MacBook Pro 15" A1321 Battery for Model A1286 (2009-Early 2011)
MacBook Pro 15" Unibody (Mid 2009-Mid 2010) Battery - iFixit Store
NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Unibody Mid- 2009 and Mid-2010 Models
Amazon.com: HUSAN New A1321 Laptop Battery Compatible for MacBook Pro 15 inch A1286 (Only for 2009 2010 Version),fit MB985 MB986J/A MB986 MC118 020-6380-A 020-6766-B : Electronics
Amazon.com: A1321 Battery for Apple MacBook Pro 15" inch A1286 (Only for Mid 2009, Early/Late 2010), fits MC118LL/A MC373LL/A MB986LL/A Series Notebook : Electronics