Other Hardware Changes - Apple's 2009 MacBook Pro: Battery Life to Die For
Egoway 7200mAh/79Wh Replacement Battery A1321, Made for Mid 2009 Early
Amazon.com: CSEXCEL New Laptop Replacement Battery for Mac Book Pro 13" A1322 A1278 (Mid 2009, Mid 2010, Early and Late 2011, Mid 2012 Version) Grade A Cell,10.95V 6000mAh/65.5 Wh : Electronics
Apple MacBook Unibody 13 inch A1342 (Late 2009) replacement battery | UAEBattery