Amazon.com: Temark A1417 Laptop Battery Compatible with MacBook Pro 15 inch Retina A1398 (Mid 2012 Early 2013), fits for MC975LL/A MC976LL/A ME664LL/A ME665LL/A (8800mAh) : Electronics
New Battery For Apple Macbook Pro 15 Inch A1175 A1150 A1260 A1226 A1211 Ma348g/a - Laptop Batteries - AliExpress
Amazon.com: iProPower A1382 Battery for MacBook Pro A1286 15" inch Laptop [Only for Early 2011, Late 2011, Mid 2012 Version] High Capacity 7200mAh 10.95V/77.5Wh Replacement Battery : Electronics
A1417 Battery for MacBook Pro 15" Retina A1398 (Mid 2012-2013)
Apple Macbook Pro 15'' Retina i7-3820QM 2.7GHz 16GB 512GB A1398 MD831LL/A 2012 | eBay