Apple MacBook Pro (15 inch) review: Apple MacBook Pro (15 inch, Summer 2012) - CNET
Battery - A1417 Battery for Apple A1398 2012 Early-2013 Version MacBook Retina Pro 15-Inch - Lanka Laptop House
Macbook Pro 15" A1398 Battery Replacement for Mid 2012-Early 2013 (Model A1417) at Rs 6500/piece in Chennai
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
Apple Has Fully Restored Inventory of Mid 2012 and Early 2013 MacBook Pro Batteries - MacRumors