A significant leap in charging technology
Apple’s 40W Dynamic Power Adapter, released alongside the iPhone 17 series in Fall 2025, is a game-changer for fast charging. This compact powerhouse delivers up to 40W wired charging for the iPhone 17, 17 Pro, and 17 Pro Max, capable of reaching 50% battery in just about 20 minutes, drastically cutting down waiting time.
40W Dynamic Power Adapter: Compact Design, Robust Power
With the model number A3365, this charger is remarkably compact, similar in size to Apple’s prior 20W charger and weighs only about 80 grams, making it highly portable.
It features a foldable plug design, ideal for travel.
Dynamic power output is the core highlight: it provides a stable 40W output, while the peak power can reach up to 60W. This makes it not only perfect for fast charging the iPhone 17 series but also suitable for powering devices like the MacBook Air.
Requirements for Optimal Fast Charging
To experience the 40W fast charging on the iPhone 17 series, you will need:
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A 40W or higher USB-C PD charger (like Apple’s new 40W Dynamic Power Adapter).
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A high-quality USB-C to USB-C cable (rated for at least 3A/60W).
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For the fastest speeds, start charging when the battery level is between 1% and 50%, the interval where charging is most efficient.
A Noticeable Upgrade from Previous Generation
Compared to the iPhone 16 series, which required 30-35 minutes to reach 50% charge, the iPhone 17 series paired with the 40W charger achieves this in just about 20 minutes, marking a substantial improvement in efficiency.
It is worth noting that this charger utilizes the latest PD3.2 AVS protocol, which works in concert with the built-in charge pump in the iPhone 17 series to enhance charging efficiency and effectively reduce heat.
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