Play 1 Battery Pack

like this !
http://v2.twice.com/news/speakers/denon-expands-heos-wireless-multiroom-lineup/57080

http://www.superfi.co.uk/p-16832-denon-heos-1-wireless-speaker-denon-heos-gopack-offer-pre-order-for...

Really. The Sonos Play 1 doesn't need 120v. It uses 120v AC and steps it down with a transformer to 24 volts DC. All you need to do is cut that out of the loop entirely and apply 24v. This video uses a cell phone backup battery outputting 5v to a step-up transformer which is going to limit the amperage so it won't be quite as loud. But a Black and Decker 24 volt drill battery might be perfect. I think I'll give it a try.
So does that also apply to a UK 240 volt Play 1?

Really. The Sonos Play 1 doesn't need 120v. It uses 120v AC and steps it down with a transformer to 24 volts DC. All you need to do is cut that out of the loop entirely and apply 24v. This video uses a cell phone backup battery outputting 5v to a step-up transformer which is going to limit the amperage so it won't be quite as loud. But a Black and Decker 24 volt drill battery might be perfect. I think I'll give it a try.
Hey @NickA I'm no sparky so wouldn't know that, however I'm also not going to butcher any on my Play 1's

Really. The Sonos Play 1 doesn't need 120v. It uses 120v AC and steps it down with a transformer to 24 volts DC. All you need to do is cut that out of the loop entirely and apply 24v. This video uses a cell phone backup battery outputting 5v to a step-up transformer which is going to limit the amperage so it won't be quite as loud. But a Black and Decker 24 volt drill battery might be perfect. I think I'll give it a try.
"Butcher" is probably a strong word. Other than taking the screws out and soldering a couple wires to the back of the board, the only other butchering is the drilling of a small hole to let the wires pass through. It still works with the regular power cord as well as long as you don't have both connected at the same time. But putting some more thought into this, I think I'm going to buy this battery: http://www.amazon.com/Toro-88506-24-volt-Battery-Trimmers/dp/B00CUB37I4/ref=sr_1_16?ie=UTF8&qid=1431026576&sr=8-16&keywords=24v+battery+pack And then see if I can use it without the step up transformer and without the reduced amperage. To take it a step further then, I could buy a second charger for it and disassemble it and mount the top half to the Sonos on the back of the speaker. Then when I want battery power I could simply slide the battery into the mount.

See. That's not so hard now, is it? Come on, Sonos. Don't make me switch systems.

Really. The Sonos Play 1 doesn't need 120v. It uses 120v AC and steps it down with a transformer to 24 volts DC. All you need to do is cut that out of the loop entirely and apply 24v. This video uses a cell phone backup battery outputting 5v to a step-up transformer which is going to limit the amperage so it won't be quite as loud. But a Black and Decker 24 volt drill battery might be perfect. I think I'll give it a try.
@Kevin Freels, I'm not about to pull open my Play 1's and wouldn't advice others to do it either. We would like to see an official solution not a DIY work-around. Remember this will invalidate your warranty.

Really. The Sonos Play 1 doesn't need 120v. It uses 120v AC and steps it down with a transformer to 24 volts DC. All you need to do is cut that out of the loop entirely and apply 24v. This video uses a cell phone backup battery outputting 5v to a step-up transformer which is going to limit the amperage so it won't be quite as loud. But a Black and Decker 24 volt drill battery might be perfect. I think I'll give it a try.
lol. Yeah. It does indeed invalidate the warranty. I would assume that anyone taking this on would know that. In my case, the warranty is already expired so it doesn't matter. And no. It's not ideal. I would MUCH prefer a real solution. I'm simply talking about the best way to manage a workaround that seems necessary because Sonos seems unwilling to capitulate to several years of owner requests while every other company is providing such devices. I especially like this article titled "LG Flow Punches Sonos right in its Portable Battery Speaker Hole." http://www.theregister.co.uk/2014/12/26/lg_hits_sonos_right_in_its_portable_speaker_hole/ The second point behind my post, aside from helping people who want to do such a thing (not trying to convince anyone to do it though) is to point out how simple it really is and hopefully get more people to put more pressure on Sonos to roll out such a product. They did do a $130 million equity sell-off in December so they have the cash......

Really. The Sonos Play 1 doesn't need 120v. It uses 120v AC and steps it down with a transformer to 24 volts DC. All you need to do is cut that out of the loop entirely and apply 24v. This video uses a cell phone backup battery outputting 5v to a step-up transformer which is going to limit the amperage so it won't be quite as loud. But a Black and Decker 24 volt drill battery might be perfect. I think I'll give it a try.
I'm with you, don't forget I started this thread.

I would suspect that the likes of LG and Denon visit this forum to see that this type of speaker is highly requested.

"Aiming to compete more strongly with Sonos, LG Electronics is updating its streaming Wi-Fi loudspeaker/music-player product line with something that Sonos users have (so far fruitlessly) requested; a portable, battery-powered job"

That's a great idea. Makes a change from the usual complaints about the lack of features (like an outdoor speaker) that Sonos haven't yet replied directly to. Pro-active idea sharing welcome here, thanks Dave!
Patiently hoping they will come up with something

Spend two seconds clicking a "like" on this thread that Sonos actually has put a "under consideration" label on. https://ask.sonos.com/sonos/topics/truly_wireless . Yes I know the thread heading refers to Play:3 and Play:5, but just scroll down in that thread and see that Play:1 is mentioned several times. 

I know that Sonos isn't best friends with Denon at the moment, but the Denon HEOS1-battery is just what many of us has been asking for several years. http://www.bigpicturebigsound.com/Denon-HEOS-1-takes-it-outside.shtml Since I have my house covered with Sonos, please let me have a "Play:1-to go". A base charger, and a mini-jack line-in (for occasional use out of wifi-range) Perhaps a headphone line-out as well?