Lukk A1466 Laptop Battery for Apple A1377 A1369 [Late 2010, Mid 2011, Mid 2012, Mid 2013, Early 2014] MacBook Air 13" - Fits A1405 A1496 661-5731 661-6055 MC503 MC504 [Li-Polymer 4-cell 7200mAh] Cell type: Li-Polymer; Cells: 4-cell; Capacity: 7200mAh/55Wh; Voltage: 7.6V. Brand New battery directly from the manufacturer. Compact design & Precise cutout perfectly fit your laptop just like the original. Grade A Li-Polymer cells mitigate the risk of battery leakage and maximize output stability. Built-in circuit protection enhances safety of usage and extends battery life. Expected operation time: around 2 hours. The actual operation time will be subject to the way you use it. Up to 500 rechargeable cycles over the life of the battery. Buy with confidence: CE/FCC/RoHS Certification / 18-Month hassle-free warranty / great customer service leave you no worries after purchase.