsung SDI and Amperex Technology. Investigations revealed that the batteries from both the companies had manufacturing defect and that led to Galaxy Note 7 explosions.
The negative electrode tip was incorrectly located in the Galaxy Note 7 batteries by Samsung SDI. The insulation tape was missing on the batteries manufactured by Amperex technology. The South Korean company has confirmed that nearly 3 million Note 7 smartphones that were sold have been recalled.
Samsung has also launched a new "8-Point Battery Safety Check" system to examine the future batteries that will be used in Samsung devices. The new battery safety check system will check various aspects like durability tests, visual inception, x-ray tests, charge and discharge tests, Total Volatile Organic Compound (TVOC) test, disassembling test, accelerated usage test and Delta Open Circuit Test (DOCV) test
Samsung had announced the Galaxy Note 7 in August 2016 and it as soon as it went on sale, news about exploding units starting coming from multiple users. To ensure the safety of its users, Samsung began with its first Galaxy Note 7 recall in September and relaunched the device. However, since the news about Galaxy Note 7 explosions refused to die, the company had to discontinue the Note 7 completely in October 2016.
Here is a news report on how faulty batteries caused Galaxy Note 7 to explode: