What is the decline in the health of Apple's mobile phone battery?

The battery health of Apple's mobile phone has been declining, which means that the life of the mobile phone battery is decreasing. The life of lithium-ion battery depends on the battery quality and personal use. General bad habits will accelerate the consumption of batteries, such as playing while charging, and charging when the temperature is too high or too low.

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At present, the life of lithium batteries is basically reflected by the number of cycles, such as notebooks, mobile phones and lithium-ion electric vehicles. A complete charging process counts as a cycle. When the number of cycles reaches 300 to 500, the capacity of lithium battery will decrease, which is a kind of physical damage and basically inevitable.

After the update, Apple's iOS also supports checking the wear and tear of the battery, and uses the health degree in the system settings to indicate the remaining battery life. In the setting of Apple, Apple takes 80% as the threshold. If the loss exceeds 20%, the actual capacity will not reach the nominal 3000 mA, or even lower than 2400 mA.

Mobile phones basically use lithium-ion batteries. Proper use of lithium-ion battery is very important to prolong its life. According to the requirements of different electronic products, it can be made into flat rectangular, cylindrical, rectangular and button-shaped batteries, and several batteries are connected in series and parallel.