I got 2 Ripcord cables 12VDC to power my Digitakt and Digitone and these work like a charm!
I love that with ripcord I can also power my devices by using a normal usb charger plug (which makes travelling easier).
I have a valve pedal that runs on 12VDC, but the ripcord doesn’t have enough power to power it. I think the limit is that Ripcord can provide 12Vdc at max 1A.

I also got this powerbank: