Battery - A1321 10.95V, 77.5Wh. Macbook pro 15" A1286 2009-2010 A1321 This. Genuine/Original Battery For Apple MacBook Pro 15" Unibody A1286 (Mid 2009 - Mid 2010) 6Months Warranty. It is important you match the model number of the laptop to the one underneath your MacBook and that you also match the year of manufacture.
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