NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Unibody Early & Late 2011, Mid-2012 Models
Recyclers disagree on impact of glued-in Retina MacBook Pro batteries | Ars Technica
Batteries for MacBook Pro 13" 2009 - Current Non-Retina Models
Original A1618 Genuine OEM Battery Apple MacBook Pro 15" Retina A1398 Mid 2015 763383128173 | eBay
Replacement Laptop Battery For Apple Macbook Air 13 Inch A1466(Mid 2012, Mid 2013, Early 2014, Early 2015,2017) A1369(Late 2010, Mid 2011 Version) | Shopping from Microsoft Start
iFixit posts repair guide for Retina MacBook Pro, estimates battery replacement at $500 - 9to5Mac
NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Retina mid 2012 to early 2013 Models
Apple Has Fully Restored Inventory of Mid 2012 and Early 2013 MacBook Pro Batteries - MacRumors
Amazon.com: A1382 Battery for MacBook Pro 15 inch A1286 Early 2011 Late 2011 Mid 2012 New Replacement Laptop Battery (7200mAh 10.95V/78.84Wh 25 Months Warranty) : Electronics
Amazon.com: iFixit A1398 A1417 Battery for MacBook Pro 15" Retina (Mid 2012-Early 2013) - Repair Kit : Electronics
How to Replace the Battery in a 13-inch MacBook Pro 2012 (MacBookPro10,2) - YouTube
Amazon.com: A1417 Battery Only for (Mid 2012 & Early 2013) A1398 MacBook Pro - Replacement Battery for A1398 MacBook Pro 15-inch Retina (Mid 2012, Early 2013 Version) - EMC 2512 or 2673 [11.26V/99Wh] : Electronics