A1322 Battery for Apple MacBook Pro 13 inch A1278 (Mid 2009 - Mid 2012)
Amazon.com: A1322 A1278 Battery - Replacement Battery A1278 for MacBook Pro 13 inch [2009 2010 2011 2012 Version] - High Capacity and Longevity [10.95V/63.5WH] : Electronics
Amazon.com: New A1322 A1278 Laptop Battery Compatible with MacBook Pro 13 inch 13" Mid 2012, Late 2011,Early 2011,Mid 2010, Mid 2009 MB990LL/A MB991LL/A MC375LL/A MC374LL/A MD314LL/A MC724LL/A MC700LL/A MD313LL/A : Electronics
Amazon.com: A1321 A1286 Battery for Apple Mac Book Pro 15 inch (Only for 2009 2010 Version) Fits MB985 MB986J/A MC118 MB986 Series Notebook -Ankon : Electronics
How to Upgrade/Replace the Battery in a 17-inch MacBook Pro 2009 – 2010 MacBookPro5,2 MacBookPro6,1 - YouTube