Apple Still Offering Free Delayed Battery Repairs for Some 2012 and Early 2013 MacBook Pros - MacRumors
Original A1322 Replacement Battery for Apple MacBook Pro 13 inch A1278 2012 [65Wh/10.95V/6000mAh] - Newegg.com
2012 MacBook Pro 13" Retina A1425 EMC 2557 Apple Original A1437 Genuine Battery | eBay
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 the Battery in a 13-inch MacBook Pro 2012 (MacBookPro10,2) - YouTube
Battery for Apple MacBook Pro 13 Retina A1437 - A1425 (6600mAh)
Amazon.com: E EGOWAY A1425 Replacement Laptop Battery for MacBook Pro Retina 13 inch A1437 (Late 2012, Early 2013 Version) : Electronics