In Toronto, Fire Chief Jim Jessop warns that a room can reach flashover, where everything inside is fully ablaze and survival is impossible, within five minutes during a typical fire. However, a lithium-ion battery fire, which has seen a 200% increase in occurrences since 2022, can escalate to flashover in just 90 seconds. Toronto Fire reported 86 lithium-ion battery fires as of Aug. 19, surpassing the 91 incidents recorded in the entire year of 2025.
The increased prevalence of lithium-ion battery fires is concerning due to their rapid escalation and unpredictability. These batteries, commonly found in various devices such as e-bikes and e-scooters, pose unique challenges to firefighters. Fires involving these batteries are more intense and can emit toxic chemicals, making them difficult to control. Moreover, the batteries have the potential to explode, endangering first responders.
Toronto Fire has encountered challenges in managing battery fires, especially in high-rise buildings and underground parking lots. Fire Chief Jessop urges federal and provincial authorities to expedite the implementation of regulations governing battery safety standards. Health Canada and the Ontario fire marshal are exploring potential regulatory changes to address the risks posed by lithium-ion batteries.
Randy Narine, president of Clean Core Research, explains that lithium-ion battery fires result from a gradual buildup of heat leading to a sudden burst of flames. Mistreatment of batteries, whether through physical damage or improper charging practices, can trigger these fires. Signs of battery malfunction, such as white smoke emissions, should be taken seriously as they indicate a potential thermal runaway situation.
Educating the public on safe battery handling practices is crucial in preventing these incidents. Fire Chief Jessop emphasizes the importance of proper charging and disposal methods to mitigate the risks associated with lithium-ion batteries. While awaiting regulatory actions, promoting awareness and responsible battery usage remain a priority for the local authorities.