CCTV reports that leaving mobile phone chargers plugged into power outlets for extended periods has caused multiple fires. Fire departments warn that chargers left in sockets remain active, as they continue to draw current even when not connected to a device. Experiments conducted by firefighters showed that chargers left in an idle state maintain a surface temperature approximately 5 degrees Celsius higher than the ambient environment.
The constant heat generation accelerates the degradation of internal components and insulation materials. Firefighters demonstrated that short-circuiting damaged charging cables instantly produces sparks and smoke, which can ignite nearby flammable materials. Investigations into residential fires in Quanzhou and Yiyang confirmed that chargers left plugged in for long periods suffered from internal component failure, overheating, and short circuits, leading to property damage.
Authorities advise users to unplug chargers immediately after devices are fully charged. Furthermore, fire safety officials recommend using only original chargers and batteries. Users are also cautioned against charging devices near pillows, in direct sunlight, or in high-temperature areas like kitchens to prevent battery overheating and potential fire hazards.
