Just installed battery #3 in my mid-2015 MacBook Pro. Also applied fresh thermal paste and removed the dust. Here's to many more years of use! : r/ macbookpro
OEM Genuine Battery for MacBook Pro 15" inch Retina A1618 A1398 Mid 2015 99.5Wh | eBay
Amazon.com: iFixit A1398 A1618 Battery for MacBook Pro 15" Retina (Mid 2015) - Repair Kit : Electronics
Amazon.com: NinjaBatt Battery Replacement A1618 A1398 for Apple MacBook Pro Retina 15" [Mid 2015 Year ONLY]- Long Lasting [11.36V/99.5Wh] : Electronics
Original Apple 2015 Macbook Pro 15inch A1398 / 99.5Wh Battery A1618
Purchase a MacBook Pro 15-inch (Mid 2015) Replacement Battery (A1618) | mac of all trades
Amazon.com: iFixit A1398 A1618 Battery for MacBook Pro 15" Retina (Mid 2015) - Repair Kit : Electronics
Amazon.com: A1502 Replacement Laptop Battery for MacBook Pro Retina 13 Inch Late 2013 Mid 2014 Early 2015; MacBook Pro A1493 A1582 Battery EMC 2678 2875 2835 ME864 ME865 : Electronics
How to replace the battery in Apple MacBook Pro 15-inch A1417 for model A1398 (Mid 2012) - YouTube