The 'green' side of the Seattle Auto Show
Credit: Lucas Anderson / KING 5 News
Hyundai's 2012 Sonata hybrid has a Lithium Polymer battery, which Hyundai says is lighter and can be charged longer than competitor's batteries.
Credit: Lucas Anderson / KING 5 News
Hyundai's 2012 Sonata hybrid has a Lithium Polymer battery, which Hyundai says is lighter and can be charged longer than competitor's batteries.
