https://the-gadgeteer.com/2012/01/13/spareone-the-worlds-only-cellphone-that-runs-on-a-single-aa-battery/
Ever had a dead car battery, reach for your cellphone to call for help, and find that your cellphone's battery is dead, too? If you kept a SpareOne cellphone
worldcellphoneruns
https://www.cbsnews.com/colorado/news/cellphone-battery-sparks-fire-evacuations-southwest-flight-denver-international-airport/
Everyone on board a Southwest Airlines flight at Denver International Airport was evacuated safely after a cellphone battery ignited.
cellphone batterysparks fireevacuationssouthwestflight