XIAO ESp32c3 Supply Voltage (max and Min)

[msfujino]

Hi DiawlBach,
The input voltage on the 5V pin is max 6V, limited by regulator XC6210.
Post #2 below may be helpful.

Charging characteristics of XIAO_nRF52840 and XIAO_ESP32C3

I have extracted the power and charging circuit parts from the published schematic. I hope this will be helpful when troubleshooting. [XIAO_nRF52840_PwrSch] [XIAO_ESP32C3_PwrSch]