Electron - How to tell if a battery is connected

[rvnash]

Is there a way, using perhaps FuelGuage or PMIC, to tell in code if a battery is connected or not?

Unfortunately the online docs for these two Firmware libraries are lacking details. I’ve played around a little and discovered that getSoC and getVCell return “reasonable” values even when no battery is connected.

[rickkas7]

This is actually difficult to detect. The code sample in the last comment to this post works, however.

When is Electron Powered By Battery

This version is much better. It uses the BAT_INT_PC13 interrupt to detect the rapid switching between fast charge and charge done when there is no battery. It’s much more efficient and doesn’t require being called from loop. You just initialize it once and use the getHasBattery() method to find out if there is one. #include "Particle.h" /** * Simple class to monitor for has power (USB or VIN), has a battery, and is charging * * Just instantiate one of these as a global variable and call se…