What should I do if my iPhone shuts down automatically due to the cold weather?

Northerners rely on heating to survive the winter, while southerners rely on their righteousness to survive the winter, but iPhones can only give in. This cold wave is so severe that in the past few days, many netizens have reported that their iPhones have inexplicably shut down automatically, their iPads have run out of power and cannot be charged, and local repair shops cannot find any faults.

Actually, it's too cold! Due to the recent nationwide low temperatures, Apple's official website shows that the best operating environment for its electronic products is 0℃-35℃, while the best operating environment for MacBook is 10℃-35℃. However, many areas in the north are currently below -10℃, which is much lower than the best operating temperature for iPhone.

When the iPhone is at a temperature below 0℃, the ion diffusion of the positive and negative electrodes becomes worse and the discharge capacity becomes weaker, the system will recognize that it is out of power. The phone will then experience a large amount of "power jumps" in a short period of time, and may even trigger the battery self-protection mechanism to cause the phone to automatically shut down.

In addition to iPhones, Android phones are also affected by automatic shutdown. To be precise, all phones using lithium-ion batteries will encounter this situation.

The electrolyte inside the lithium-ion battery generates a potential difference between the positive and negative electrodes through chemical reactions, thereby generating current. In a low-temperature environment, the electrolyte will move very slowly, thus affecting the transfer activity of lithium ions between the positive and negative electrodes, resulting in a decrease in the battery's charge and discharge performance.

Don't worry, though; if your phone shuts down due to cold weather, it's only temporary and performance will return to normal once the battery temperature returns to normal operating range.

What to do if you need to use your phone urgently?

If you want to restore to normal as soon as possible, you can use a hair dryer to blow the back cover of your iPhone or iPad until it is slightly hot, that is, about 40 to 50 degrees . In fact, in addition to the discharge process of lithium-ion batteries being affected by temperature, the charging process is also affected by low temperature. For example, iPads often fail to charge at low temperatures. In addition to using a hair dryer as mentioned above, you can also use a hand warmer on the back cover to basically solve the problem.

The above information is provided by eXiudashi (WeChat ID: exiudashi).

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