MacBook Pro 13" Unibody Early 2011 Battery Replacement - iFixit Repair Guide
NinjaBatt Battery A1278 A1322 for Apple MacBook Pro 13" [Mid 2012 2010 2009 Early 2011 Late 2011] - High Performance [65.7Wh/10.95v] - NinjaBatt
How to Replace the Battery in a 13-inch MacBook Pro 2012 (MacBookPro10,2) - YouTube
Amazon.com: NinjaBatt Battery A1278 A1322 for Apple MacBook Pro 13" [Mid 2012 2010 2009 Early 2011 Late 2011] - High Performance [65.7Wh/10.95v] : Electronics
How to replace a 13-inch MacBook Pro battery
How to replace the battery in a mid-2012 Macbook Pro | David Artiss