At the introduction of the iPhone 17 series, Apple indicated that the devices can be charged to 50% in 20 minutes. Yet there is another disappointment, which is more common at Apple. For the 50% fast charging in 20 minutes, a special power adapter of 40 W with a peak power of 60W is. However, this is not yet available in the Netherlands and Belgium.
Fast charging according to the iPhone 17 Pro specifications
On the Apple website you will find the following information under the heading “Food and Battery” for the specifications of the iPhone 17 Pro:
Suitable for fast loading: Within 20 minutes to 50% charged with an adapter of 40 W or more (available separately) in combination with a USB-C charging cable. Within 30 minutes to 50% charged with an adapter of 30 W or more in combination with a Magsafe charger (both available separately).
When reading this you could assume that you can charge an iPhone 17 Pro with a 40 W adapter in 20 minutes to 50%. But this is not true. The following is stated at the bottom of the page in the footnotes:
Tests performed by Apple in July 2025 with prototypes of iPhone 17 Pro and iPhone 17 Pro Max and the software, a USB-C charging cable with Apple Dynamic Peak of 60 W (Model A3351), and Apple Magsafe-Bopperers (Model A3503 of-light) with-light) (model A2164) or Apple dynamic mains adapter of 40 W with a peak of 60 W (model A3351).
In summary, to be able to use fast loading you need a charger that is equipped with USB Power Delivery 3.2 with Adjustable Voltage Source.
Apple is currently the only manufacturer that offers such a charger, albeit in a limited number of countries. This charger is only available in Canada, China, the Philippines, Japan, Mexico, Taiwan and the US.
A specific charger is therefore required for fast loading, which is also not available to us in Europe. Chargers from other brands with at least 40 W can charge quickly, but are limited to 50% in 30 minutes instead of 20 minutes.
Power Delivery PD 3.2 AVS Standard
The Power Delivery (PD) 3.2 AVS standard is a recent addition to the USB Power Delivery specification, officially released in October 2023. AVS, which stands for Adjustable Voltage Supply. This is a technology that makes it possible for a power source to adjust the output voltage dynamically and precisely within a certain voltage range, for example between 9V and 20V, with 100 mv steps. This contributes to a more efficient and safer power supply that is better tailored to the optimum voltage requirements of the connected device, which leads to faster and more stable charging performance.
Important in PD 3.2 With AVS is that devices that supply more than 27 Watt power are obliged to support this mode. AVS helps to make the power supply more flexible, especially for devices such as laptops and smartphones that benefit from more precise voltage scheme than with previous fixed voltage levels.
Apple’s new 40W ‘Dynamic Power Adapter’ is one of the first power adapters to support USB PD 3.2 with AVS. This adapter can temporarily supply high power that looks like a 60W charger, but in a compact 40W version, thanks to the scalable and adjustable voltage facility via AVS. This leads to faster charging times and a more efficient use of energy.
Availability Apple Dynamic Power Adapter
The special 40W adapter with a peak power of 60W (Model A3351) This cannot (yet) be ordered at Apple in the Netherlands and Belgium. There may still be an approval process or something like that.
More clarity from Apple
Because Apple would currently be the only manufacturer that offers a charger that supports PD 3.2 with AVS, it seems that the super needle loading function is only for Apple’s special 40W adapter. Fast chargers from other manufacturers that are above this lower limit, according to 9to5mac Being able to charge quickly, but they do not reach the top speed that Apple promises.
It is waiting for Apple to give more clarity about this fast -charging function. For the time being it seems that chargers from other brands with at least 40 W can charge quickly, but are limited to 50% in 30 minutes instead of 20 minutes. The same results as the previous generation iPhone.