Throughout the latter half of this year, our technical teams have worked diligently to ensure that the batteries installed in Nissan LEAFs were operating to specification.

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

Increased operating spectrum: the specification will expand operations into an additional spectrum, up to an order of magnitude beyond current powerline technology.

ENGADGET: HomePlug Powerline Alliance reveals features of new HomePlug AV2 spec

Much advice on offer online suggests souping up the specification of a netbook so it can run Microsoft's Windows XP operating system, rather than the free, open-source Linux system that is offered as standard on many netbooks.

ECONOMIST: Rational consumer