Runpower Replacement Battery for Apple 13 inch MacBook Pro A1278 (Mid 2009, Mid 2010, Early 2011, Late 2011, Mid 2012) A1322[10.95V/6000mAh] Battery type: Li-Polymer; Capacity: 65Wh/6000mAh; Cells: 6-cell; Voltage: 10.95V Compatibility: Made for Apple's 13 inch MacBook Pro [A1278] versions MB990LL/A, MB991LL/A, MC374LL/A, MC375LL/A, MC700LL/A, MC724LL/A, MD314LL/A, MD313LL/A, MD101LL/A, MD102LL/A (see compatible models). 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 Warranty: 18 months free warranty. 24 x 7 professional and efficient email support