Ladyada stops by to drop knowledge on the subject of portable power, with tips for working with lithium ion, NiMh, alkaline, & more.-----------------------------------------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 collinmel: http://soundcloud.com/collinmel-----------------------------------------