Runpower New Laptop Battery for Apple A1406 A1495 MacBook Air 11", Also fits A1370 (Mid 2011 Version) A1465 (Mid 2012 Mid 2013 Early 2014 Version) 020-7376-A 020-7377-A [Li-Polymer] Battery type: Li-Polymer; Capacity: 39Wh/5200mAh; Cells: 4-cell; Voltage: 7.6V Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability Worry-free, products are passed CE-/FCC-/RoHS-Certified for safety; 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery Actual operation time will depend on how much electricity is required by the device and how you use it Warranty: 12 months free warranty. 24 x 7 professional and efficient email support