The northerners depend on the heating for the winter and the southerners rely on the righteousness for the winter. This cold weather is really fierce. In the past few days, we have seen many netizens saying that their iPhone's inexplicable auto-shutdown has caused the iPad's battery power to go unfilled, and that it is impossible to find any faults in local repair shops.
In fact, it is too cold! As a result of the recent national low temperature, Apple's official website on the operating environment requirements of its electronic products show that the best operating environment for the iPhone, iPad, iPod and Apple Watch is 0 °C -35 °C, while the MacBook's best operating environment is 10 °C-35 °C. At present, many regions in the north are below -10°C, and the temperature is lower than the iPhone's best operating temperature.
When the iPhone is below 0°C, the ion diffusion of the positive and negative electrodes becomes worse and the discharge capacity becomes weaker, and the system will recognize that there is no electricity. Then the mobile phone will appear a lot of “jumping†in a short time, even triggering. The battery self-protection mechanism automatically shuts down the phone.
In addition to the iPhone, Android phones will also be affected by the automatic shutdown. To be precise, mobile phones using lithium-ion batteries will encounter such a situation.
The electrolyte inside the lithium-ion battery undergoes a potential difference between the positive and negative electrodes due to the change in the chemical reaction to generate an electric current. At low temperatures, the electrolyte moves relatively slowly, affecting the transfer activity of lithium ions between the positive and negative electrodes. Causes the battery charge and discharge performance to decline.
However, there is no need to worry too much. If the phone is turned off due to cold weather, this situation is only temporary. When the battery temperature returns to the normal operating range, its performance will also return to normal.
What to do with your mobile phone?
If you want to resume normal as soon as possible, you can use a hair dryer to blow the back cover of the iPhone or iPad to 40 degrees to 50 degrees . In fact, in addition to the temperature during the discharge of lithium-ion batteries, the charging process is also affected by low temperatures, such as the iPad at low temperatures. Under the circumstances, there are many cases in which charging is not possible. In addition to using the hair dryer mentioned above, you can also use the hand warmer to put it on the back cover . The problem can be basically solved.
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