Hello, on the Photon documentation it states “When the Photon is powered via the USB port, VIN will output a voltage of approximately 4.8VDC”. I was wondering what the VIN voltage would be if the Photon was running off just battery? Would VIN change depending on the battery voltage? I plan to have the SparkFun Battery Shield installed.
Some background: Right now I am using USB to power the Photon and a sensor requiring 5V is connected to VIN. It works fine now, but I would like to add the battery for more portability, hence the question.