Powerku&reg; Laptop Battery for Apple A1286 (Only for Core I7 Early 2011 Late 2011 Mid 2012) Li-Polymer Battery A1382 for Macbook Pro 15" 15.4-inch MC721 MC723 MD318 MD322 661-5476 661-5211 10.95v 73wh A-Grade Li-polymer cell at full capacity health All batteries are tested in the computer and left in there to confirm they will hold a charge over time MSDS/ROHS/UN38.3 Certified and all batteries have been drop tested 24 x 7 email support, weekday phone support during normal business hours Powerku has 10 years of industry experience and offer exception service to our customers.