How To Calibrate a Mac Laptop's Power System - NewerTech
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MacBook Pro (Retina, 15-inch, Late 2013) - Technical Specifications - Apple Support
MacBook Pro 13" Retina Display Late 2013 Battery Replacement - iFixit Repair Guide
Apple MacBook Pro (15-inch, 2013) review: Apple's high-end laptop gets better battery life and a lower price - CNET
Explaining the battery life problems with the new MacBook Pros | Ars Technica
How To Calibrate a Mac Laptop's Power System - NewerTech
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MacBook Pro - Wikipedia
MacBook Pro 13" Retina Display Early 2013 Battery Replacement - iFixit Repair Guide
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Puredick This A1398 Battery for (Mid 2012 & Early 2013 - Please Confirm Your MacBook Year Before Buying) A1417 Battery only for Mid 2012 & Early 2013 15-inch Retina A1398 MacBook Pro : Electronics - Amazon.com
Battery Life & Thermals - The 2013 MacBook Air: Core i5-4250U vs. Core i7-4650U
A1582 A1502 Battery for Mac-Book Pro Battery 13'' Retina Late 2013, Mid 2014, Early 2015, A1493 A1582 A1502 Replacement Battery - Walmart.com
A1437 Battery for MacBook Pro 13" Retina A1425 Late 2012-2013