You can wear out most batteries in under a year of daily use and nightly recharges so no, I don't think it met your spec. The MacBook Air hit 10 hours in idle and over 5 hours under usual loads so while it could still miss your specs a year from now at least it delivered it right out of the box.
http://www.notebookcheck.net/Review-Apple-MacBook-Air-11-Mid-2013-i5-1-3-GHz-128-GB.96570.0.html
Bob

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