NewerTech® : Batteries : NuPower® Batteries for MacBook® Pro 15-inch Unibody (2008/2009)
Amazon.com: iFixit Battery Compatible with MacBook Pro 13" Unibody (Mid 2009 to Mid 2012) : Electronics
Amazon.com: DMKAOLLK A1322 Battery for MacBook Pro 13 inch Mid 2012,Mid 2009 ,Mid 2010,Early 2011 MacBook Pro Battery,MacBook Pro Battery Replacement MacBook Pro A1278 Battery 10.95V 63.5Wh : Electronics
How to Replace the Battery in a 13-inch MacBook Pro (Mid 2010) MacBookPro7,1 - YouTube
MacBook Pro 15" Unibody (Late 2008-Early 2009) Battery
Amazon.com: DMKAOLLK A1321 A1286 Laptop Battery for MacBook Pro 15 Inch Mid 2009 Mid 2010, Replacement for MacBook Pro Battery A1321 A1286 MC371LL/A MC372LL/A MB985 MB986 MC118 77.5WH : Electronics
Amazon.com: iFixit Battery Compatible with MacBook Pro 15" Unibody (Mid 2009 /Mid 2010) : Electronics
NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Unibody Mid- 2009 and Mid-2010 Models
Batteries for MacBook Pro 15" Unibody 2009 - 2010 Models
Replacing the Battery in a MacBook Pro Unibody (2009-2012) in 5 Minutes! - YouTube