Awesome Battery Life - The 2013 MacBook Air Review (11-inch)
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Apple MacBook Air 11-Inch (2015)
Amazon.com: POWERWOO A1465 Battery, A1406 A1370 A1495 Replacement Battery for Laptop MacBook Air 11 inch (Mid 2011 2012 2013 Early 2014 2015 Version) - High Performation [39Wh/7.6V/5100mAh] : Electronics
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MacBook Air (11-inch, Mid 2013) - Technical Specifications
Amazon.com: A1466 Battery 【Higher Capacity 8000+mAh】 MacBook Air Battery Replacement for MacBook Air 13 inch A1466 (Mid 2012, Mid 2013, Early 2014, Early 2015, 2017) A1369(Late 2010,Mid 2011)【2nd Version Upgrade】 : Electronics