I understand from the documentation that if I power a Bela Mini with a 3.7v LiPo battery the analog inputs will not work (https://learn.bela.io/using-bela/bela-techniques/powering-bela/). I'm trying to do that now, using a fully charged 3.7v 2500mah battery. It seems like the Bela is starting up, but the Teensy that I have connected to the USB port is not turning on. Does that port also not work if the Bela is receiving less than 5v (or maybe 4.5v)?
I can probably dig out a boost converter but it would be great to know if I'm troubleshooting correctly.