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: A1417 Battery Only for (Mid 2012 & Early 2013) A1398 MacBook Pro - Replacement Battery for A1398 MacBook Pro 15-inch Retina (Mid 2012, Early 2013 Version) - EMC 2512 or 2673 [11.26V/99Wh] : Electronics
Battery for Apple Macbook Pro 15.4'' A1286(Early 2011 Mid 2012) 15" A1382 ONLY 603964616081 | eBay
Original A1322 Replacement Battery for Apple MacBook Pro 13 inch A1278 2012 [65Wh/10.95V/6000mAh] - Newegg.com
A1322 Original Battery for A1278 Apple MacBook Pro 13 inch 2009 2012, A1322 Battery for Apple MacBook Pro 13 inch A1278 (Mid 2009 – Mid 2012) - WIT Computers
Amazon.com: Easy&Fine Replacement A1322 Laptop Battery for MacBook Pro 13" A1278 Battery (2012 2011 2010 2009 Version),MB990LL/A MB991ll/A MC374ll/A MC375LL/A MC700ll/A MD101LL/A MD102LL/ MacBook pro Mid 2012 : Electronics
How to Replace the Battery in a 13-inch MacBook Pro 2012 on Vimeo