“Posawatz said the Volt’s lithium-ion batteries can store about the same amount of power (16 kilowatt-hours) and provide nearly the same vehicle range (40 miles or more) as the EV1’s lead-acid batteries. However, the lithium-ion batteries, located under the Volt’s chassis and are about a third the size of the EV1’s, should last the vehicle’s lifetime.”
Here is price per Kilowatt hour
http://www.ppinys.org/reports/jtf/electricprices.html
NEW YORK 14.54 cents
So $2.33 to recharge