You can finally replace the battery in your MacBook Pro with Retina by yourself if you've got the nerve | iMore
How to replace a 13-inch MacBook Pro battery
Apple's new MacBook Pro has a DIY-friendly battery replacement procedure, says iFixit
Free Batteries Replacement for MacBook Pro 2012-2013 | iGotOffer
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide
Apple Has Fully Restored Inventory of Mid 2012 and Early 2013 MacBook Pro Batteries - MacRumors
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide
Apple Exchanging Some 2012 and Early 2013 MacBook Pros Needing Battery Service With Newer Models [Updated] - MacRumors
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
Recyclers disagree on impact of glued-in Retina MacBook Pro batteries | Ars Technica
iFixit Launches Repair Guides for Retina MacBook Pro - MacRumors
MacBook Pro 15" Retina Top Case w/ Battery (Mid 2012 - Early 2013) - 661-6532