Join Collin as he goes hands-on with the evolution of the battery – from building a simple voltaic pile to the inner layers of a lithium ion cell.-----------------------------------------Visit the Adafruit shop online - http://www.adafruit.comSubscribe to Adafruit on YouTube: http://adafru.it/subscribeJoin our weekly Show & Tell on G+ Hangouts On Air: http://adafru.it/showtellWatch our latest project videos: http://adafru.it/latestNew tutorials on the Adafruit Learning System: http://learn.adafruit.com/Music by Collin Cunningham: http://soundcloud.com/collinmel-----------------------------------------