One of my HR92s has started showing a battery low warning screen. When I check the faults page, there is often one battery warning approximately every hour (a minute or so different each time) yet the HR92 battery shows either 2 bars or 1 bar and the display is ok.

Could the warning be caused by failing battery contacts.?

The fact that the warnings seem to repeat virtually on the hour implies the HR92 is only failing presumably when the controller initiates an update to the controller and not when the HR92 checks in to the controller.

Are my assumptions above correct or is there some other cause for this. I have been seeing this warning for over two weeks and the battery stills seems good.

Thanks for any ideas.