If you’ve traveled by plane recently, you’ve likely noticed the increased messaging around removing phone and battery chargers from checked baggage. This is because of their capability to easily overheat and, potentially, start fires – not just in luggage, but in power tools, electric cars, e-bikes, and e-scooters.
When lithium-ion batteries are working optimally, the movement of electrons and lithium ions that produces electricity also produces a small amount of heat that dissipates. Unpredictably, though, a process called thermal runway can occur. In thermal runaway, the lithium-ion battery self-generates more heat than what can be dissipated. Should that happen, smoke, fire, and explosions can result.
According to the New York Fire Department, in 2023 there were 268 fires – at least one destroying an entire city block – caused by lithium-ion batteries. These fires were all preventable.
The FDNY has created a detailed list of best practices to keep your devices and your community safe. These tips cover things like:
- Where to store your phone and charger
- How to detect if your charger might be at risk for thermal runaway
- What to look for when purchasing batteries and battery-powered devices
- How to safely dispose of batteries
Review the entire list on the FDNY’s website.
