Ah yes, that does matter. My 2012 MBA has a better battery life than the 2011 MBA, and this year’s MBAs in turn have way better battery life than my MBA. It als

Ah yes, that does matter. My 2012 MBA has a better battery life than the 2011 MBA, and this year’s MBAs in turn have way better battery life than my MBA. It also matters a great deal whether you have the 11" or the 13" model (which has way better battery life). http://www.everymac.com/systems/apple/macbook-air/macbook-air-faq/macbook-air-mid-2011-real-world-battery-life-core-i5-core-i7.html http://www.everymac.com/systems/apple/macbook-air/macbook-ai...