This summer, a heat wave swept across the northern hemisphere, with much of Europe reaching the highest temperature ever recorded, even exceeding 40°C. Arun Maini, a British digital blogger with 10 million followers, said on Twitter that the high temperature caused the batteries of three Samsung mobile phones in his hand to explode.
Arun Maini is the Mrwhosetheboss on YouTube, and he is very popular for his frequent reviews of Samsung and Apple phones. Judging from the pictures posted, these three mobile phones are all old devices, products released by Samsung three years ago, and the latest is Samsung S10.
Generally speaking, the normal working temperature of a lithium battery is 0~40 degrees Celsius. Generally, the external temperature of the mobile phone exceeds 30 degrees Celsius. It happens that the mobile phone is still running at high power consumption at this time, and the high temperature inside the mobile phone will accelerate the battery consumption.
I’ve just found out that 3 of my Samsung phones’ batteries have blown up because of the recent UK heatwave
Not a single other brand has 🤔 pic.twitter.com/LI6Qrz8xSv
— Arun Maini (@Mrwhosetheboss) July 27, 2022
Bloated batteries are actually a common problem with most older phones, whether they’re made by Samsung or not. Since the lithium-ion battery is mainly composed of lithium polymer, after long-term use, the battery medium may be denatured to a certain extent. If it encounters a high-temperature environment, the battery may bulge.
In addition, the cell phone battery bulge is also closely related to the power control circuit of the cell phone. When the phone is fully charged, the battery’s electronic control circuit stops charging. If the power control circuit design of the mobile phone is flawed, it can lead to excessive charging and discharging, which in turn can cause the battery to bulge.
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