According to the news, the current iPhone 15 has added a new battery health management function, which is more absolute than the previous "optimized battery charging", charging up to 80% can directly stop charging, as shown in the figure:
* Due to the characteristics of lithium batteries, their power is kept in the range of 20%-80%, which can effectively extend the service life.
However, this feature is not found on other models that have been upgraded to iOS 17, and currently seems to be exclusive to the iPhone 15 series. Don't rush to open the spray, it is not ruled out that Apple will open for other models in the future, and the previous display is the same.
This feature has long been present on machines from other manufacturers and is even more flexible. Apple has a function that has no technology to speak of, and it will be launched in batches, maybe even exclusively, I don't know what kind of moth is in the whole thing.
In addition, the iPhone 15 series can also check the number of battery cycles. In ➫➫, you can preview its production date and first use date, as well as the number of cycles, as shown in the figure:
This function is not unusual in the Apple series, the MacBook series has long supported viewing the number of battery cycles, and it is more detailed, as shown in the figure:
It is important to note that one battery cycle refers to a complete discharge process. That is, regardless of the current amount of electricity, no matter how many times you charge it halfway, just discharge 100%, that is, a cycle.
For example, if your current battery is 60%, you use it to 10% and then charge it, and then use 50% again the next day after it is fully charged, at which point a cycle is completed.
The sheikh suggested that ordinary users do not need to pay attention to the above, just a battery, and they can't bear to replace it with all kinds of care. It's better to open it for use, it's really crotch-pulling and changing, it's not the whole original, it's too expensive, more than a hundred to change a large factory battery, even if it is changed for 4 years, it is cheaper than the original.