Tested: The truth behind the MacBook Pro's 'terrible' battery life
Battery Life - The MacBook Pro Review (13 & 15-inch): 2011 Brings Sandy Bridge
MacBook Pro 15 inch swollen battery - Top Tek System
MacBook Pro 15" Unibody (Early 2011-Mid 2012) Battery - iFixit
Damaged 15-Inch 2015 MacBook Pro Demonstrates Why Apple Initiated Battery Recall Program - MacRumors
EBK New A1382 Battery for Mac book Pro 15 inch A1286 (only for Early 2011, Late 2011, Mid 2012), fit MC721LL/A MC723LL/A 661-5844 020-7134-A with free tools - Walmart.com
Apple Offers Free Battery Replacement for 2016-17 MacBook Pros | PCMag
Potential battery fires force Apple to recall 2015 15-inch MacBook Pros | ZDNet