It\'s not the simplest thing (but I don\'t foresee a usable DIY version), but after looking at the internal prongs, I would bet that connecting a 12v 12ah battery would be a cinch with some alligator clips. At least the opportunity is there.
Anyway, I ordered 2 12v 5ah (the standard AcuteB battery size and rating) for $15 each, a bargain.
