been wanting eneloop batteries since I can remember. i just never could find them locally and it takes me forever to make up my mind to buy something online. I still have some Sanyo and some Kodak batts I use in my mouse and keyboard. really surprised how long the Sanyo batteries have lasted. bought a whole set from aaa to d and have only ever used the four aa and c's. would love to hack the wall wart off and stick a solar panel on there. that would give a whole range of batteries if the lights go out.