/lir2450-charger

A tiny USB C charger for LIR2450 coin cell batteries

Creative Commons Attribution Share Alike 4.0 InternationalCC-BY-SA-4.0

LIR2450 Charger

Front Back An open source USB C battery charger for LIR2450 Li-Ion coin cells.

This repo hosts the KiCad project for the charger, which contains the schematic and printed circuit board layout so you can make your own.

Tech Specs

  • It uses Microchip's MCP73831 as the charge management controller
  • 45mA charge current

Bill of Materials (BOM)

The KiCad exported BOM is here.

3D Render

3D Render

License

The hardware and associated design files are released under the Creative Commons CC BY-SA 4.0 license.