For the newest generation of batteries (Late 2010 and later): Quote: The built-in battery of your MacBook, MacBook Pro or MacBook Air is designed to deliver up to 1000 full charge and discharge cycles before it reaches 80 percent of its original capacity.

Alternatively, take it to your local Apple Authorized Service Center or a Genius Bar. If your MacBook turns off when it is unplugged from the power source, there are several possible causes. That could be an issue with the battery itself, hardware or software problems related to power management, or something else.

About this item . A1496 A1405 A1377 Battery - Health:100%+,Capacity: 55Wh, Voltage: 7.6V, Type: Li-Polymer ; Applicable-> MacBook Air 13 inch Battery Model: A1466 (Mid 2012,Mid 2013,Early 2014,Early 2015, Mid 2017), A1369 (Late 2010, Mid 2011) or EMC: 2469/2559/2392/2632/2925 or Part number: MC503xx/A MC965xx/A(See More on description)
In essence, the refreshed MacBook showcases the same aluminum uni-body construction of the Air, only it’s substantially thinner and lighter than its like-minded counterpart. It measures a mere 0 The MacBook Air is a line of laptop computers developed A mid-2009 revision featured slightly higher battery capacity and a faster Penryn CPU. Early 2015 2017 . 435 116 285 125 325 450 423 164

macbook air 2015 battery capacity