A Samsung probe into the exploding batteries that forced the electronics giant to scrap its Galaxy Note 7 smartphones has found irregularly sized batteries caused overheating, the Wall Street Journal reported Friday. When replacement phones also started to combust, the company eventually decided to kill off the Note 7 for good. The company blamed faulty batteries made by an unnamed supplier -- widely believed to be its sister company Samsung SDI. Initially, the WSJ said, Samsung officials believed the problem was limited to batteries made by the Samsung affiliate, and recalled those devices while boosting production of smartphones carrying batteries made by Hong Kong-based Amperex Technology Ltd. to replace recalled devices. The probe found that the issue with the batteries from Samsung SDI was an irregularly sized battery which did not fit the phone properly which then caused overheating, the WSJ said.

Source: Wall Street Journal January 21, 2017 18:27 UTC