SimpleBGC gimbal controller as battery monitor

Hey All,
I was thinking on using the SimpleBGC voltage sensing and reports as a battery monitor (maybe secondary?) on my quad.
I found that it’s quite accurate, more than The Cube’s power brick.
It can communicate in various protocols.
I didn’t find info on adding such type of battery monitoring in ArduPilot documentation…
Anyone aware of a way to use it?

Thanks!