020-7134-a, 661-5844 Replacement Laptop Battery For Apple Macbook Pro 15 4 Mc721ll/a(early 2011 Version), Macbook Pro 15.4 Bto/cto(late 2011 Version),

Replace Battery Part Numbers:

APPLE:

020-7134-A, 661-5844, A1382

Compatible Laptop Models:

APPLE:

MacBook Pro 15 4″ MC721LL/A(Early 2011 Version), MacBook Pro 15.4″ BTO/CTO(Late 2011 Version), MacBook Pro 15.4″ BTO/CTO(Mid 2012 Version), MacBook Pro 15.4″ MC723LL/A(Early 2011 Version), MacBook Pro 15.4″ MD035LL/A(Early 2011 Version), MacBook Pro 15.4″ MD103LL/A(Mid 2012 Version), MacBook Pro 15.4″ MD104LL/A(Mid 2012 Version), MacBook Pro 15.4″ MD318LL/A(Late 2011 Version), MacBook Pro 15.4″ MD322LL/A(Late 2011 Version)