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%.
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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.
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Thanks for any advice - would be great to know if there is anything "official" on this from Sonos.Â
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![](https://uploads-eu-west-1.insided.com/sonos-en/attachment/362fc7b8-a75a-4284-aa3b-9bdc7ed65ce2.jpg)
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