iPhone Charging Speeds Comparison

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Quick Answer: Apple publishes adapter requirements, not a maximum wired device draw. The iPhone 18 Pro, 18 Pro Max, and Duo use a 60W-or-higher adapter for Apple's up-to-50%-in-around-15-minutes claim, plus 25W MagSafe. iPhone 17 Pro models use a 40W-or-higher adapter for a 50%-in-20-minutes claim. MagSafe and Qi limits below are the published wireless maxima.

How iPhone charging changed from Lightning to USB-C, and how MagSafe limits differ by model.

Adapter requirements and MagSafe limits by model

Apple fast-charge adapter requirements and MagSafe limits by iPhone model
iPhone ModelPortApple fast-charge adapter requirementMagSafe Speed
iPhone 17eUSB-C (USB 2, up to 480Mb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 18 ProUSB-C (USB 3, up to 10Gb/s)60W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone 18 Pro MaxUSB-C (USB 3, up to 10Gb/s)60W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone DuoUSB-C (USB 3, up to 10Gb/s)60W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone 16eUSB-C (USB 2, up to 480Mb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not publishedNo
iPhone 17USB-C (USB 2, up to 480Mb/s)40W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone 17 ProUSB-C (USB 3, up to 10Gb/s)40W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone 17 Pro MaxUSB-C (USB 3, up to 10Gb/s)40W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone AirUSB-C (USB 2, up to 480Mb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published20W
iPhone 16USB-C (USB 2, up to 480Mb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone 16 PlusUSB-C (USB 2, up to 480Mb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone 16 ProUSB-C (USB 3, up to 10Gb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone 16 Pro MaxUSB-C (USB 3, up to 10Gb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published25W
iPhone 15USB-C (USB 2, up to 480Mb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 15 PlusUSB-C (USB 2, up to 480Mb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 15 ProUSB-C (USB 3, up to 10Gb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 15 Pro MaxUSB-C (USB 3, up to 10Gb/s)20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 14Lightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 14 PlusLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 14 ProLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 14 Pro MaxLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone SE (3rd generation)Lightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not publishedNo
iPhone 13Lightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 13 miniLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published12W
iPhone 13 ProLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 13 Pro MaxLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 12Lightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 12 miniLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published12W
iPhone 12 ProLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone 12 Pro MaxLightning20W-or-higher adapter for Apple's fast-charge claim; maximum device draw not published15W
iPhone SE (2nd generation)Lightning18W-or-higher adapter for Apple's fast-charge claim; maximum device draw not publishedNo
iPhone 11Lightning18W-or-higher adapter for Apple's fast-charge claim; maximum device draw not publishedNo
iPhone 11 ProLightning18W-or-higher adapter for Apple's fast-charge claim; maximum device draw not publishedNo
iPhone 11 Pro MaxLightning18W-or-higher adapter for Apple's fast-charge claim; maximum device draw not publishedNo
iPhone XRLightning18W-or-higher adapter for Apple's fast-charge claim; maximum device draw not publishedNo
iPhone XLightning18W-or-higher adapter for Apple's fast-charge claim; maximum device draw not publishedNo
iPhone SE (1st generation)LightningNot publishedNo

* iPhone 12 mini and 13 mini are limited to 12W MagSafe charging.

What USB-C changed

Starting with the iPhone 15 series, Apple transitioned to USB-C. Adapter requirements still vary by model: current 18 Pro models list a 60W-or-higher adapter for Apple's fast-charge timing claim, while the iPhone 16 lineup lists a 20W-or-higher adapter. That wattage is adapter capability, not a published maximum device draw.

MagSafe Improvements

MagSafe started at 15W with the iPhone 12. With the iPhone 16, Apple introduced a MagSafe charger rated at 25W wireless charging, a published wireless maximum rather than a substitute for Apple's wired adapter-requirement language.

Frequently Asked Questions

Do I need a high-wattage adapter for Apple's fast-charge claim?

Apple's published language is an adapter requirement, not a maximum device draw. For current 18 Pro models that is a 60W-or-higher adapter for the up-to-50%-in-around-15-minutes claim; iPhone 17 Pro models list a 40W-or-higher adapter for 50% in 20 minutes. Use a USB-C cable that supports the adapter's rating. MagSafe and Qi maxima are listed separately in the table above.

Is fast charging bad for battery health?

Fast charging generates more heat, which can degrade batteries over time. However, iPhones have smart power management to throttle speeds when the battery gets warm or reaches 80% charge to protect longevity.

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