Will a Power Bank Explode If Left in the Car During Summer?
3 Answers
Leaving a power bank in the car during summer is highly likely to cause an explosion. Here are the reasons why a power bank might explode: 1. Inferior or refurbished battery cells can easily cause explosions: Many recycled old 18650 battery cells are reassembled into power banks. Such low-quality power banks not only fail to guarantee charging efficiency but may also lead to dangerous consequences like fires and explosions. 2. Poor-quality circuit boards with malfunctioning regulation functions: Substandard capacitors and circuit boards, combined with inferior battery cells, significantly increase the risk of fire and explosion. 3. High temperatures and open flames can easily cause power banks to explode: Some people place power banks in high-temperature or flammable environments, which is very dangerous. High temperatures and open flames can easily lead to explosions, even with the highest-quality power banks. Therefore, it is essential to remain vigilant when using them.
As a driver who frequently pays attention to safety issues, leaving a power bank in the car during summer does pose an explosion risk, as lithium-ion batteries are prone to thermal runaway under high temperatures, leading to internal fires. The temperature inside a car can easily soar to 60-70°C under direct sunlight, far exceeding the operational temperature range of most power banks. Numerous reports have mentioned similar cases, such as a friend's car last year where a forgotten power bank caused a window to shatter—fortunately, no one was injured. It's advisable to avoid leaving power banks in the car whenever possible. If unavoidable, prioritize placing them in cooler areas like the trunk or use specialized heat-insulating cases. Developing a habit of taking them with you when exiting the car can effectively prevent accidents, and choosing brands with safety certifications is also crucial.
I always carry a power bank when driving for leisure, but leaving it in the car during summer is extremely dangerous—I learned this the hard way. Last time I forgot to take it out, and the power bank's casing warped, nearly causing an accident. The car interior heats up like a steamer, and batteries can short-circuit, expand, or even explode when overheated. After seeing fellow car enthusiasts share similar mistakes online, I changed my habits—now I either stash the power bank in my bag or place it in a cool spot when leaving the car. Don’t underestimate this issue; excessive heat also accelerates battery degradation. Now I remind myself: never lazily leave a power bank in the car—taking it with you is the safer choice.
