The National Fire Protection Association says charging failures can cause "thermal runaway," where an overheated cell inside a battery triggers a dangerous chain reaction. Another potential hazard ...

A 34-year-old man died and two firefighters were injured after an e-bike battery caught fire inside his Bronx apartment. It was the city’s fifth fatality this year caused by lithium-ion ...

The fire inside the third-floor apartment on Beaumont ... At this time last year, 12 people across the city had died in e-bike battery fires — more than twice the number so far for this year.

The battery within the e-bike went through "thermal runaway", which occurs when too much heat builds up inside the battery due to damage, malfunction or misuse, leading to explosions or fires.