The warranty on the previous-generation LEAF's battery covered it against defective materials or workmanship for five years.

ENGADGET: New Nissan Leaf comes to the UK with battery leasing option, extended range

I'm speaking, of course, about concerns regarding the rate of battery capacity loss in the Nissan LEAF's Lithium-ion battery.

ENGADGET: Nissan upgrades US Leaf warranties, will 'restore' batteries that lose too much charge

The Leaf will rely on battery power alone and will have a range of about 160km (100 miles) before it needs to be plugged in for a fresh charge.

ECONOMIST: Electric cars: Charge! | The