"For reasons of safety, efficiency, and longevity, the batteries in our phones and laptops do not charge at their maximum possible input for the entirety of the charging cycle. Instead it's regulated at predefined voltages to slow down charging as the battery fills. With AVS, the power source can provide a very specific voltage that is closer to the ideal needed for the device being charged, speeding up charging in the process."
"However, unlike a true 60W charger, Apple's little 40W GaN charger can not maintain that peak 60W rate forever - only 18 minutes as demonstrated by Privaterbok over at the r/UsbCHardware subreddit. That makes it suitable for fast charging a new iPhone 17 but not a MacBook Pro, which is why Apple sells it as a 40W charger "with 60W Max" and not a 60W charger."
Apple released a 40W Dynamic Power Adapter that supports USB PD 3.2 AVS (Adjustable Voltage Supply), enabling more precise voltage output for efficient charging. AVS offers granular voltage options so the power source can match a device's ideal charging voltage, improving charge speed and efficiency. Batteries are normally charged at regulated voltages for safety and longevity, and AVS narrows the gap between source and device needs. The adapter can hit a 60W-equivalent peak but only for about 18 minutes, making it effective for fast iPhone 17 charging but unsuitable for sustained laptop charging. The adapter is priced at $39, and compatible third-party AVS chargers are expected from other manufacturers.
Read at The Verge
Unable to calculate read time
Collection
[
|
...
]