MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Sure you can!
As explained here:https://learn.adafruit.com/adafruit-feather-huzzah-esp8266/power-management
you can power the board using a 4.2/3.7V battery or a USB cable for smartphones.
If you have already connected the battery and you connect also the USB plug the board will work well anyway and the battery will be recharged