<A target="_blank" href="http://www.wired.com/gadgetlab/2010/11/lack-of-flash-gives-macbook-air-two-extra-hours-of-battery-life/#">Flash is known to strain the batteries of small devices, like cell phones</A>, but has not been examined on larger devices. Recently it was put to the test on an 11-inch MacBook Air, with surprising results.