Amazon.com: A1466 MacBook air Battery Replacement for MacBook Air 13 inch A1466 (Mid 2012, Mid 2013, Early 2014, Early 2015,2017) A1369(Late 2010,Mid 2011) 7200mAh Laptop Battery A1496 A1377 A1405 EMC 2632 2469 : Electronics
Amazon.com: A1466 Battery For MacBook Air Battery Replacement 13 inch (A1466 2012 - 2015 and 2017) (A1369 2010-2011) - A1377 A1405 A1496 Universal Battery for 13-Inch Macbook Air [7.6V/55W/7200mAh with Warranty] : Electronics
How to replace MacBook Air 13" Battery (Mid 2012) - YouTube