Battery nerds rejoice: Panasonic has cobbled together an electronic torch that will play nice with almost anything in your collection. The Any Battery Light can siphon power from AA, AAA, D and C-sized batteries, lighting the dark with just a single serving of any compatible size. Loading it up with all four provides up to 86 hours of continuous LED illumination. Not all batteries are equal, of course -- a single AAA isn't going to shine as brightly as its thicker cousins, and users will need to manually flip a switch to choose what size battery the torch draws its light from. Japanese consumers will be able to pick one up for about ¥2,000 ( $23) in red or white later this month.