Amazon.com: NinjaBatt Battery A1502 A1582 for Apple MacBook Pro Retina 13” A1493 [Early 2015, Mid 2014, Late 2013] - High Performance [75Wh/11.42V] : Electronics
Amazon.com: iFixit A1398 A1494 Battery for MacBook Pro 15" Retina (Late 2013/Mid 2014) - Repair Kit : Electronics