MacBook Pro 15" Retina Top Case w/ Battery (Late 2013 - Mid 2014) - 661-8311
NewerTech Macbook Pro Battery Replacement | stackunderflow
Amazon.com: A1618 A1494 A1398 Battery for MacBook Pro Battery 15 inch Retina Mid 2015 Mid 2014 Late 2013, Fit for MacBookPro 11,2 11,3 11,4 11,5 2013 2014 2015 MacBook pro 11.26V/95Wh : Electronics
MacBook Pro 15" Retina (Late 2013-Mid 2014) Battery – iFixit Store
MacBook Pro 15" Retina (Late 2013-Mid 2014) Battery - iFixit
A1398 Battery 15 inch MacBook Pro Retina Late 2012, 2013, 2014 A1494 661-00123 NB-5268W