Replacing the Battery in a MacBook Pro Unibody (2009-2012) in 5 Minutes! - YouTube
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide
Amazon.com: A1417 Laptop Battery Replacement for MacBook Pro 15 Inch Retina A1398 (2012 Early-2013 Version), Replacement ME665LL/A ME664LL/A MD831LL/A MC975LL/A MC976LL/A : Electronics
Macbook Battery Replace with a thread - Part 1 of 2 - YouTube
Amazon.com: iFixit A1398 A1494 Battery for MacBook Pro 15" Retina (Late 2013/Mid 2014) - Repair Kit : Electronics
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide
Amazon.com: A1502 Replacement Laptop Battery for MacBook Pro Retina 13 Inch Late 2013 Mid 2014 Early 2015; MacBook Pro A1493 A1582 Battery EMC 2678 2875 2835 ME864 ME865 : Electronics