A1417 A1398 Laptop Battery for MacBook Pro 15 inch Retina A1398 (Mid 2012 Early 2013) MC975LL/A MC976LL/A ME665LL/A ME664LL/A MD831LL/A

[Music] hello and welcome to our instructional series of videos in this installment we're going to show you how to replace the battery in mid 2012 through early 2013 15 inch retina MacBook Pros this process involves the use of flammable substances and runs the risk of fire or personal injury if the battery you're removing gets damaged during removal for your safety be sure to both read all the information included with your kit and watch this video in its entirety before proceeding for this installation it's vital that we drain the battery until the computer shuts down to reduce risk of accidental ignition of the battery we've already drained the battery gathered our materials and are working on a soft static free work surface we're now ready to begin the first thing to do is place the cloth that came with your kit over the keyboard of your MacBook Pro and close the lid to help protect