I’ll add a USB‑C charging circuit so your battery can be charged via USB‑C and feed your existing battery rail.
- Add a USB‑C Receptacle with sink CC configuration and an ESD/TVS Diode; define VBUS/GND.
- Add a single‑cell Li‑ion Charger IC with power‑path and charge‑status LEDs.
- Add a Battery Connector and protection if needed; tie charger BAT to Net (Argon - Li+).
- Wire required passives; update BOM/footprints; verify ERC/DRC.
Click Start to run the plan, or let me know if you want to change anything.