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MacBook Pro 13" Retina Display Late 2012 Battery Replacement - iFixit Repair Guide
Amazon.com: A1278 A1322 Battery, POWERWOO MacBook pro Battery Replacement 13 inch Mid 2012 2010 2009 Early 2011 Late 2011, a1278 Battery with 6000mAh 10.95V 65.7Wh - High Performance and Longevity : Electronics
Mid-2012 Macbook Pro Battery Replacement - YouTube
Replacing the Battery in a MacBook Pro Unibody (2009-2012) in 5 Minutes! - YouTube