With the launch of iPhone 17, Apple has introduced support for AVS, a next-generation fast charging protocol under USB Power Delivery 3.2. AVS allows the charger to deliver a more precise voltage, resulting in faster, cooler, and more efficient charging. To take full advantage of this upgrade, choosing the right charger and cable is essential.
Apple’s new 40W Dynamic Power Adapter, launched alongside the iPhone 17 series, clearly specifies its adjustable voltage range and uses a dynamic output mechanism to deliver short bursts of higher power. This design aligns perfectly with the AVS (Adjustable Voltage Supply) feature introduced in USB Power Delivery. With AVS, the power source announces its adjustable voltage range, while the device can request fine-tuned voltages as needed. This allows the charger to supply power at a voltage much closer to the system’s optimal point, reducing conversion losses, lowering heat, and improving overall efficiency. In practice, this forms one of the key foundations behind Apple’s promise of a faster and more reliable wired charging experience with iPhone 17.
How to Choose the Right Charger
Check for USB PD 3.2 / AVS Support
Look for chargers that clearly state USB PD 3.2 or SPR AVS compatibility. Apple’s official 40W Dynamic Power Adapter (up to 60W maximum output) sets the benchmark, but certified third-party chargers that meet the same standard are also reliable choices.
Pick the Proper Power Rating
40W–60W chargers are the ideal range for iPhone 17.
Higher-wattage chargers (100W, 140W, etc.) are safe and will work, but the phone will only draw the power it needs.
For multi-port chargers, remember that total power is shared across all devices connected.
Mietubl 65W wall charger, supports multiple charging ports and a maximum integrated charging power of 65W
Use a Certified Cable
The cable is just as important as the adapter. Choose a USB-C to USB-C cable that is USB-IF certified. For higher currents (up to 5A), select an e-marked cable for guaranteed safety and performance.
Prioritize Safety and Reliability
Always buy from reputable brands and check for safety certifications. Certified products undergo strict quality testing to ensure stable output, thermal control, and long-term durability.
To unlock the best charging experience with iPhone 17, we recommend pairing the device with a USB PD 3.2 AVS-compatible charger (40–60W range) and a certified USB-C cable. This ensures faster charging, cooler operation, and healthier battery performance for years to come.
