Voltage of 5V pin when only connected to battery

Thanks for confirming!

Is there a recommended way to power a device from battery instead of the 3V3 pin?

I can think of 2 options:

  • keep the battery connected to its pads and connect the device to BAT+. I’m not sure if this is safe when using USB to charge the battery.
  • use a separate battery charger and power both the other device and the Xiao (using the 5V pin + protection diode). This should be safe but involves additional components and “wastes” the charger in the xiao