In the early hours of September 10, 2025, Apple held its 2025 Fall New Product Launch Event, unveiling a series of heavyweight new products including the iPhone 17 lineup. Meanwhile, Apple's official website launched a 40W Apple charger featuring fast charging and full compatibility. This charger has a peak power of up to 60W and can dynamically adjust the output power to accelerate charging speed. According to data disclosed online, the charger can achieve 40W fast charging through AVS technology. The parameters of this charger are as follows:
Model: A3365
Input: 100-240V~, 50-60Hz, 1.5A (USB PD)
Output:(AVS) 15.0-20.0Vdc, 2.0A [3.0A DPS]
or (AVS) 9.0-15.0Vdc, 2.67A [3.0A DPS]
or 9.0Vdc, 3.0A
or 5.0Vdc, 3.0A
Maximum Total Output Power: 60W
According to information provided by Apple, the iPhone 17 series, when paired with this charger, can reach 50% battery capacity in 20 minutes. The new iPhone models support the fixed voltage of USB-PD and additionally feature the AVS function.
AVS (Adjustable Voltage Supply) is a voltage-adjustable function newly added to the USB-PD standard since PD3.1. Previously, it was mainly used in high-voltage/high-power scenarios (PD EPR), i.e., the power segment of 140W and above. However, since the update of the PD3.2 standard in October 2024, the AVS mechanism has also been extended to the SPR (Standard Power Range) (27W–100W). It allows devices to accurately match the charging needs of various terminals with a minimum step of 100mV within the range of 9V–20V, thereby effectively improving energy conversion efficiency and reducing device heat loss.
Apple's current power upgrade can significantly shorten the charging time of iPhones and enhance user experience. The updated protocol means we need new technical standards to design and produce chargers with excellent compatibility and high efficiency. Meanwhile, the improved performance and added functions will inevitably push up manufacturers' costs. The complete PD protocol and AC-DC solutions launched by Huayuan Zhixin not only meet the new market demands in terms of technology and performance, but also feature highly competitive product costs, achieving a perfect balance in dimensions such as function, performance and cost.