How To ... Replace 13" MacBook Pro Battery - YouTube
MacBook Pro Battery Replacement (Early 2011 to Mid 2012) - YouTube
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
Recyclers disagree on impact of glued-in Retina MacBook Pro batteries | Ars Technica