I picked up a used bike and it came with a dynamo hub and didn't think anything of it, but after googling it turns out its a really high end Schmit Son 28 dynamo hub and came with a SuperNova headlight.

I was planning on parting the bike out, but am now thinking of just re-building a new wheel out of the hub as it could be useful to have on my commuter.

I know they make devices you can wire up to charge your phone or other usb devices, but was wondering if there is any other cool stuff I could do with the hub or if its worth keeping and putting money into getting a new wheelset built up around it. How effective would it be vs just carrying around a battery bank on long trips and stuff?