SiKER New Laptop Battery for MacBook Pro 15" inch A1321 (Only for Mid 2009, Early/Late 2010) fits MC118LL/A MC373LL/A MB986LL/A [Li-ion 10.95V,73Wh ] Battery Type: Li-Polymer; Voltage: 10.95V; Capacity: 73Wh ; 6 Cell 100% New from Manufacturer, High Performance A1321Replacement Battery Overcharger and Discharger Circuit Protection, CE-/FCC-/RoHS-Certified for safety Package included:1* A1321 battery + 4* Screwdrivers Features 100% Brand Replacement New battery , with 1 year warranty