NOTE: This battery (A1321) only fits for Apple MacBook Pro 15 inch A1286 (Mid 2009, Mid 2010).
Battery Specifics: Li-Polymer 10.95V/77.5Wh/7200mA
Important to find MacBook model number: About this Mac --> More info... --> Serial number--> Check your MacBook's version on official website or Google with the SN. (Please check the MacBook Pro Model Number on the laptop back case and Make Sure Your Own Laptop Battery Model Before Place Order!)
Package list: Battery + S2 Stainless Steel Screwdriver Kits + helper stick + Manual
Warranty: Free 12-month warranty and customer service.

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*)