I have two basic related questions about batteries on the Xenon.
I’m using this battery from Adafruit that is 3.7v. The Xenon regulates that to 3.6v if I understand correctly. Do I need to use a different voltage divider constant to get accurate results reading from the BATT pin?
What should I expect reading from the BATT pin if no battery is connected? Related to question 1 above, I’m seeing 115% voltage level with no battery, so I’d like to understand what actual values I should be expecting. Is there an official/common way to know if the device is connected to USB power, battery or both?