In winter in the north, the mobile phone will soon run out of power. Are mobile phones afraid of cold, too? Why is this?

People living in the north may have noticed that when the weather becomes extremely cold in winter, the power consumption of mobile phones will obviously accelerate. Especially when you use your mobile phone outdoors, you will lose 20% of your power after a few minutes of brushing.

In fact, not only people are afraid of the cold, but also mobile phones. In fact, mobile phones are very expensive, not only not resistant to falling, but also generally only work at -20~50 degrees Celsius. This is the extreme temperature. Generally, when the temperature is below-10 degrees or above 40 degrees above zero, the mobile phone will not work normally. Generally speaking, when the temperature is lower than 0℃, the performance of mobile phone battery will decline. When the body temperature is higher than 40 degrees Celsius, it is difficult for the mobile phone to dissipate heat, and there will be performance degradation such as lag and slow operation.

At present, lithium-ion batteries are widely used in mobile phones. Lithium-ion battery was invented in the 1990s, which relies on the chemical reaction between cathode material, cathode material and electrolyte to store and release electric energy.

Moreover, in the low temperature environment, especially below 0℃, the chemical reaction speed inside the lithium battery will be very slow, which will lead to the decline of the charging and discharging performance of the battery and make the battery not durable. I feel that my mobile phone is freezing to death. In fact, the same lithium-ion battery charging library will also encounter the phenomenon of rapid power failure in winter.

In winter, the power consumption of mobile phones is too large, which is actually the reason why the activity of lithium-ion batteries decreases and the power consumption of mobile phones decreases in low temperature environment. Figuratively speaking, when the weather gets cold, the molecules in the battery are not active enough to provide the energy they deserve, and the total power of the battery will drop. I feel that your mobile phone is using electricity faster and faster. In addition, when the temperature is too low, no charge will enter.

The lower the temperature, the faster the power consumption. In the cold winter in the north, the outdoor temperature is almost below 0℃. In many cases, you will find that your mobile phone is dead after only one use 10%.

It is suggested to put a thick protective case on the mobile phone in a low temperature environment, which can not only prevent the external low temperature, but also prevent the mobile phone from losing too much heat, so that the battery temperature will not be too low. It is equivalent to wearing gloves on your hands, which can alleviate the phenomenon of rapid power failure in winter to some extent.

It is worth noting that if the mobile phone is used for too long when it is too cold, the life of the lithium battery will be shortened. Some iPhone users may encounter low-temperature automatic shutdown, which is a low-temperature protection function set by mobile phone manufacturers to protect the battery from low temperature. Android phones generally have this setting, but the critical temperature of low temperature protection is relatively low, so it is rare to encounter the phenomenon of freezing shutdown.

In fact, working at high temperature for a long time is also harmful to lithium batteries. If the body temperature is too high, the system will not only run slowly, but also charge slowly, and the system may shut down and restart. In order to protect the lithium-ion battery, please avoid playing with your mobile phone violently while charging, and avoid exposure to strong sunlight.