THIS IS AN ORIGINAL BATTERY REPLACEMENT

A1382 Laptop Battery for MacBook Pro 15" Unibody 2011 & Mid 2012
APPLE PART NUMBER: 661-04563 REPLACES 661-5844

COMPATIBILITY:
MacBook Pro: MacBook Pro (15-inch, Early 2011),
MacBook Pro (15-inch, Late 2011)
 MacBook Pro (15-inch, Mid 2012)