Sonos Roam - Battery drain

I know you like your Roam Ken and certainly get more life out of it than most/any but 1-2% drain per day on a powered off li-ion device is way higher than normal (and most seem to get more drain than that).

If I fully power off my tablet it will be on 99 or 100% a week later. Always.

Funnily enough I just bought a battery ‘boost' thing for the car as it struggled to start sometimes through lack of use.  They claim it should be on 70% after 12 months.

Unfortunately I’m away from Home for a family Birthday party tomorrow night and my Roam is not fully charged at the moment, but what I will do next week, when I get chance @sjw is I will charge my Roam to 100% take a screen-grab showing the time/date and power it off and will switch it back-on 24 hours later and take another screen-grab showing its battery loss - you’ll just have to take my word that I haven’t charged it in-between. My experience when I first had the Roam and did that test was I was losing on average 2% per day  …and I have no reason to lie about the battery-loss I saw in those tests.

The self discharge rates are mentioned in this Wikipedia article and this of course is dependent on environment temperature…

https://en.wikipedia.org/wiki/Lithium-ion_battery

i will just leave my powered off Roam on a table in the Dining Room, but you’ll just have to wait till I get a chance to be at home to do this.

@Ken_Griffiths isn’t the only one. I also get 1%-2% battery drain per day when the Roam is completely shut off.

Hi Ken, I honestly believe you, really no need to do any of that.  My point really is that I think Sonos does ‘other things’ even when supposedly ‘off’ as even 1-2% is way above what I would expect from a Li-Ion battery.

The article you linked to suggests an expected discharge rate of .35%- 2.5% per MONTH - whereas you appear to get approx half that per DAY.  Approx 20 times worse than the upper expected rate.

Ah I see, I thought you were suggesting the battery discharge was more than 1-2% when the Roam was powered off - my mistake @sjw (sorry) 🙏.

I have seen somewhere online that the Roam should remain charged for 70 days when powered off - as usual I can’t find where I saw that, but that is around the level of the battery discharge-rate I’m seeing, admittedly though, I haven’t tried the full 70 days to see if that is the case. If it lasts two months when powered off, then I’m happy with that to be truthful.

Some users though seem to say they get just days of battery, even when the device is ‘off’ and all I try to highlight is the differences between ‘standby mode’ and the ‘powered off’ states.
 

HI there. You will find that when you switch your sonos off,  you have to hold the button for at least 10sec for it to turn off completely.  When you just hold for 2 or so seconds it switches off but on standby mode

Hold button for 10 seconds. You will hear a different tone. Then it's switched off correctly. 

I am having the same issue.  I hold the power button and make sure its off and its still drains.  Ive owned it about 5 months and im disappointed on the battery drain.  

Holding the power button until you hear what? - You should hold it until you hear the 4 ‘descending’ tones - I suspect that’s ‘perhaps’ where your issue may lie.

I respectfully disagree.  I know how to hold the button till I hear the sound that its completely off. I even check the app to make sure the speaker is not showing on the available speakers...and the battery still drains.  Love the sound but someone overlooked the battery drain. 

SV