The Settings app on your iPhone allows you to check the battery’s condition.
With each charge, the iPhone battery’s capacity gradually decreases, although it is still regarded as excellent as long as it stays over 80%.
You must have iOS 11.3 or later installed on your iPhone in order to check the status of your battery.
It’s true: Your iPhone’s battery deteriorates over time, and once the deterioration starts, there is no way to reverse it.
The battery in your iPhone gradually loses its capacity to store power as it ages (and as you keep charging it), so it won’t last as long on a single charge each day.
This is inevitable, so once you start using your battery, you can’t keep it at 100% health. Apple does, however, provide a mechanism for you to keep an eye on the condition of your battery so you can know when it might be time to replace it.
Here’s how to check the condition of your iPhone’s battery.
How to Assess the Battery Life of Your iPhone
You can view your battery health in Settings on an iPhone running iOS 11.3 or above. You must upgrade your iPhone if it runs an older version of iOS.
- Start the Settings application.

The Settings app on your iPhone allows you to check the battery’s condition. Source: Stefan Ionescu
Also Read: Step-by-Step Guide to On Battery Percentage in iPhone 13
What Does a Healthy iPhone Battery Mean?

The remaining battery capacity of your iPhone is one of the battery health statistics displayed on the Battery Health page.
Apple’s explanation states that the Maximum Capacity is “a comparison of the battery’s current capacity to when it was new. Fewer hours of use between charges may be the result of lower capacity.” The more near 100% your device is, the better.
According to Apple, the battery in your phone is “designed to maintain up to 80% of its original capacity after 500 full charge cycles,” or around two years of operation.
The Settings app on your iPhone allows you to check the battery’s condition.
Therefore, anything above 80% is regarded as fine; but, when the battery falls below this mark, it is regarded as worn, and you should think about changing it because it will deteriorate much more quickly.
It’s possible that the Optimized Battery Charging function is on if you find that your iPhone won’t charge past 80%.
You may get a more thorough description of how your battery is doing under the Peak Performance Capability section. Here is what each of them means:
Right now, your battery can handle regular peak performance. This indicates that your battery is in good operating condition and has the maximum capacity possible. There are a few things you can do to maintain the battery health of your iPhone to keep it that way for a long.
As your iPhone battery chemically ages, built-in dynamic software and technology will assist offset any performance effects that could be seen. You might see this notice when your battery degrades. This indicates that your battery is starting to deteriorate, which might impair performance.
This iPhone went down unexpectedly because the battery couldn’t provide the required peak power. In order to assist avoid this from happening again, performance management has been implemented.
This notification is a sign that your iPhone’s battery is having problems, therefore it might be time to update soon. Performance problems, such as slow loading times, are probably going to be present.
The condition of your battery has substantially declined. When the battery capacity is under 80%, the iPhone will show this warning, which can have a big impact on how well your phone functions regularly.
You can’t check the battery’s status in Settings if your iPhone is an older model and can’t be upgraded to iOS 11.3. You may, however, request that Apple perform a diagnostic test on your battery on your behalf. You may accomplish this by going to an Apple Store or by contacting their online customer service.
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