Battery Life - 13-inch Retina MacBook Pro Review (Late 2012)
MacBook Air review (13-inch, mid-2012) - The Verge
Determine battery cycle count for Mac notebooks - Apple Support
How to tell if your MacBook battery needs to be replaced.
Battery Life - The MacBook Pro Review (13 & 15-inch): 2011 Brings Sandy Bridge
What is the "real-world" battery life of the "Late 2012" and "Early 2013" 13-Inch Retina Display MacBook Pro? How does the battery life compare to the 15-Inch Retina Display and 13-Inch "Mid-2012"
How To Test A MacBook Battery To See If It Needs Replacing And Replace It - Macworld UK
MacBook Pro review (13-inch, mid-2012) | Engadget
Battery service Macbook Pro Mid 2012 - Apple Community
How To Calibrate a Mac Laptop's Power System - NewerTech
MacBook Pro 13" A1322 battery for Apple A1278 (2009-2012)
Quality factors relevant for getting a replacement battery (MacBook Pro (13-inch, Mid 2012)) - Ask Different
Battery Life - 13-inch Retina MacBook Pro Review (Late 2012)
MacBook Pro 13" Unibody (Mid 2009-Mid 2012) Battery - iFixit
MacBook Pro 13" Retina (Late 2012/Early 2013) Battery – iFixit Store
NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Unibody Early & Late 2011, Mid-2012 Models