Mid 2015 15" rMBP - Battery replacement - Go to Apple or DIY? : r/macbookpro
New model, two-year-old processor: The 2015 15-inch Retina MacBook Pro reviewed | Ars Technica
Replacement Battery for MacBook Pro A1398 (Late 2013, Mid 2014, Mid 2015 Version), Apply to MacBook Pro 15 inch Retina Late 2013Mid 2014 and Mid 2015 - TECHOWL A1494 A1618 Battery - Newegg.com
Battery A1618 Macbook Pro 15'' Retina A1398 (2015) 11.36V 99Wh 8755mAh Orig ic - buy with delivery from China | F2 Spare Parts
Apple recalls older 15-inch MacBook Pros because the batteries could catch fire - The Verge
Amazon.com: iFixit A1398 A1618 Battery for MacBook Pro 15" Retina (Mid 2015) - Repair Kit : Electronics