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](https://www.flux.ai/search?type=components&q=USB-C%20Receptacle) with sink CC configuration and an [ESD/TVS Diode](https://www.flux.ai/search?type=components&q=ESD%20TVS%20Diode); define VBUS/GND. - Add a single‑cell [Li‑ion Charger IC](https://www.flux.ai/search?type=components&q=Li-ion%20Charger%20IC) with power‑path and charge‑status LEDs. - Add a [Battery Connector](https://www.flux.ai/search?type=components&q=Battery%20Connector) 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.