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Early 2011 MacBook Pro 15' Battery Swollen - Apple Community
Apple Releases Firmware Battery Fix for 2010/2011 MacBook Pro 15- and 17-Inch Models - MacRumors
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NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Unibody Early & Late 2011, Mid-2012 Models
Battery Life - The MacBook Pro Review (13 & 15-inch): 2011 Brings Sandy Bridge
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