How to save batteries on Flic2

[info 6]

I think that when on mobile an App (with the Flic library) goes to background, while background clicks are not enabled, there should be a way to disconnect buttons or close the library after a while, so that they save batteries level.
The typical user behaviour, once done, is to go to another App or close the cover of a tablet and forget about it. Rarely they quit an App.

That said, while i think there is a time-out on Android, I am not sure how to manage this on iOS.
Can someone please explain?
Thanks