I've noticed that USB-A to USB-C chargers were replaced surprisingly quickly by USB-C to USB-C chargers. When did USB-C to USB-C become the usual standard for phone charging? I was guessing sometime between 2022 and 2024, but someone told me the shift happened around 2020. I'm mainly looking for a timeline that separates when the technology was introduced from when manufacturers widely adopted it.
3 Answers
There isn’t one exact date. USB Type-C was finalized in 2014, and USB Power Delivery 2.0 was introduced around the same time. USB-PD made higher-power charging much more practical, but it requires the USB-C connector’s configuration pins, so USB-C on both ends became the natural setup for modern fast chargers. Widespread adoption happened gradually through the late 2010s and early 2020s.
Apple’s switch made the transition much more visible. iPhones used Lightning until the iPhone 15, released in September 2023, while many Android phones and other devices had already used USB-C for years. The European Union adopted common-charger legislation in 2022, with the requirements applying to many portable devices sold there from December 2024. That legislation helped push USB-C adoption, but it wasn’t the original introduction of USB-C-to-USB-C charging.
The change was driven more by fast charging than by a single rule. As phones and laptops increasingly supported USB Power Delivery, manufacturers began selling USB-C-to-USB-C chargers because USB-A could not provide the same functionality as cleanly. By roughly 2020–2022, many new chargers and premium phones had moved in that direction, although USB-A chargers remained common for years.
So 2020 is a reasonable estimate for when the change became noticeable, but not the date when it technically became a standard. USB-C and USB Power Delivery had already existed for several years by then.