Oakwill Compatible with MacBook Air Charger 45W Mag Safe 2 Magnetic T-Tip Power Adapter, Charger for MacBook Air 11"&13" 45W Macbooks After Late 2012 Fully compatible: Part Number:A1436 A1466; MacBook Air (13-inch, Mid 2012); MacBook Air (11-inch, Mid 2012); MacBook Air (13-inch, Mid 2013); MacBook Air (11-inch, Mid 2013); MacBook Air (13-inch, Early 2014); MacBook Air (11-inch, Early 2014); MacBook Air (13-inch, Early 2015); MacBook Air (11-inch, Early 2015); MacBook Air (13-inch, 2017) Premium Components: Our batteries are beautiful on the inside and out! This battery features a Texas Instrument main board, state of the art over circuit protection, and highest grade li Polymer Cells. Energy Efficiency: Max Utilization Technology insures that the battery is always in-sync with your power settings to give you maximum battery life for every charge. Input: AC 100-240V 50-60Hz, Output: 14.85V 3.05A 45W. Knowing what specific Mac model you have is important.Please check out carefully Before Purchasing. Features Magnetic DC Connector:The magnetic DC connector makes it easy to disconnect harmlessly the cord if someone should trip over it,your MacBook Air stays put safely,and also helps prevent fraying or weakening of the cables over time.