Kinetic Power Harvesting

I have written about power harvesting before but I noticed this article in the BBC Technology section which shows how a shakable power generating mechanism has been built into a normal AA type battery cell body. The prototype currently generates enough power for about 30 presses of the buttons on a typical TV remote control unit. While not earth-shattering, this could pave the way for not needing to replace batteries in those sorts of devices which we have laying around and rely on but don't require a huge amount of power. This also means many fewer dead traditional batteries going into waste/recycling without the inconvenience of always remembering to have more of the right size battery ready charged.