All-Day Battery Life With the 13″ MacBook Air

Walt Mossberg, for AllThingsD:

For these tests, I used the same tough laptop battery test I’ve used for years. I disable all power-saving features, crank the screen brightness to 100 percent, leave on the Wi-Fi to collect email in the background and play an endless loop of music until the computer loses power and shuts off.

For the new 13-inch MacBook Air, Apple claims battery life of up to 12 hours. In my tests, the Air lasted an amazing 10 hours and 14 minutes, the longest any single-battery laptop I’ve reviewed has ever gone and about what an iPad gets.

PCMag found over 15 hours of battery life when running its own set of tests. Impressive, to say the least. And we’re merely at the tick.