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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"
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Amazon.com: NinjaBatt Battery A1278 A1322 for Apple MacBook Pro 13" [Mid 2012 2010 2009 Early 2011 Late 2011] - High Performance [76.56Wh/11.6Vv] : Electronics
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