page_title: Samsung Galaxy Note 7
section_title: Battery faults
hierarchical_section_title: Samsung Galaxy Note 7 / Issues / Battery faults
caption_attribution_description: English: information for owners of Samsung galaxy note 7 sailing from Poland to Sweden on ferry
context_page_description: The Samsung Galaxy Note 7 is a discontinued Android-based phablet designed, developed, produced and marketed by Samsung Electronics. Unveiled on 2 August 2016, it was officially released on 19 August 2016 as a successor to the Galaxy Note 5. It is Samsung's first phone with a USB-C connector, and the last phone in the Galaxy Note series to have a home button. Although it is the sixth main device in the Galaxy Note series, Samsung branded its series number as "7" instead of "6" so consumers would not perceive it as being inferior to the flagship Samsung Galaxy S7, and to prevent confusion about the order of release due to the same release year.
  The Galaxy Note 7 is an evolution of the Galaxy Note 5 that inherited hardware components and improvements from the Galaxy S7, including the restoration of expandable storage and IP68 water resistance, and new features such as a dual-sided curved display, support for high-dynamic-range color, improvements to the bundled stylus and new software features which utilize it, an iris recognition system, and a USB-C port.
context_section_description: Battery defects caused many Note 7 units to overheat and combust or explode. On 10 October 2016, Samsung permanently discontinued the Galaxy Note 7 due to these repeated incidents.
  In the original run of devices, the battery produced by Samsung SDI contained a design flaw that made electrodes on the top-right of the battery susceptible to bending. This weakened separation between positive and negative tabs of the battery, resulting in thermal runaway and short circuits.
  Following an official recall on 12 September 2016, the Galaxy Note 7 was re-versioned using batteries from China-based Contemporary Amperex Technology (CATL or ATL), which also supplies batteries to the iPhone smartphones. On 23 January 2017, Samsung stated that these batteries had suffered from a manufacturing defect in the welding process, which pushed electrodes up and caused damage to the separation between the positive and negative tabs. Some batteries were also missing insulation tape entirely. Samsung reported that these oversights resulted from the vendor's push to ramp up production of batteries for the replacement phones in order to meet demand.
  Due to the battery defects, the device was considered a hazmat product, and was prohibited from being taken onboard at many airlines and bus stations.
caption: Galaxy Note 7 Note security information
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