Amazon.com: iFixit A1398 A1494 Battery for MacBook Pro 15" Retina (Late 2013 /Mid 2014) - Repair Kit : Electronics
Bought this Old late 2013 16gb a1398 15inch MacBook Pro. Had Yosemite OS installed and only 32 battery cycles. Hardly used it seems. I know people more excited about the new 2020
Repair: MacBook Pro 15, Late 2013 Battery Replacement [ENGLISH] - YouTube
Battery Replacement for Macbook Pro 15" A1494 A1398 (Late 2013-Mid 201 – Screenhug
MacBook Pro 15" Retina Display Late 2013 Battery Replacement - iFixit Repair Guide
Amazon.com: A1494 Laptop Battery for MacBook Pro 15 inch Retina A1398 Late 2013 Mid 2014 Early 2015 Version, ME293 ME294 MGXA2 MGXC2 MJLQ2 MJLT2 MJLU2 : Electronics