SpecificationType: A1322 A1278 replacement Battery ,Battery type: Li-ion ; Voltage:10.95V ; Capacity: 63.5Wh. Packages includes: 1 pcs A1322 laptop battery with free screwdrivers easy replacement for Macbook Pro battery.100% New from Manufacturer ,Replacement A1322 battery for MacBook pro 13" adopt the original 1:1 design scheme, which perfectly matches your Macbook Pro mid 2012 laptop and is 100% compatible. A1278 Battery For Mmacbook Pro 13 inchThis A1322 A1278 replacement Laptop Battery works with MacBookPro 5.5/MacBook Pro 13 inch A1278 (Mid 2009); MacBookPro 7/MacBook Pro 13 inch A1278 (Mid 2010); MacBookPro 8.1/MacBook Pro 13 inch A1278 (Early 2011, Late 2011); MacBookPro 9.2/MacBook Pro 13 inch A1278 (Mid 2012) THIS BATTERY IS NOT FOR A1278 2008Please identify the model and year of your Mac and make sure they are listed on the title. Compatible P/N Replace with Macbook Pro mid 2012 MacBook pro MB990*/A / MB990CH/A / MB990