BRTONG New Laptop Battery for MacBook Air 11 inch A1370 (Mid 2011) A1465 (Mid 2012,Mid 2013,Early 2014,Early 2015) A1406 A1495 Compatible Models: MacBook Air 11.6" inch (2011, 2012, 2013, 2014, 2015 Version) Compatible part number: 020-7376-A, 020-7377-A, 2ICP4/46/66-1, 2ICP4/72/56-1, 2ICP4/55/81-1, MC968*/A, MC968CH/A, MC968J/A, MC968LL/A, MC968LL/B, MC968TA/A, MC968ZP/A, MC968E/A, MC968B/A, MC968LL/A* MD223*/A, MD223CH/A, MD223J/A, MD223LL/A, MD223LL/B, MD223TA/A, MD223ZP/A, MD223E/A, MD223B/A, MD223LL/A* MD711*/A, MD711CH/A, MD711J/A, MD711LL/A, MD711LL/B, MD711TA/A, MD711ZP/A, MD711E/A, MD711B/A, MD711LL/A*, MD711LL/B* Battery type: Li-ion; Watt/hr: 39Wh; Voltage: 7.6V Operation time for standard batteries: Around 3 hours, the actual operation time will depend on how much electricity is required by the device and how you use it Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety, About 500 recharge cycles over the life of the battery. 24 x 7 email support, 18-month hassle-free warranty