Townpeak Laptop Battery for Macbook air 11-Inch A1406 A1370(Mid 2011 Mid 2012 version) MC968LL/A MC969LL/A With Two Screwdrivers [Li-Polymer 7.3V-35Wh 4680mAh] 18 months warranty 100% Fully Capacity 4680mAh 35Wh 7.3V CE-/FCC-/RoHS-Certified for safety 100% High Quality cells from Factory Fast shipping,18-month warranty 100% inspection before shipping