NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Retina mid 2012 to early 2013 Models
MacBook Pro (Retina, 15-inch, Mid 2012) - Technical Specifications
A1382 Battery for MacBook Pro 15 inch A1286 Early 2011 Late 2011 Mid 2012 New Replacement
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
Replacing the Battery in a MacBook Pro Unibody (2009-2012) in 5 Minutes! - YouTube
Apple Will Finally Replace Batteries in Mid 2012 and Early 2013 MacBook Pros
BatPower A1417 Replacement Laptop Battery for Apple Mid 2012 Early 2013 MacBook Pro 15-inch Retina A1398 EMC 2512 EMC 2673 Battery MacBook Pro 15" A1398 Apple A1417 Battery 95Wh
Batteries for MacBook Pro 13" 2009 - Current Non-Retina Models
A1417 Laptop Battery Replacement for MacBook Pro 15 Inch Retina A1398 (2012 Early-2013 Version), Replacement ME665LL/A ME664LL/A MD831LL/A MC975LL/A MC976LL/A
MacBook Pro 15" Retina Top Case w/ Battery (Mid 2012 - Early 2013) - 661-6532
Recyclers disagree on impact of glued-in Retina MacBook Pro batteries | Ars Technica
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
New Genuine OEM A1382 Battery for Apple MacBook Pro 15" A1286 early 2011 Mid2012 691054657724 | eBay
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide