Hot weather causes many people who work outdoors to carry compact handheld fans to blow cooler air.
The problem is, when using these handheld fans, users must also pay attention to safety issues to avoid accidents such as fire and explosion. This is a fairly common accident around the world, even Japan's Amagasaki City Fire Department recently issued a warning that if a portable fan falls to the ground or has other strong impacts, stay away.
This stems from the fact that the internal lithium battery can be damaged, causing the liquid inside to leak out and catch fire, causing an explosion. In severe cases, it can cause fire.
In addition, charging lithium batteries can also be dangerous. In fact, most lithium battery fires occur while charging, so users should avoid placing them next to their pillows while charging. Lithium batteries also cannot withstand high temperatures, so they should be kept away from direct sunlight, not to mention placed in a closed car in the hot heat.
To be safe, experts recommend that users buy from trusted brands and avoid strong collisions. After that, if it cannot be charged, the fan stops working, the battery overheats, or the battery expands and deforms, it is better not to use it. When discarded, it must also be disposed of in accordance with the relevant recycling regulations and must not be thrown away arbitrarily.
Reports indicate that in recent years there have been many fires caused by lithium batteries. This is not necessarily related to handheld fans, but any device that uses lithium batteries such as smartphones should also be considered.

