Good day guys,
Rechargeable 3.6V CR123 are as per Internet litterature not reliable as some of them provide 4.2V, other are 3.7V…
So I should connect it to the 5V pin not to fry the Xiao ( the one on the top side next to the ground and 3.3V, not the VIN one)
My issue : what is the minimum voltage in this 5V pin supposed to work at ?
Like if I put a 3.7v battery, it may go down quickly to 3.6V then to 3.5V.
If the 5v pin stops working at 3.6V then I am done