Electric car batteries enjoy life after death

They may add thousands of dollars to the purchase price of the vehicle itself, but now it looks like used Chevrolet Volt batteries will extend their usefulness in the greening of society beyond their use on the road.

ABB and GM have announced that the lithium-ion packs that power the Chevy Volt have been successfully re-used in a prototype unit that provides 25kW of power and 50kWh of energy for the home, enough to electrify three to five average US homes for two hours, say ABB.

The back-up energy storage unit repackages five used batteries, thus considerably extending their total useful lives and, perhaps, making the initial high cost of the batteries a more attractive initial investment.