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How to replace the battery in Apple MacBook Pro 15-inch A1417 for model A1398 (Mid 2012) - YouTube
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Replacing the Battery in a MacBook Pro Unibody (2009-2012) in 5 Minutes! - YouTube
13 Inch MacBook Pro Replacement Battery A1278 | MacMemory.com
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Apple Has Fully Restored Inventory of Mid 2012 and Early 2013 MacBook Pro Batteries - MacRumors