Batterymon Replacement A1321 Battery for MacBook Pro 15 inch A1286 (for Mid 2009 Mid 2010 Version) 661-5211, 661-5476, 020-6766-B, MC118LL/A, MC373LL/A, MB986, MB985 Notebook10.95V 77.5Wh Battery Type: Li-ion Polymer  Voltage: 10.95V  Capacity: 77.5Wh 100% Brand New from Manufacturer. Package includes 2 screwdrivers. Grade A cells. Up to 500 recharge cycles over the life of the battery. Replacement For: MacBook Pro 15'' A1321 A1286 (only for Mid 2009 2010 Version) Fit P/N: 661-5211, 661-5476, 020-6380-A, 020-6766-B, MB986J/A, MC118, MB985, MB986 MC371LL/A MC371RS/A MC371TA/A MC371X/A MC371RS/A MC371ZP/A MC372LL/A MC372B/A MC372E/A MC372J/A MC372LL/A MC372RS/A MC372TA/A MC372X/A MC372RS/A MC372ZP/A MC373LL/A MB985LL/A MB985TA/A MB985X/A MB985ZP/A MB986CH/A MB986J/A MB986LL/A MB986TA/A MB986X/A MB986ZP/A