Genuine A1494 ME293 ME294 Original Battery Apple Macbook Pro 15" Retina A1398 - Newegg.com
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) - Newegg.com
Amazon.com: iFixit A1398 A1494 Battery for MacBook Pro 15" Retina (Late 2013/Mid 2014) - Repair Kit : Electronics