Compatible Replacement Battery A1321 for MacBook Pro A1286 15 inch Early 2009 -Late 2010. Compatible With - Replace P/N: Apple MacBook Pro 15-inch A1321 A1286 (only for 2009 2010 Version) - MacBook Pro 15" A1286 (2009 Version), - MacBook Pro 15" MB985 /A, - MacBook Pro 15" MB985CH/A, - MacBook Pro 15" MB985J/A, - MacBook Pro 15" MB985LL/A, - MacBook Pro 15" MB985TA/A, - MacBook Pro 15" MB985X/A, - MacBook Pro 15" MB985ZP/A, - MacBook Pro 15" MB986 /A, - MacBook Pro 15" MB986CH/A, - MacBook Pro 15" MB986J/A, - MacBook Pro 15" MB986LL/A, - MacBook Pro 15" MB986TA/A, - MacBook Pro 15" MB986X/A, - MacBook Pro 15" MB986ZP/A, - MacBook Pro 15" MC118*/A, - MacBook Pro 15" MC118, - MacBook Pro 15" MC118CH/A, - MacBook Pro 15" MC118J/A, - MacBook Pro 15" MC118LL/A, - MacBook Pro 15" MC118TA/A, - MacBook Pro 15" MC118X/A, - MacBook Pro 15" Precision Aluminum Unibody (2009 Version), - MacBook Pro 15" MC118ZP/A. Specifications: - Battery Type: Replacement Battery. - Chemistry: Li-ion Polymer Voltage: 10.95V - Capacity: 73Wh 6600mAh. - Battery Condition: "0" cycle times with full capacity. - Weight: 16.9 ounce 480 g. 10.95V. 73Wh.