Apple phones are very sensitive to cold. Since cold weather will increase the electrolyte resistance of cell phone lithium batteries, the chemical reaction speed of the battery will also decrease. In order to protect the battery, the current generated inside the battery is also relatively reduced. Therefore, cold weather releases electricity from the cell phone battery, so Apple mobile phones are very afraid of cold.
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Don't expDo not expose the battery to high temperatures or intense cold. For example, during the dog days of summer, you should not leave your phone in the car to expose it to the scorching sun or take it with you; an air-conditioned room and place it in a place where the air conditioner blows directly. When charging, it is normal for the battery to be a little warm, but it should not withstand the “suffering” of high temperatures. To prevent this from happening, it's best to charge at room temperature and not cover the phone with anything.
The memory effect is an effect in which the contents of the battery crystallize due to battery usage. Generally, it only occurs in nickel-cadmium batteries, less so in nickel-metal hydride batteries, and does not occur in lithium batteries. . This happens because the battery is repeatedly partially charged andincompletely discharged. Battery capacity will be temporarily reduced, resulting in shortened talk time.
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The reason is: most mobile phone batteries are lithium-ion batteries, which generally consume more power in low temperature environments. If the temperature of the lithium-ion battery itself is below 10 degrees Celsius, it will stop working.
The acceleration of battery power consumption in low temperature environments is linked to the chemical properties of lithium batteries themselves. Generally speaking, when the mobile phone detects that the battery capacity is low and the current is low in raisound of low ambient temperature, the temperature protection circuit in the built-in battery protection board is automatically activated, and the mobile phone is automatically turned off.
Detailed information:
Positive and negative aspects of Lithium batteries Both poles are electrolytes. In use, the negative electrode generates electrons which pass through the electrolyte to the positive electrode, thus forming an electric current. Therefore, the generation of electric current is a chemical reaction process.
One of the factors that affects the rate of chemical reactions is temperature. When the ambient temperature is too low, the resistance of the electrolyte increases, the chemical reaction speed decreases, and the generated current is also relatively high. reduced. Therefore, the reason why the power consumption of the batteryie increases in low temperature environments is actually The current generated by the battery decreases, resulting in less available energy, making it appear to consume more power when in use.
As a result, the solution is not to try to turn on the phone on the spot, but to return to a normal temperature environment and wait a while before turning it back on. Do not turn on the phone as soon as you come indoors, because if you come back indoors from a cold outdoor environment, the warm air in the room will condense when it becomes cold and the cell phone will produce water vapor. If water vapor enters the motherboard, a fatal failure will occur. This is true not only for mobile phones, but also for any digital product.
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