Apple Still Offering Free Delayed Battery Repairs for Some 2012 and Early 2013 MacBook Pros - MacRumors
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide
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)
Macbook Pro Retina Connector | Macbook Pro 2013 Connector - Pc Hardware Cables & Adapters - Aliexpress
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
Batteries for MacBook Pro 13" 2009 - Current Non-Retina Models
NEW Laptop A1437 Battery for Apple MacBook Pro 13" Retina A1425 2012 020-7851-A | eBay
iFixit A1398 A1417 Battery for MacBook Pro 15" Retina (Mid 2012-Early 2013) - Repair Kit
Battery Life - 13-inch Retina MacBook Pro Review (Late 2012)
Macbook Pro Retina Mid 2015 Battery Replacement - New Original Battery A1425 A1437 - Aliexpress
2012 MacBook Pro 13" Retina A1425 EMC 2557 Apple Original A1437 Genuine Battery 6903690005093 | eBay
New A1437 74WH Laptop Battery Compatible with MacBook Pro 13 inch A1425 ( Retina Late 2012,Early 2013) Fits MD101 MD102 MD212 MD213 ME662 [6600mAh 11.21V]
How to replace the battery in Apple MacBook Pro 15-inch A1417 for model A1398 (Mid 2012) - YouTube
Amazon.com: NinjaBatt Battery A1278 A1322 for Apple MacBook Pro 13" [Mid 2012 2010 2009 Early 2011 Late 2011] - High Performance [76.56Wh/11.6Vv] : Electronics
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide