Runpower New Laptop Battery for Apple A1382 A1286 (only for Core i7 Early 2011 Late 2011 Mid 2012) Unibody MacBook Pro 15 inch[Li-Polymer] Battery type: Li-Polymer; Capacity: 79Wh/7200mAh; Cells: 6-cell; Voltage: 10.95V 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: 12 months free warranty. 24 x 7 professional and efficient email support