I have left my Roam constantly plugged in using the original adapter from Sonos and the cable that was supplied with the speaker. What I find odd is that the battery level fluctuates from 97% to 100% even though I have never unplugged it. This never happens with my 18 month old Move - once sat on the dock and fully charged, it always stays at 100%.
Is this expected behaviour or could it be a fault? I am concerned as I don't want to unnecessarily degrade the Roam battery over time.
Thanks for any advice - would be great to know if there is anything "official" on this from Sonos.