Introduction Apple’s iPhone 17 series, launched in 2025, officially supports the variable voltage charging mode based on the new USB-PD 3.2 specification, namely USB PD 3.2 SPR AVS, and has released an official40W dynamic power adapter (up to 60W), to achieve the official claim of “approximately 20 minutes to charge to 50%” fast charging experience. … Read more
Introduction On September 10, 2025, Apple held its 2025 Fall New Product Launch event, unveiling the iPhone 17 series along with a series of major new products. At the same time, Apple launched a 40W dynamic power adapter on its official website, which supports fast charging and is fully compatible. Its peak power can reach … Read more
Introduction Recently, I discovered a project on GitHub that is an open-source embedded hardware and software project — a fast charging solution for lithium batteries based on STM32G0, powered by a Type C interface charger, implemented with STM32G0, supporting charging for 1s – 4s lithium battery packs, and also supporting 2s-4s balance charging functionality. At … Read more
Introduction Recently, I discovered an open-source project for both embedded software and hardware on GitHub —Fast Charging Solution for Lithium Batteries Based on STM32G0, powered by a Type C charger, designed using STM32G0, it supports charging 1s – 4s lithium battery packs and includes a 2s-4s balancing charging feature. Currently, this project has been mass-produced … Read more