So I tried to make a cheaper version of it. Let’s say around 110.-. I took a Sonos Ikea Symfonisk, some already available Sonos hacks, a step-up booster and tools and stuff laying around at home.
I don’t have the skills to do things like that. But I’m not afraid of trying things…
Right now I am having problems with auto power off of newer powerbanks. While booting the speaker needs to less power so they turn off. I have solved it by using older "stupid" powerbanks or by leaving the power cable in the speaker until I have started music - then I can pull the cord.
Update<:/strong> I know have now ordered the Mi Power Bank 2S (Amazon affiliate link) it has a low power mode to charge small gadgets - it perfectly works now.
If you would like to share your experience or you've got questions: write me on twitter @_emanuel.
DISCLAIMER: everything you do, you do on your own risk. You might lose your warranty. You might hurt yourself.