Specifications:Model:A1382; Voltage:10.95V;Capacity:77.5Wh;Cell:3cells;100% brand new from manufacture. Grade A cells ensure fast charges and low power consumption. Compatible Part Number:A1382 020-7134-A 661-5211 661-5476 661-5844. Compatible Laptop Models:for macbook pro 15 inch A1286 ealy 2011 late 2011 mid 2012 MC721LL/A, MC723LL/A, MD035LL/A, MD318LL/A, MD322LL/A, MD103LL/A, MD104LL/A, BTO/CTO. Multiple Safety Protections: Our batteries feature multiple protections including Overcharge and Overdischarge Circuit Protection, Over-temperature and Short-circuit Protection, Our batteries are assembled with high-quality materials and boards to ensure fast charging and up to 500 charge cycles over the life of the battery Support:Supported with 30 days Refund and 12 months Replacement.24h Email support.The Futurebatt brand provides friendly customer service.We are committed to providing our customers with the best possible service.