Man, they said we better accentuate the positive... eliminate the negative... latch on to the affirmative....
Microsoft introduces "an amazingly obvious tweak to battery tech that should save us some headaches, as well as several trillion hours of head-scratching and peering into dark holes." The innovation, called "Instaload" is a simple, low-tech battery contact design that allows cylindrical batteries (disposable and rechargeable) to be inserted in either direction, so users don't have to worry about which end is positive or negative. How? It puts a set of positive and negative contacts at both ends of a battery compartment. (From Microsoft: Press Release / Overview / Technology Brochure (pdf)) [more inside]