Batteries Not Included

New Scientist Breaking News &045; Pee-powered battery smaller than a credit

Somewhere in Singapore not so long ago there was actually a day when someone went to work in a lab and put these words together in a sentence, "I think we should study urine to see if it can power a battery." Furthermore, there were others in that lab who said, "Yes, studying urine to see if it can power a battery is a good idea. Let's do it." I have one question and one comment for these people:

1.) Are the batteries rechargable?

and

2.) Please, for the love of God, don't you EVER try to figure out an alternate source to power the big, weird batteries that go in those industrial size camping flashlights!