Compatible replacement Battery A1331 for Apple Macbook A1342 020-6809-A 020-6810-A A1331 MacBook A1342 15 inch Early 2009 -Late 2010. Compatible Part Numbers: - A1331 - A1342 - 661-5391 - 020-6580-A - 020-6582-A - 020-6809-A - 020-6810-A Compatibilities: - MacBook 13" - MacBook Unibody 13" - MacBook Pro 15" - MacBook Pro 17" - MacBook Pro Unibody 15" - MacBook Air - MacBook Air MC234LL/A 13.3-Inch - MacBook Air MC233LL/A 13.3-Inch - MacBook Pro 13.3-Inch - MacBook Pro MC375LL/A 13.3-Inch - MacBook Pro 15" series - MacBook Pro MB985LL/A 15.4-Inch - MacBook Pro MC118LL/A 15.4-Inch - MacBook Pro MC373LL/A 15.4-Inch - MacBook Pro MC372LL/A 15.4-Inch - MacBook Pro MB133LL/A 15.4-inch - MacBook Pro MB471LL/A 15.4-Inch - MacBook Pro MB134LL/A 15.4-inch - MacBook Pro MB470LL/A 15.4-Inch - MacBook Pro 17" series - MacBook Pro MC024LL/A 17-Inch Laptop - MacBook Pro MC226LL/A 17-Inch Laptop - MacBook Pro MB076LL/A 17-inch Laptop - MacBook Pro MB766LL/A 17-Inch Laptop - MacBook Pro MB604LL/A 17-Inch Laptop Specifications: - Battery Type:Lithium-ion (Li-ion ) - Voltage:10.95V - Capacity: 63.5WH - Color:Black - Battery (Brand New) - 1x battery - 2x screwdriver 10.95V 63.5Wh