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Heel-bottom mounted cell phone charger

Charge your cell phone by walking
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Wouldn’t it be nice to be able to charge your cell phone by just walking? Imagine a charging unit (primarily made out of piezoelectric ceramics/crystals) mounted at the heel-bottom of one of your shoes, pumps out electrical juice on every step you make. Guess this kind of chargers could be a lot more effective than hand cranking ones, because legs are stronger than arms. The cell phone could be carried in an ankle holster, so the wiring to the charging unit is shortened. Otherwise, the long wire between your cell phone and the shoe makes you look really weird. Of cause, you can always hide the wire in your pants. I think the same concept also works on the charging of mp3 player, PDA, and other mobile gizmos. How does this idea sound?
xuxun_wuhan, Jan 29 2004

Done http://www.halfbake.../idea/Piezo_20shoes
Without the application to mobile phone. [sidi, Oct 04 2004]

[link]






       Bravo.
anzlovar, Jan 29 2004
  

       Good Idea. Alredy done though. (See link). You could even afford a spare battery to put in your shoe, that charges while you use the other (battery). Welcome to you.
sidi, Jan 29 2004
  

       I like it!
nomadic_wonderer, Jan 29 2004
  

       Whoops! Didn’t see that. Hope something similar is already on way to the market. I’d be among the first buyers.
xuxun_wuhan, Jan 30 2004
  

       You got to my idea first.   

       Oh well.
DesertFox, May 24 2004
  

       see vedarshi's post last week under the title Elephant Electricity (-)
vedarshi, May 25 2004
  

       not a bad idea mate, not bad at all. One thing that baffled me at first...when you're phone is charging at your ankle, what do you do if it rings? but of course....bluetooth!
shinobi, May 25 2004
  
      
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