Laptop Battery for Apple Macbook Pro 13"A1278 A1322 (Mid 2009, Mid 2010, Early 2011, Late 2011, Mid 2012) fits 661-5229, 020-6547-A, 661-5557, MB990*/A, MB990LL/A, MB990J/A, [10.95V 5800mAh/63.5Wh] Supper Capacity Laptop Battery for Apple MacBooks manufactured in Mid 2009, Mid 2010, Early 2011, Late 2011, Mid 2012 Battery type: Li-ion battery; Voltage: 10.95V; Capacity: 5800mAh/63.5Wh; Cells:6 Cell. Replace for Apple MacBook Pro 13-inch : MB990*/A / MB990CH/A / MB990J/A / MB990LL/A / MB990TA/A / MB990ZP/A / MB991*/A / MB991CH/A / MB991J/A / MB991LL/A / MB991TA/A / MB991ZP/A / MC700 / MC700B/A / MC700E/A / MC700J/A / MC700LL/A / MC700TA/A / MC700X/A / MC700ZP/A / MC724 / MC724B/A / MC724E/A / MC724J/A / MC724LL/A / MC724TA/A / MC724X/A / MC724ZP/A / MD313LL/A. Compatible Part Numbers:661-5229/ 661-5557/ 020-6547-A / 020-6765-A Battery Part No: A1322 / A1278 Superior Quality: Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and reliability. Certified Safe: CE, FCC and RoHS certified to ensure superior performance and safety. 12-months hassle-free warranty service. 24 x 7 E-mail customer service support! 30 days money return and 100% satisfaction guaranteed!Please check if this battery is compatible with your computer before purchasing. Part numbers of compatible batteries and Computers are listed as following.