It's like Apple finally listened to what a majority of phone owners have been asking for: longer battery life. The iPhone 17 Pro Max delivers "the best battery life of any phone that CNET has ever tested" according to Managing Editor Patrick Holland in his review , but it's not just due to a physically larger power unit. A new feature in iOS 26 called Adaptive Power contributes to extended battery life in the latest iPhone 17 and iPhone Air models, as well as several earlier Apple iPhones .
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 activat