Batterytec&reg;56Wh Laptop Battery for Apple A1322 A1278 (2009 Version) Unibody MacBook Pro 13'', fits MB990*/A MB990LL/A MB990J/A- 12 Months Warranty [Li-Polymer 6-cell 5000mAh] 100% New from Manufacturer plus 12 month hassle-free warranty Battery type: Li-Polymer; Capacity: 5000mAh/56Wh; Cells: 6-cell; Voltage: 11.1V. CE-/FCC-/RoHS-Certified for safety. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability.