[0002]Kinetic energy harvesting has the potential to at least partially address this challenge. Battery powered devices are often portable. Indeed, many such devices easily fit within a pocket or purse and experience continued motion over relatively long periods of time. Associated with that motion is acceleration in numerous directions, which acceleration causes masses of various elements within the device to impose a variety of forces. If a significant portion of the energy associated with those forces can be converted to electrical energy, such electrical energy could be used to at least partially recharge the device battery.