I don't know anyone who's satisfied with their phone's battery life. We always want more power so we don't wind up with a tapped-out phone at the end of the day or the need to carry a portable charger everywhere. So I'm very curious to see how Adaptive Power affects iPhone battery life when iOS 26 is released, likely soon after the iPhone 17 is announced at Apple's Sept. 9 fall event.
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 make small performance adjustments to extend your battery life, including slightly lowering the display brightness or allowing some activities to take a little longer. Low Power Mode may turn on at 20%."
Watch this: I'm Impressed With iOS 26. Apple Just Made iPhones Better 05:40
How to turn adaptive power on
Adaptive Power is not on by default, and you must opt in to use it. In iOS 26, you'll find the Adaptive Power toggle in Settings > Battery > Power Mode.
In iOS 26, turn on the Adaptive Power option to help extend battery life. (IOS 26 developer build shown here.) Screenshot by Patrick Holland/CNET
Since Adaptive Power appears to use AI to decide which settings and processes to adjust, the feature appears to be available only on iPhone models that support Apple Intelligence, which include the iPhone 15 Pro and later. A Reddit thread about Adaptive Power suggests this is the case, with commenters noting it doesn't show up in iPhone 13 Pro or iPhone 14 Pro models with the beta installed.
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