How to check into a free battery replacement for MacBook Pro - 9to5Mac
Amazon.com: A1618 New Laptop Battery Replacement A1494 A1398 Battery for MacBook Pro Mid 2015 Mid 2014 Late 2013 15 inch Retina MJLQ2LL/A MJLT2LL/A MJU2LL/A EMC 020-00079 02000079 [11.36V/99.5Wh] : Electronics
15" MacBook Pro Retina - Battery Removal - YouTube
How to Upgrade / Replace the Battery in a MacBook Pro Retina 15-inch (late 2013 to mid 2015) on Vimeo
Amazon.com: Techowl Replacement Battery for MacBook Pro A1398 (Late 2013, Mid 2014, Mid 2015 Version), Apply to MacBook Pro 15 inch Retina Late 2013,Mid 2014 and Mid 2015 A1494 A1618 Battery : Electronics