NewerTech® : Batteries : NuPower® Battery for MacBook Pro 15" Unibody Mid-2009 and Mid-2010 Models
Apple A1309 7.3V Replacement Battery for Apple MacBook Pro - Black for sale online | eBay
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
13" inch MacBook Pro A1278 Mid 2010 Battery Replacement Repair - YouTube