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Apple iOS 18 helps you get more battery life out of your iPhone. Heres how
More data, finer settings.
I've got the iOS 18 developer beta installed on my iPhone 15 Pro Max, and could not get the message to show, no matter which charger I used, but according to MacRumors, the feature does exist. The notice is also apparently accompanied by a button which should give you more information, but currently leads to a non-existing support document. Finally, while this isn't precisely a battery-related feature, the new Dark Look in iOS lets you make everything on your display, including the icons, significantly darker, which should save some battery life(the amount might be very small, but hey, every milliwatt/hour counts).
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