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MacBook Pro 13" Unibody Early 2011 Battery Replacement - iFixit Repair Guide
Battery Life - The MacBook Pro Review (13 & 15-inch): 2011 Brings Sandy Bridge
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Apple MacBook Pro 13 (Early 2011) review: Apple MacBook Pro 13 (Early 2011) - CNET
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Apple MacBook Pro 13 inch A1278 (Early 2011) Laptop Battery Replacement - irelandbattery.com
Early 2011/Late 2011 MacBook Pro Battery Life Tests: EveryMac.com
2011 Macbook Pro 13" A1278 Battery Replacement - YouTube
Amazon.com: A1382 Battery for MacBook Pro 15 inch A1286 Early 2011 Late 2011 Mid 2012 New Replacement Laptop Battery (7200mAh 10.95V/78.84Wh 25 Months Warranty) : Electronics
MacBook Pro 13" Unibody Early 2011 Battery Replacement - iFixit Repair Guide
