Apple MacBook Pro 15-Inch Retina Display (2014) Review | PCMag
What is the "real-world" battery life of the "Late 2013" and "Mid-2014" 13-Inch and 15-Inch Retina Display MacBook Pro? How does the battery life compare to earlier models? - Techable
Amazon.com: 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) 7200mAh,fits A1496 A1405 A1377 [New Upgraded 3.0] : Electronics
MacBook Air 13" Early 2014 Battery Replacement - iFixit Repair Guide
New model, two-year-old processor: The 2015 15-inch Retina MacBook Pro reviewed | Ars Technica
Review: Apple's mid-2014 15-inch MacBook Pro with Retina display | AppleInsider