Batteries are the most vulnerable point of a modern smartphone. If previously a push-button phone needed to be charged only 1-2 times a week, then a smartphone needs almost daily recharging.
Unfortunately, even the correct use and implementation of all the company's recommendations cannot guarantee that the iPhone battery will not have to be replaced over time. But, it is important to understand the state of the battery in order to know whether it needs to be replaced or not.
As with any modern phone, the iPhone battery tends to age and wear out. And when the situation reaches a critical level, the user will definitely notice it. For example, a smartphone may turn off randomly or charge very slowly. Fortunately, you don't have to wait for a critical condition thanks to the ability to check charge cycles on the iPhone.
What is a charge cycle?
The charging cycle is a strictly limited resource that is best monitored at all times. Cycle counting means that the battery is fully charged and discharged, or when it is fully consumed from 0 to 100%. The cycle may not be interrupted if the battery has reached a full charge, or it may consist of several different intervals at once. But, in any of these cases, the cycle should be considered the discharge of the full capacity of the battery.
So, for example, after 500 charges, the level begins to drop by 10-15%. But, this moment depends entirely on the degree of use of the device. Such a cycle can be completed for one user in 1 year, and for another in 2 years. And after a while after that, the capacity may decrease to 50-60%.
Service centers strongly recommend monitoring this indicator and thinking about replacing the battery after passing a certain number of cycles.
Some users are mistaken in the belief that charging the battery does not fully save cycles, but this is not at all the case.
The battery is capable of delivering energy at an indicator from 30 to 80%. But, at the same time, the battery will not be subject to such stress as when discharged to 0%. Therefore, it is not recommended to do this. In addition, with constant recharging of the smartphone during the passage of such 1000 cycles, the capacity will be lost by only 10%.