“ Also, what about the lightweight graphite battery being developed by fireflyenergy. With lightweight batteries you could even exchange battery... (read full comment) ” 

Posted on September 23, 2006 at 9:25 AM EDT

“ electric car battery ideas I think that the 'up and down' motion of cars is completely overlooked and the energy of this up and down motion is... (read full comment) ” 

Posted on September 23, 2006 at 8:45 AM EDT