E-bike fires from thermal runaway kill people in apartments
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Lithium-ion batteries in cheap e-bikes and scooters — especially those with third-party or aftermarket batteries — undergo thermal runaway, producing 1,000degF fires that fully engulf a room in under 90 seconds. So what? Unlike a kitchen fire or electrical short, these fires cannot be extinguished with standard fire extinguishers and produce toxic hydrogen fluoride gas. So what? In dense urban housing where e-bikes are stored indoors (because they get stolen outside), a single battery failure kills not just the owner but neighbors in the building. So what? FDNY reported 268 e-bike fires in NYC in 2023, killing 18 people, making it the city's leading cause of fire deaths that year. So what? Landlords and housing authorities now ban e-bikes from buildings entirely, punishing delivery workers who depend on them for income. This persists because there is no federal safety standard for e-bike batteries — UL 2849 certification is voluntary, and the vast majority of e-bikes sold on Amazon and Alibaba are uncertified. CPSC lacks the budget and authority to inspect imports at scale.
Evidence
FDNY reported 268 fires and 18 deaths from lithium-ion battery incidents in 2023, up from 220 fires and 6 deaths in 2022. NYC Local Law 39 (2023) requires UL certification but enforcement is minimal. Consumer Reports tested 20 top-selling Amazon e-bikes in 2023 and found only 3 had UL 2849 certified batteries. CPSC issued recalls for 34 e-bike/scooter models in 2022-2023.