Battery MacBook Pro 15" Unibody Early 2011 till Mid-2012 + Tools - 80.19EUR - OWCshop
Original 7200 MAH A1382 A1286 battery https://www.amazon.com/dp/B0796NDQDD?m=AQB21QB59HD2I&ref_=v_sp_detail_page | Macbook, Macbook pro, Apple macbook pro
EBK New A1382 Battery for Mac book Pro 15 inch A1286 (only for Early 2011, Late 2011, Mid 2012), fit MC721LL/A MC723LL/A 661-5844 020-7134-A with free tools - Walmart.com
Recyclers disagree on impact of glued-in Retina MacBook Pro batteries | Ars Technica