How to Deal with an Overheating Smartphone - Part 2

As promised, this is the second part. To recap from last time, a 10-yen coin is made of copper, which has excellent thermal conductivity, allowing it to absorb heat from your smartphone. This method was inspired by seeing my older brother, who works as an engineer, place several 10-yen coins on hot machinery to dissipate heat. There are a few smartphone cooling gadgets that utilize this principle. It's already a proven and effective method used commercially. If you're interested, I recommend searching for 'heatsink copper smartphone'! 【Cooling Sheets】 Applying commercially available cooling sheets to your smartphone. Pros: Instant effect, reliably cools the smartphone, readily available. Cons: Disposable, so not cost-effective in the long run. Can cause condensation on the phone. 【Handheld Cooling Fan】 Using a small, portable fan to cool your smartphone. *Peltier element fans are recommended. Pros: Surprisingly effective at cooling. Widely available in physical stores, making them easy to buy. Wide range of prices and types. Cons: Can be inconvenient to use. Small fans themselves carry a risk of ignition. By the way, a Peltier element is a semiconductor electronic component that becomes cold on one side and hot on the other when electricity is passed through it.