Technical details
Description, documents, and source code.
USB-C PD/QC Fast Charge Adapter Board
A compact open-source USB-C fast charge adapter board designed for single-cell battery powered projects.
Battery Notice
Battery is not included
Please purchase …
USB-C PD/QC Fast Charge Adapter Board
A compact open-source USB-C fast charge adapter board designed for single-cell battery powered projects.
Battery Notice
Battery is not included
Please purchase the battery separately
Recommended search keyword: Vacuum Battery Replacement
Please match the connector type and number of battery cells to the reference image before purchasing
Make sure the battery pack is compatible with the board and wired correctly before use
This board integrates USB-C charging, battery management, load power switching, and USB-C PD fast-charge output into one small module, making it a practical power solution for DIY electronics, portable devices, embedded systems, and custom handheld projects.
It is ideal for makers who want to build battery-powered devices with modern USB-C charging and regulated high-power USB-C output.
What does it do?
This module is designed around a simple and practical power path:
USB-C input for charging
PD/QC/AFC protocol handling
Single-cell lithium battery charging
Battery-powered system switching
USB-C PD output for external devices or downstream systems
From the system diagram, the board functions as an integrated charge + battery + boost/output solution for portable electronics.
Great For
DIY portable electronics
Battery-powered embedded systems
ESP32 / STM32 / Raspberry Pi based handheld projects
Small field tools and utility devices
USB-C powered custom products
Open-source hardware experiments and derivative designs
Why this board is useful
Instead of combining separate charging boards, boost converters, trigger boards, and protection modules, this design brings the essential power functions together into one board.
That means:
cleaner wiring
simpler integration
more compact builds
easier productization for custom devices
Original product page: https://www.tindie.com/products/johnson/usb-c-pdqc-fast-charge-adapter/