Battery Life - The MacBook Pro Review (13 & 15-inch): 2011 Brings Sandy Bridge
NewerTech NuPower 85 Watt-Hour Replacement Battery for 15-inch MacBook Pro Unibody (2011 - 2012) - Macfixit Australia
How To Calibrate a Mac Laptop's Power System - NewerTech
How to Boot MacBook Pro Without a Battery (Older Models 2006 – 2011) | OSXDaily
MacBook Pro 15" Unibody Early 2011 Battery Replacement - iFixit Repair Guide
MacBook Pro 13" Unibody Early 2011 Battery Replacement - iFixit Repair Guide
MacBook Pro 13" Unibody Early 2011 Battery Replacement - iFixit Repair Guide
Apple A1382 Battery For MacBook Pro 15" A1286 (Early 2011-Mid 2012)
MacBook Pro 13" Unibody Early 2011 Battery Replacement - iFixit Repair Guide
Fixing a 2011 MacBook Pro booting to a Grey Screen - AMD Radeon Video Glitch | Jeff Geerling
Laptrix Laptop Battery Compatible for A1322 A1278 MacBook Pro 13 inch 13" Mid 2012, Late 2011,Early 2011,Mid 2010, Mid 2009 MB990LL/A MB991LL/A MC375LL/A MC374LL/A MD314LL/A MC724LL/A, black (AC 4710) - Buy Laptrix
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) : Amazon.ca: Electronics
WISTAR A1382 Battery for MacBook Pro 15 inch A1286 Early 2011 Late 2011 Mid 2012 : Amazon.in: Computers & Accessories
Battery for MacBook Pro 17'' A1297 Early 2011 to Late 2011 (Batt. No. A1383) | Mobile Parts
Replace your 2009-2012 MacBook Pro HD with an SSD
Replacing the Battery in a MacBook Pro Unibody (2009-2012) in 5 Minutes! - YouTube