What Is Optimized Battery Charging on iPhone 7: A Guide

Optimized Battery Charging is a feature that was introduced to iPhone users with iOS 13, and it’s designed to extend the overall battery life of your iPhone 7. It learns your daily charging habits and waits to finish charging past 80% until you need to use your iPhone. After enabling this feature, your iPhone will charge normally until it reaches 80%, and then it will slow down the charging process, waiting to top off the last 20% until it predicts you will unplug your iPhone based on your previous habits.

After you complete the action of enabling Optimized Battery Charging, your iPhone will regulate its charging process more efficiently. This means you will likely notice that your phone doesn’t quickly charge to 100% overnight. Instead, it will hold at 80% for most of the night and only finish charging right before you typically wake up and unplug it. This helps to reduce battery aging and can lead to a longer overall battery lifespan.


Battery health is a hot topic among iPhone users, and for a good reason. We rely on our smartphones for almost everything, from simple communication to managing our daily tasks and entertainment. It’s paramount that our devices sustain a charge throughout the day. As our iPhones age, their ability to hold a charge diminishes. This is where iPhone’s Optimized Battery Charging feature comes in handy, especially for iPhone 7 users.

The feature is particularly relevant to those who charge their phones overnight. Without it, your phone charges to 100% and stays connected to the charger for several hours, which can degrade the battery over time. But with Optimized Battery Charging, your iPhone learns your daily charging routine and optimizes the charging process to reduce battery wear. It’s a smart feature that can make a significant difference in your iPhone’s battery lifespan. So, if you’re an iPhone 7 user looking to get the most out of your device’s battery, this feature is definitely for you.

Step by Step Tutorial: Enabling Optimized Battery Charging on an iPhone 7

Before we dive into the steps, it’s important to note that following these steps will help your iPhone 7 manage its charging process better. It should prolong the battery’s effective lifespan by reducing the time your iPhone spends fully charged.

Step 1: Open Settings

Open the Settings app on your iPhone 7.

In the Settings app, you’ll find a variety of options for customizing and controlling your iPhone’s functionality. For our purposes, you’ll need to navigate to the Battery settings.

Step 2: Tap on Battery

Scroll down and tap on the Battery option.

The Battery section provides insights into your iPhone’s battery usage and health. It’s also where you’ll find the setting for Optimized Battery Charging.

Step 3: Select Battery Health

In the Battery section, tap on Battery Health.

Battery Health gives you information about your iPhone’s battery capacity and its peak performance capability. This is also where the Optimized Battery Charging toggle is located.

Step 4: Toggle Optimized Battery Charging to ON

Find the Optimized Battery Charging option and switch it to the ON position.

By toggling this on, you’re allowing your iPhone to intelligently manage its charging process, which should help maintain battery health over time.


Prolongs Battery LifespanEnabling Optimized Battery Charging helps reduce the wear on your iPhone’s battery by limiting the time it spends at a full charge. This can lead to a longer overall lifespan for the battery, meaning it will hold a charge effectively for a longer period.
Improved Battery HealthBy managing the charging process and reducing stress on the battery, this feature can help maintain the battery’s health, ensuring it operates at peak performance for as long as possible.
ConvenienceThe feature is designed to learn your habits, so it only finishes charging to 100% when it predicts you will use your iPhone. This means you don’t have to change your charging habits to benefit from the feature.


Not Instantly EffectiveBecause Optimized Battery Charging is designed to learn your habits, it might not be immediately effective. It may take some time for your iPhone to learn your routine.
Potential InconvenienceIf your schedule changes or you need to charge your phone quickly, you might need to manually override the feature to allow your phone to charge to 100% immediately.
Limited by Charging HabitsIf you do not have a regular charging routine, the feature may not work as effectively, as it relies heavily on predicting when you will start using your iPhone.

Additional Information

While Optimized Battery Charging is a powerful feature, there are other practices that you can adopt to ensure your iPhone 7’s battery remains in tip-top shape. For instance, avoid exposing your iPhone to extreme temperatures, both hot and cold, as they can damage the battery. Also, if you’re planning to store your iPhone for a long period, do so with the battery half-charged. This helps to prevent the battery from falling into a deep discharge state, which can lead to a shorter lifespan.

Additionally, it’s worth noting that Optimized Battery Charging is most effective when you charge your iPhone 7 in a location with a consistent Wi-Fi or cellular connection. This helps your iPhone to more accurately predict your routine. Also, remember that you can always temporarily override the Optimized Charging feature if you need a quick full charge by tapping on the charge icon on the Lock screen when your iPhone is plugged in.


  1. Open Settings.
  2. Tap on Battery.
  3. Select Battery Health.
  4. Toggle Optimized Battery Charging to ON.

Frequently Asked Questions

What is Optimized Battery Charging?

Optimized Battery Charging is a feature designed to extend the overall battery life of your iPhone by regulating the charging process.

How does Optimized Battery Charging work?

The feature learns your daily charging routine and optimizes the charging process to reduce battery aging, finishing charging past 80% only when it predicts you will use your iPhone.

Can I use Optimized Battery Charging on an iPhone 7?

Yes, Optimized Battery Charging is available on iPhone 7 devices with iOS 13 or later.

Will Optimized Battery Charging affect my iPhone’s performance?

No, the feature only affects the charging process and does not impact the performance of your iPhone during regular use.

Can I turn off Optimized Battery Charging if I don’t like it?

Absolutely, you can switch off Optimized Battery Charging at any time by going to Settings > Battery > Battery Health and toggling it off.


Optimized Battery Charging on an iPhone 7 is a nifty feature that, when used correctly, can greatly extend the lifespan of your device’s battery. It’s a smart and convenient tool that takes the guesswork out of maintaining your iPhone’s battery health.

While it does have some limitations and might not be immediately effective, the benefits it offers in the long run make it a worthwhile feature for any iPhone 7 user. So give it a try, and let your iPhone take care of its own battery, ensuring it’s ready and fully charged when you need it most.

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