Amazon.com: A1321 Laptop Battery Compatible with MacBook Pro 15 inch A1286 Battery (Mid 2009, Mid 2010 Version Only),Fit MB986LL/A MC373LL/A MC371LL/A MC372LL/A MB985LL/A MC118LL/A 10.95V 77.5Wh 6 Cell : Electronics
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
MacBook Pro 15" Unibody Mid 2010 Teardown - iFixit