When we want to fast-forward through battery removal we go double time on our screw removal.

iFixit fun fact: All iFixit guide makers must be ambidextrous enough to simultaneously use two screwdrivers.

The 7.6 V, 7150 mAh battery inside this year's Air is an upgrade from the 2012's 7.3 V, 6700 mAh power source and contributes to the claimed 12-hour battery life.

Increased capacity isn't the only addition to the new battery—important information is now printed in Chinese Korean as well as English.