Floureon&reg; Replacement Laptop Battery for Apple A1322 A1278 (2009 2010 2011 Version) Unibody MacBook Pro 13'' fits 661-5557 661-5229 MB990LL/A MB991LL/A+ 6100mAh 67Wh With Screwdrivers Lithium Cobaltate (One Year Warrant) Compatible with Original Apple MacBook Batteries: for Apple Original Battery Model: Apple A1322 Compatible with Apple MacBook Pro 13 Compatible with:Apple MacBook Pro Cell Type: Genuine Lithium Cobaltate,Chemistry: Li-Polymer Capacity: 6100mAh. Battery Power: 67Wh.Voltage: 10.95V