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 A1278 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. Compatible Laptop ModelsThe 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).A1278 BATTERY IS NOT FOR A1278 2008Please identify the model and year of your Mac and make sure they are listed on the title.