When is Electron Powered By Battery

[RWB]

This maybe what your looking for, not sure:

How to detect Electron goes from microUSB power to battery?

I just took a look at the functions in the link you provided and there is tons advanced functionality in the Texas Instruments PMIC module. That’s really nice to see. It looks like I can even customize the battery charging chips charging voltage and have it work with a different battery chemistry possibly. So it sounds like you just want to know when the Input power source that feeds the regulator that feeds the processor and uBlox module switches from running on USB Input over to Battery Power…