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How To Calibrate a Mac Laptop's Power System - NewerTech
13-Inch, 15-Inch MacBook Pro Battery Life, Mid-2012: EveryMac.com
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Amazon.com: E EGOWAY A1425 Replacement Laptop Battery for MacBook Pro Retina 13 inch A1437 (Late 2012, Early 2013 Version) : Electronics
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Battery Life - 13-inch Retina MacBook Pro Review (Late 2012)
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How to Replace the Battery in a MacBook Pro Retina 13-inch (late 2012 - early 2013) MacBookPro10,2 - YouTube
What is the "real-world" battery life of the "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" non-Retina Display MacBook