Just bought a lithium powered Ryobi Expand-It weed whacker that comes with several add on attachments for leaf blowing, tilling, trimming, etc. I'm never going back to gas power. This thing kicks ass!
Anyway, I am aware of 2 products on the market for powering effects pedals via lithium battery power, The Big Joe Power Box and the Sanyo Pedal Juice. Has anyone tried either? My setup's getting a bit involved now with spaghetti wiring, multiple basses, etc. and I'm trying to clean things up on the floor.
Here's a demo of the Big Joe:
https://www.youtube.com/watch?v=G4Lmi_J8Hx8