iPhone will soon recognize poor chargers, offer more battery management options

You often don't know how fast your home power supply can charge an Apple phone. New info will soon reveal this. There's even more with the iPhone 15.

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2 min. read

In previous iOS versions, Apple has made more and more improvements to the battery management of its iPhones. For example, the so-called optimized charging has been available for some time now, in which the device can automatically determine when it should be supplied with 100% power to avoid permanent overcharging. With iOS 18, further functions are now planned that respond more closely to actual user behavior - and also reveal more information.

For the first time, the operating system, which is due to be released in the fall, will be able to tell users directly when they should use a larger charger. A "slow charger" warning is now displayed in the battery settings and battery statistics. This can be recognized by an orange charging view in the statistics of the last 24 hours, and a warning is also displayed above it.

This is useful not only for wired charging, but also if you have a wireless charger but don't know whether it supports MagSafe. Some cheaper devices are (illegally) labeled with Apple's logo, but only provide the underlying Qi standard wattage. The power supply unit can then be replaced if necessary.

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You will also soon be able to define your own charging limits with iOS 18. Instead of the usual 80 or 100 percent as before, you can now also set 85, 90 or 95 percent. So if you really need all the juice you can get, but still want to save your battery, you can set it to 95 percent instead of 100 percent. The charge limit can also be used without optimized charging, so it can be active by default if you wish.

Another new battery function only affects the iPhone 15, 15 Plus, 15 Pro and 15 Pro Max. If you have reached the end of the battery life on these devices, not only is the "Where is?" function still active (and possibly NFC functions for public transport or unlocking doors), but also the time display. Similar to the Apple Watch in low-power mode, you can continue to read the time on your iPhone until you have "real" power again.

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This article was originally published in German. It was translated with technical assistance and editorially reviewed before publication.