bike charge



Bike Charge is an inexpensive solution to the cost of batteries, which power many common items in developing countries and in the rest of the world. Although rechargeable batteries are now available worldwide, the cost of using them often does not match the cost of the power and supplies necessary to run them. Bike Charge recharges batteries from the energy of a bicycle, reducing dependence on the availability of wall current and effectively using the time and energy spent on a bike.

pictures & presentation
  • pictorial documentation

  • presentation - given 17 December 2001. powerpoint 2000 format.



  • resources
  • [beijing.chinats.com] - Bicylces in Beijing, China
  • [cia.gov] - World Factbook, 2001
  • [wri.org] - World Resources 1997
  • [howstuffworks.com] - How Batteries Work
  • [howstuffworks.com] - Power from Bicycles
  • [ebnews.com] - Rechargeable battery market



  • documentation & cad files
    For specific references on parts and cad files, please email skd at mit dot edu. Due to a rapidly approaching Athena quota, I can't make these publicly available at this time. Parts for the laser cutter and water jet were initially drawn up in CorelDraw 10. Components designed/modeled/rendered in CAD were done in Solidworks 2001. Parts were purchased from digi-key, Radio Shack, and Active Electronics in Cambridge, MA.





    other assignments