When Apple announced the iPhone 17, iPhone 17 Pro and iPhone Air earlier this month, it touted improved battery life across the board and «all-day» battery for the iPhone Air, which has a physically smaller battery to fit inside its thin design. Some of that is due to physically larger batteries, but a new feature called Adaptive Power in iOS 26 is also contributing. And it’s available on any iPhone capable of running Apple Intelligence. 

Currently, the iPhone uses as much power as it needs to perform its tasks. You can extend the battery life by doing a number of things, such as decreasing screen brightness and turning off the always-on display. Or, if your battery level is starting to get dire, you can activate Low Power Mode, which reduces background activity like fetching mail and downloading data in addition to those screen adjustments. Low Power Mode also kicks in automatically when the battery level reaches 20%.

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If Low Power Mode is the hammer that knocks down power consumption, Adaptive Power is the scalpel that intelligently trims energy savings here and there as needed. Based on Apple’s description that accompanies the control, the savings will be felt mostly in power-hungry situations such as recording videos, editing photos or perhaps even playing games:

«When your battery usage is higher than usual, iPhone can extend your battery life by making performance adjustments, such as lowering display brightness, allowing some activities to take longer, or turning on Low Power Mode at 20%.»

Apple says Adaptive Power takes about a week to analyze your usage behavior before it begins actively working. It works in the background without needing any management on your part. The iPhone user guide describes it as follows: «It uses on-device intelligence to predict when you’ll need extra battery power based on your recent usage patterns, then makes performance adjustments to help your battery last longer.»

Which iPhone models can use Adaptive Power?

The feature uses AI to monitor and choose when its power-saving measures should be activated, so that means only phones compatible with Apple Intelligence get the feature. These are the models that have the option:

• iPhone 17
• iPhone 17 Pro and iPhone 17 Pro Max
• iPhone Air
• iPhone 16 and iPhone 16 Plus
• iPhone 16 Pro and iPhone 16 Pro Max
• iPhone 16e
• iPhone 15 Pro and iPhone 15 Pro Max

Although some iPad and Mac models support Apple Intelligence, the feature is only available on iPhones.

How to turn Adaptive Power on

On the iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max and iPhone Air, Adaptive Power is on by default. For other models, you must opt in to use it. In iOS 26, you’ll find the Adaptive Power toggle in Settings > Battery > Power Mode. If you want to be alerted when the feature is active, turn on the Adaptive Power Notifications option.

Adaptive Power sounds like an outgrowth of Gaming Mode, introduced in iOS 18, which routes all available processing and graphics power to the frontmost app and pauses other processes in order to deliver the best experience possible — at the notable expense of battery life.

What does this mean for your charging habits?

Although we all want as much battery life as possible all the time, judging by the description, it sounds as if Adaptive Power’s optimizations will not always be active, even if you leave the feature on. «When your battery usage is higher than usual» could include a limited number of situations. Still, considering that according to a CNET survey, 61% of people upgrade their phones because of battery life, a feature such as Adaptive Power could extend the longevity of their phones just by updating to iOS 26.

I also wonder whether slightly adjusting display brightness could be disruptive, but in my experience so far, it hasn’t been noticeable. Because the feature also selectively de-prioritizes processing tasks, the outward effects will likely be minimal.

Read more: Adaptive Power in iOS 26 Could Save the iPhone 17 Air From This Major Pitfall

We’ll get a better idea about how well Adaptive Power works as more people adopt iOS 26 and start buying new iPhone models. Also, remember that shortly after installing a major software update, it’s common to experience worse battery life as the system optimizes data in the background; Apple went so far as to remind customers that it’s a temporary side effect.