MacBook Pro 15" Unibody Late 2008 and Early 2009 Battery Replacement - iFixit Repair Guide
Amazon.com: CSEXCEL New Laptop Replacement Battery for Mac Book Pro 13" A1322 A1278 (Mid 2009, Mid 2010, Early and Late 2011, Mid 2012 Version) Grade A Cell,10.95V 6000mah/65.5wh : Electronics
A1321 Battery for MacBook Pro 15" Unibody A1286 Mid 2009-2010
Amazon.com: iFixit Battery Compatible with MacBook Pro 13" Unibody (Mid 2009 to Mid 2012) - Repair Kit : Electronics
Amazon.com: Runpower A1322 Battery, Replacement Battery for MacBook Pro 13 inch A1278 Battery(Mid 2009 Mid 2010 Early 2011 Late 2011 Mid 2012) : Electronics
Amazon.com: BatPower A1331 Replacement Laptop Battery for Apple Late 2009 Mid 2010 MacBook 13.3 inch Unibody A1342 EMC 2350 A1342 EMC 2395 Battery MacBook Pro 13" A1342 Apple A1331 Battery 63.5Wh : Electronics
Genuine A1331 Battery For Apple Macbook Pro Unibody 13" A1342 (Late 2009 Mid 2010) 020-6582-
Amazon.com: Runpower A1322 Battery, Replacement Battery for MacBook Pro 13 inch A1278 Battery(Mid 2009 Mid 2010 Early 2011 Late 2011 Mid 2012) : Electronics
MacBook Air (Original/Late 2008/Mid 2009) Replacement Battery – A & M Digital Technologies, LLC
How to Replace the Battery in a 13-inch MacBook Late 2009-2010 (Updated) - YouTube