How to replace MacBook Air 13" Battery (Mid 2012) - YouTube
Amazon.com: iProPower A1322 Battery Replacement for 13 inch MacBook Pro A1278 2009 2010 2011 2012 Year : Electronics
Apple MacBook Pro 15" Retina A1398 (Mid 2012 - Early 2013) - Battery A1417 - Pure Cobalt | Fixshop
Amazon.com: Easy&Fine Replacement A1322 Laptop Battery for MacBook Pro 13 inch A1278 Battery (2012 2011 2010 2009 Version) MB990LL/A MB991ll/A MC374ll/A MC375LL/A MC700ll/A MD101LL/A MD102LL/ MacBook pro Mid 2012 : Electronics
NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Unibody Early & Late 2011, Mid-2012 Models
Amazon.com: New Laptop Replacement Battery for A1278 A1322 [MacBook Pro 13 inch] - (Mid 2009, Mid 2010, Early 2011, Late 2011, Mid 2012), fit MB990LL/A MC724LL/A - [Li-Polymer 6-Cell 66.6Wh 11.1V] : Electronics
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
MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide