Although you can also check the battery health of the iPhone through various apps, in general, it is the most accurate to check through the phone settings.
We can generally go to [Settings]->; [Battery] > [Battery Health] > According to the "maximum capacity", the percentage value represents how much your iPhone battery has decayed. The closer the value is to 100%, the closer it is to a brand-new battery.
From the above picture, the battery health of iPhone 1 1 is 98% after being used for half a year.
Although the iPhone simply shows the remaining percentage (maximum capacity) of battery health, and does not give other information such as battery cycle times or battery life, Apple officially suggests that this figure shall prevail in warranty and battery replacement. During the warranty period, the battery can be replaced free of charge if its health is less than 80%.
It should be said that this figure is relatively accurate. If your battery is in poor health, it means that the battery is really consuming quickly, or there is something wrong with the hardware.
This question has been badly asked on the internet. Among many netizens, some people have used it for a year, and the battery health still remains amazing100%; Some people only use 80% after half a year, so there is really no fixed standard for how much to use, because it has a lot to do with everyone's mobile phone usage habits.
However, based on my own experience of concise scientific guidance, I think that if the iPhone is used for one year, it is still acceptable if the battery health is still above 90%; If it is above 95%, it will be quite good; If the health degree is only 85%, it will be consumed a little quickly. Consider changing habits or replacing batteries.
As for some people, the battery health dropped from 100% to 95% in just one or two months. Is this not normal? Personally, I suggest you observe it for a while and pay attention to your habit of using iPhone. If the health of the iPhone battery has dropped below 90% after half a year of use, then it is necessary to consider replacing it.
Help you summarize the relationship between iPhone battery health and time:
Apple's official suggestion is that when the maximum battery capacity (also known as battery health) drops below 80%, the battery needs to be replaced. Of course, this refers to the replacement of batteries during the warranty period. According to your own habits, no matter how healthy the battery is, it doesn't need to be replaced if you can maintain normal daily charging.
This is because some people only have 70% battery health, but after the warranty period, they don't often use their mobile phones, so they can maintain 70% battery capacity by charging once a day. Since the dosage is so light, don't worry, just keep using it.
Of course, if you often feel that the battery of iPhone is not enough, then even if your health is above 80%, you can consider replacing it with a new battery to increase the extra use time. As for more than 90% of the batteries are healthy, if you really think that the batteries are not enough, it is not recommended to change them, because they may not be improved, and the battery life performance of the last two generations of iPhone is really not so good.
Unless your budget is really tight (for example, the price of replacing the original battery for iPhone 1 1 9 yuan is 51), it is recommended to replace the original battery for iPhone.
The reason is that replacing the third-party battery may continue to be used, but the iPhone may pop up a warning, or the battery health may not be checked. Even if these are normal, the quality of third-party batteries is different, and the third-party batteries are often replaced quickly, and even extreme cases such as fire or explosion of mobile phone batteries occur. So users who want to worry about it should go directly to the original battery.