From the new Engadget review:
Despite that, we had no issues with battery life. On our standard rundown test, where we'll loop a video until the machine calls it quits, the new Air clocked in at just over five and a half hours. That's well more than the Lenovo X1 recently managed on the same test and actually about an hour more than last year's model managed when we dusted it off and ran it through the same wringer. Even running Windows the Air managed 4:12 on the same rundown test, on par with the Samsung Series 9.
In standard usage, surfing and typing and Facebooking and such, you should be able to do much better. The Air routinely beat our expectations -- and its own estimates -- for battery life. The seven hours Apple advertises for the 13 (five for the 11) is well within reach if you're not doing anything too taxing. And of course that's a good thing, because you won't be replacing the battery here without a screwdriver.
http://www.engadget.com/2011/07/25/macbook-air-review-mid-2011/
Despite that, we had no issues with battery life. On our standard rundown test, where we'll loop a video until the machine calls it quits, the new Air clocked in at just over five and a half hours. That's well more than the Lenovo X1 recently managed on the same test and actually about an hour more than last year's model managed when we dusted it off and ran it through the same wringer. Even running Windows the Air managed 4:12 on the same rundown test, on par with the Samsung Series 9.
In standard usage, surfing and typing and Facebooking and such, you should be able to do much better. The Air routinely beat our expectations -- and its own estimates -- for battery life. The seven hours Apple advertises for the 13 (five for the 11) is well within reach if you're not doing anything too taxing. And of course that's a good thing, because you won't be replacing the battery here without a screwdriver.
http://www.engadget.com/2011/07/25/macbook-air-review-mid-2011/