LQM New Laptop battery for Apple A1331 A1342 13.3 Inch MacBook Unibody (for MacBook Late 2009 Mid 2010) MacBook Air MC234LL/A MC233LL/A, fit: 661-5391 020-6580-A Brand New - High Quality,6 cell, 10.95V,60Wh Battery,package include battery with two Free Screwdrivers Replacement For: Apple A1331 A1342 Unibody MacBook(for MacBook Late 2009 Mid 2010) Fit Model: 020-6580-A 020-6582-A 020-6809-A 020-6810-A 661-5391 Warranty: 12 Months Warranty,30 days money return guarantee