The MacBook Air 13-inch (A1405, A1377, A1496, A1369, A1466) battery is a 55Wh Li-Polymer battery with a capacity of 7200mAh. It has a voltage of 7.6V compatible with various MacBook Air models, including the A1369 (Late 2010, Mid 2011), A1466 (Mid 2012, Mid 2013, Early 2014, Early 2015), and others. Compatibility: A wide range of MacBook Air 13-inch models, including those with model numbers A1405, A1377, A1496, A1369, and A1466. Specifically, the A1466 model includes versions from Mid 2012 to Early 2015.