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
How to Replace the Battery in a 13-inch MacBook Pro 2012 (MacBookPro10,2) - YouTube
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
Original A1618 Genuine OEM Battery Apple MacBook Pro 15" Retina A1398 Mid 2015 763383128173 | eBay
You can finally replace the battery in your MacBook Pro with Retina by yourself if you've got the nerve | iMore
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide