UL Solutions issues battery fire prevention advice amid rising household use
Iain Hoey
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Lithium-ion battery safety under review
UL Solutions has issued advice on preventing fires linked to rechargeable lithium-ion batteries, calling for greater awareness of thermal runaway and its hazards.
The organisation said these batteries power millions of everyday devices, including phones, laptops, tools and electric bikes, making household exposure widespread.
Thermal runaway is described as a self-heating process that can cause extreme temperatures, smoke, toxic off-gassing or explosions.
UL Solutions stated that understanding and prevention are key to protecting people and property from these risks.
Reported decline in lithium-ion related deaths
According to UL Solutions, data from the Fire Department of the City of New York shows deaths related to lithium-ion battery fires fell from 18 in 2023 to six in 2024.
The company said this reduction demonstrates the potential value of public education and safer charging practices.
It added that rechargeable devices are often scattered across homes, creating multiple potential ignition points.
A recent case in Massachusetts, where a resident suffered a minor burn from an exploding battery, highlighted the dangers of faulty or improperly charged products.
UL Solutions said the incident underlines the importance of using certified batteries and following storage and charging guidance.
Safety guidance from UL Solutions
UL Solutions recommends choosing batteries certified to its standards and looking for the UL Mark.
It also advises using only manufacturer-approved chargers, monitoring devices for signs of overheating or bulging, and calling emergency services immediately if a fire starts.
The organisation noted that lithium-ion fires can release toxic gases and must be handled by professionals.
In a related publication, UL Solutions explained that thermal runaway has also become a critical issue for airline staff and passengers.
Airlines have introduced policies on carrying lithium-ion devices, with Southwest Airlines requiring power banks to be kept visible during flights.
Tracking incidents to improve awareness
UL Solutions continues to track global lithium-ion incidents to understand where risks occur and how to mitigate them.
The company encouraged consumers to check battery certifications using its Product iQ database and to consult the Battery Safety Testing and Certification webpage for further information.
It said that raising awareness and applying good practice at home and while travelling can prevent injuries and reduce fire risk.
Relevance for fire and safety professionals
Lithium-ion battery fires present a growing concern for fire investigators, certification bodies and safety educators managing consumer awareness campaigns.
The reduction in reported fatalities in New York demonstrates that public information and standards-based certification can have measurable safety outcomes.
Guidance from UL Solutions may assist fire departments, facility managers and compliance officers in promoting best practices for charging, storage and equipment approval.
Airline and transport safety regulators may also reference the outlined measures when reviewing carriage policies for portable electronic devices.