Conserve Your Mac's Battery Power With This Keyboard Setting
by Emily Price from Lifehacker on (#44KC2)
Whenever I fly, I always end up dialing the brightness down on my laptop to its lowest possible setting. In some cases, I'm straining my eyes to be able to see what's on the screen, but it's worth it for the precious few extra minutes of battery life I might get while I'm in the air and away from power.