We do know that the NoPoPo battery can run on other liquids apart from water, where among them include urine, Coke, and even saliva (!). It is not only rechargeable but recyclable as well, and can recharged or “refilled” up to 5 times.
Too bad it comes only in the AA size, as we would like to see different sizes being made available to the masses – using Eneloops from Sanyo might be overkill for your remote controls, but with the NoPoPo, it seems to be the perfect solution without having Greenpeace activists knock on your door to ask you to reduce your disposable battery usage.