Apple A1286 Battery for MacBook Pro 15" (2009-Early 2011)
Apple Macbook Pro Early-2011 15" 2.2GHz i7-2720QM *For Parts Only No B – MSU Surplus Store
Battery A1286 A1382 For Apple Macbook Pro 15" 2011-12, 661-5844 020-71 – PC Part Source Inc.
5200mAh A1382 battery For MacBook Pro 15'' A1286(Early 2011 Late 2011 Mid 2012) | eBay
iProPower A1382 Battery for Apple MacBook Pro A1286 15" inch Laptop [Only for Early 2011, Late 2011, Mid 2012 Version] High Capacity 7200mAh 10.95V/77.5Wh - Newegg.com
Battery Life - The MacBook Pro Review (13 & 15-inch): 2011 Brings Sandy Bridge