This battery A1494 is NOT for MacBook Pro 15\" Retina A1398 Mid 2012 and Early 2013 version!!!Please check the MacBook Pro 15\" Retina Model Number on the laptop back case!!!Please Make Sure Your Own Laptop Battery Model Before Place Order!!!Compatible MacBook Pro 15\" Retina Battery Part Number:Apple A1494 A1398 ME293 or ME294Compatible MacBook Pro 15\" Retina Model Number:Macbook Pro 15\" Retina Display ME293 (Late 2013)MacBook Pro 15\" Retina Display Late 20132.0 GHz (IG, Late 2013), 2.3 GHz (DG, Late 2013), 2.3 GHz (IG, Late 2013), 2.6 GHz (DG, Late 2013), 2.6 GHz (IG, Late 2013)MacBook Pro 15\" Retina Display ME294 (Mid 2014)2.2 GHz (IG, Mid 2014), 2.5 GHz (DG, Mid 2014), 2.5 GHz (IG, Mid 2014), 2.8 GHz (DG, Mid 2014), 2.8 GHz (IG, Mid 2014)MacBook Pro 15\" Retina A1398 ME293 ME294 MGXA2 MGXC2.