LIR2450 Charger

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

License

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