Drivers have been warned to remove vapes and e-cigarettes from their vehicles before Monday, as soaring temperatures could cause the lithium-ion batteries inside them to overheat, catch fire, or even explode, according to safety experts.
Why Vapes Pose a Risk in Hot Cars
The alert comes as the UK braces for another bout of warm weather over the weekend and into Monday. Stationary cars can heat up dramatically, even when outside temperatures are moderate. For example, on a day with mid-20s Celsius outside, the interior of a parked car can reach dangerous levels within minutes, especially if left in direct sunlight with windows shut.
Vapes and e-cigarettes contain lithium-ion batteries, which are susceptible to extreme temperatures. The Road Safety Authority advises motorists not to leave heat-sensitive items inside cars during hot spells. Battery manufacturers similarly recommend avoiding subjecting lithium-ion batteries to excessive heat.
Thermal Runaway: The Chain Reaction That Can Cause Fires
Lithium-ion batteries can undergo a process called thermal runaway, a chain reaction that causes them to overheat rapidly, emit flammable gases, and in some cases ignite or explode. The London Fire Brigade reports that damaged, defective, or overheated lithium-ion batteries have been responsible for an increasing number of fires in recent years.
Other Devices Also at Risk
The guidance applies not only to vapes but also to other gadgets containing lithium-ion batteries, such as power banks, laptops, and spare rechargeable batteries. Leaving them in a hot car for extended periods can reduce battery life and, in rare cases, pose a safety risk.
Simple Prevention Steps
Manufacturers typically recommend storing vapes in cool, dry conditions, away from direct sunlight, radiators, and other heat sources. Drivers are urged to carry out a quick check before locking their vehicle. Removing vapes and other battery-powered devices takes only a few seconds and could help avoid unnecessary damage or a hazardous situation.
With warmer conditions expected to persist, safety experts advise taking battery-powered devices with you whenever you exit the vehicle.
