On all iPhone 15 models, Apple can check the number of battery cycles completed, an important indicator of the condition of the device's battery.
Previously, finding out an iPhone’s battery cycle count wasn’t an option in Apple’s mobile operating system, and curious users had to resort to unofficial methods (for example, through third parties like CoconutBattery application) or copy and paste the analysis into Notes and search for "last_value_CycleCount".
While iPhone battery health has been available for years by determining the Maximum Capacity percentage (Settings -> Battery -> Battery Health & Charging), the charge count is a valuable addition to determining battery health. index. A charge cycle is recorded each time all of the battery's capacity is used up, and the capacity decreases over time. From Apple's battery information webpage:
#Apple lithium-ion batteries work on a charge cycle. You have completed a charge cycle when you have used (discharged) electricity equal to 100% of the battery's capacity, but not necessarily all from a single charge. For example, you might use 75% of the battery's capacity one day and then fully charge it overnight. If it is used 25% the next day, the total discharge will be 100%, and the two days combined will be at most one charging cycle. It can take several days to complete a cycle. Any type of battery will reduce after a certain amount of charging. When using lithium-ion batteries, capacity decreases slightly with each complete charge cycle.
On iPhone 15, you can also set a strict 80% limit on battery charging, which can improve battery life by reducing the time it takes to fully charge.
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