"Researchers at the Massachusetts Institute of Technology have been working on an interesting new way of extending battery life. Their technique uses a device called an "ultracapacitor," which, unlike the time-traveling flux capacitor, actually exists as a product. The nano-enhanced ultracapacitors are still three to five years from being ready for release in commercial products. Until these products get closer to release, there is no firm data about what kind of battery life increases can be expected, but Schindall hopes to achieve a power density of up to 100 kW/kg, which is three orders of magnitude greater than conventional Lithium-Ion batteries, with an energy density of 60 Wh/kg."I think we all could use more battery life from our various toys, so it will be interesting to see if this research bears fruit.