Friday December 15, 2017

Balls That Charge Your Batteries
  Posted by: Digg on May 5th, 2009 10:10 AM
The aptly named Roll Charger harnesses energy from the ball's motion. It converts that kinetic energy into electricity. That electricity is then used to charge a single battery within the ball.<img src="" height="1" width="1"/>

Read More

View All Articles