Apple A1331 Battery for A1342 MacBook Unibody 13-inch (Late 2009 / Mid 2010)

A1331 Battery for Apple MacBook Unibody 13″ A1342 Late 2009 / Mid 2010 Apple A1331 battery is a replacement internal battery designed for MacBook Unibody 13-inch models A1342 (Late 2009 and Mid 2010). It is built with high grade lithium-polymer cells to deliver stable voltage, efficient charging, and consistent performance for everyday computing such as office work, browsing, and media use. This battery matches OEM specifications to ensure safe installation, reliable operation, and long cycle life. It is compatible with MacBook6,1 and MacBook7,1 models and replaces common Apple part numbers including A1331, 661-5391, 661-5585, 020-6580-A, 020-6582-A, 020-6810-A and 020-6809-A. It is suitable for users replacing worn out or faulty batteries in MacBook A1342 units.