Apple’s newest 40-watt wall adapter introduces AVS (Adaptive Voltage Scaling), a fresh approach to fast charging that’s designed to optimize both performance and device safety. But what exactly is AVS, and how does it compare to the more familiar PPS (Programmable Power Supply) standard you’ll find on many chargers today? Let’s break it down.

What is AVS?

AVS allows the charger to adjust voltage in real time based on the connected device’s needs. Instead of stepping between preset voltage levels, AVS fine-tunes output on a continuous scale. For example, if your iPhone or iPad requires a very specific 8.6V instead of a fixed 9V, AVS can supply that exact amount. The result is greater efficiency, reduced heat, and improved battery longevity.

PPS in Comparison

PPS, part of the USB Power Delivery 3.0 standard, also supports step-based voltage adjustments—but in increments (often 20mV steps). It’s widely used in Samsung, Google, and other fast chargers, and it delivers great results. However, AVS aims to go even further by offering smoother, continuous control, which may translate to faster charging and lower stress on your battery.

Why It Matters for You

• Faster, smarter charging: AVS minimizes wasted power and maximizes efficiency.

• Cooler devices: By avoiding voltage overshoot, your phone or tablet generates less heat.

• Future-proof tech: Apple’s 40W AVS adapter positions itself as a next-gen solution, especially for iPhone, iPad, and potentially Mac accessories.

Should You Switch?

If you’re already using a PPS-enabled charger, you’re getting solid fast-charging support. But Apple’s AVS brings an extra layer of precision and efficiency, making it especially appealing for those who want to protect their battery health while getting the fastest charge possible.