How to Check Battery Health on iPhone

Kyle Wood

iPhone, Tutorials

Checking the battery health of your iPhone is important to ensure its optimal performance and longevity. In this tutorial, we will guide you through the steps to check the battery health on your iPhone.

Step 1: Open Settings
To begin, unlock your iPhone and locate the Settings app on your home screen. The Settings app is represented by a gear icon. Tap on it to open the settings menu.

Step 2: Find Battery
In the Settings menu, scroll down until you find the “Battery” option. It is usually located near the middle of the menu. Tap on it to access battery-related settings.

Step 3: Check Battery Health
Inside the Battery settings, you will see various options related to battery usage and performance. Look for the “Battery Health” section and tap on it.

Battery Health Information

Once you are in the Battery Health section, you will be able to view vital information about your iPhone’s battery.

Battery Percentage

The first piece of information displayed is your current battery percentage. This indicates how much charge is left in your iPhone’s battery at that moment.

Maximum Capacity

Below the battery percentage, you will see a value for “Maximum Capacity.” This figure represents your iPhone’s battery capacity compared to when it was new. A higher percentage indicates a healthier battery.

Peak Performance Capability

Next, you’ll find information about Peak Performance Capability. This feature was introduced with iOS 11.3 and allows you to check if there are any performance management features active on your device due to an aging or degraded battery.

  • If it says “Your iPhone has experienced an unexpected shutdown,” it means that performance management has been applied.
  • If it says “This iPhone has experienced an unexpected shutdown because the battery was unable to deliver the necessary peak power,” it means that your battery health is significantly degraded, and you may need to replace it.
  • Otherwise, if it says “Your battery is currently supporting normal peak performance,” it means your battery is functioning as expected.

Step 4: Interpret Battery Health Data
Based on the information provided in the Battery Health section, you can determine how well your iPhone’s battery is performing.

If your Maximum Capacity is close to 100% and there are no performance management features active, then your battery health is excellent.

On the other hand, if your Maximum Capacity is considerably lower than 100% or if performance management features are applied, you might consider replacing your iPhone’s battery. A degraded battery can lead to unexpected shutdowns and poor overall performance.

Step 5: Additional Options
In addition to checking the battery health, the Battery settings also offer a few other options worth exploring:

  • Battery Percentage: You can toggle this option on or off based on whether you want to display the battery percentage in your device’s status bar.
  • Battery Usage: This option provides detailed information about which apps are using significant amounts of power on your device. It can help you identify apps that drain your battery quickly.


Checking the battery health on your iPhone is crucial for maintaining its overall performance and ensuring a longer lifespan. By following these steps in Settings, you can easily monitor your battery’s health and take appropriate action if necessary.

Remember that a healthy battery not only extends the usage time of your iPhone but also enhances its reliability. So keep an eye on your iPhone’s battery health regularly!

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