This battery (A1321) only fits for Apple MacBook Pro 15 inch A1286 (Mid 2009, Mid 2010).

Compatible with Mid 2009 2010 MacBook Pro 15" A1286 Battery Part Number:

A1321

Compatible with MacBook Pro 15" Aluminum Unibody Model Number:

MacBook Pro 15-inch Mid 2009 version

MacBookPro5,3 MacBookPro5,4 Aluminum Unibody A1286, MC118*/A, MB985*/A, MB986*/A or MC226*/A Series

MB985*/A MB985CH/A MB985J/A MB985LL/A MB985TA/A MB985X/A MB985ZP/A

MB986*/A MB986CH/A MB986J/A MB986LL/A MB986TA/A MB986X/A MB986ZP/A

MC118*/A MC118 MC118CH/A MC118J/A MC118LL/A MC118TA/A MC118X/A MC118ZP/A

MacBook Pro 15-inch Mid 2010 Version

MacBookPro6,2 Aluminum Unibody A1286, MC371*/A, MC372*/A or MC373*/A Series

MC371LL/A MC371*/A MC371B/A MC371E/A MC371J/A MC371LL/A MC371RS/A MC371TA/A MC371X/A MC371RS/A MC371ZP/A MC372LL/A

MC372*/A MC372B/A MC372E/A MC372J/A MC372LL/A MC372RS/A MC372TA/A MC372X/A MC372RS/A MC372ZP/A MC373LL/A

MC373*/A MC373B/A MC373E/A MC373J/A MC373LL/A MC373TA/A MC373X/A MC373ZP/A

MacBook Pro 15-inch A1286(EMC 2324*)

MacBook Pro 15-inch A1286(EMC 2325*)

MacBook Pro 15-inch A1286(EMC 2353*)