How to Replace the Battery in an 11-inch MacBook Air (2011) MacBookAir4,1 - YouTube
Laptop Battery Apple MacBook Air 11-inch
Amazon.com: E EGOWAY Replacement A1406 A1495 Laptop Battery Compatible with MacBook Air 11 inch A1465 A1370 Mid 2011 2012 2013 Early 2014 and Early 2015 Version : Electronics
MacBook Air 13" Late 2010 Battery Replacement - iFixit Repair Guide
Apple MacBook Air 11" A1406 Battery for A1370 Mid 2011 7.6V 35WH | eBay
Battery A1406 A1495 for Apple MacBook Air 11 inch A1465 A1370 mid-2011 only 603964634122 | eBay
Amazon.com: Puredick A1406 A1465 Battery, Replacement Battery for MacBook Air 11 inch (2012-2015 A1465) and (Mid 2011 A1370) - A1406 A1495 Battery for 11-inch MacBook Air [7.3V/35W/4790mAh] : Electronics
Amazon.com: Replacement Laptop Battery for Apple MacBook Air 13 inch A1466(Mid 2012, Mid 2013, Early 2014, Early 2015,2017) A1369(Late 2010, Mid 2011 Version) 7200mAh,fits A1496 A1405 A1377 [New Upgraded 3.0] : Electronics
NEW Genuine A1377 A1369 Battery for Apple MacBook Air 13'' Late 2010 MC503 MC504 | eBay
New Genuine Original A1405 Battery Apple MacBook Air 13" A1369 2011 A1466 2012 | eBay