Review: Apple's mid-2014 15-inch MacBook Pro with Retina display | AppleInsider
How to Replace the Battery in the 15-Inch Retina MacBook Pro: EveryMac.com
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