Replacing the Battery in a MacBook Pro Unibody (2009-2012) in 5 Minutes! - YouTube
A1322 Battery for MacBook Pro 13" Unibody A1278 Mid 2009-2012
Amazon.com: Ftenlyen A1322 A1278 Battery Replacement - A1322 Battery for MacBook Pro 13 inch Mid 2012 2010 2009 Early 2011 Late 2011 Version High-Performance and Long Lasting [ 10.95V 63.5WH ] : Electronics
Amazon.com: A1278 A1322 Battery Compatible with Apple MacBook Pro 13 inch Mid 2012 2010 2009 Early Late 2011 MD313LL/A MC374ll/A MD101LL/A MB990LL/A MC724LL/A MD314LL/A MC700LL/A MD102LL/A 661-5557 020-6765-A : Electronics
Internal Replacement Battery A1382 for MacBook Pro 15'' (only for Early/Late 2011, Mid 2012) Fit MC721LL/A MC723LL/A - Micro Center
MacBook Pro (Retina, 13-inch, Late 2012) - Technical Specifications
Amazon.com: E EGOWAY A1425 Replacement Laptop Battery for MacBook Pro Retina 13 inch A1437 (Late 2012, Early 2013 Version) : Electronics
Internal Replacement Laptop Battery A1322/A1278 Compatible with MacBook Pro 13'' (Mid 2009, Mid 2010, Early 2011, Late - Micro Center
Amazon.com: A1278 A1322 Battery, POWERWOO MacBook pro Battery Replacement 13 inch Mid 2012 2010 2009 Early 2011 Late 2011, a1278 Battery with 6000mAh 10.95V 65.7Wh - High Performance and Longevity : Electronics
Amazon.com: A1382 Battery for MacBook Pro 15 inch A1286 Early 2011 Late 2011 Mid 2012 New Replacement Laptop Battery (7200mAh 10.95V/78.84Wh 25 Months Warranty) : Electronics