New A1321 A1286 Laptop Battery for MacBook Pro 15" inch (Only for Mid 2009, Early/Late 2010) MB985LL/A MB986LL/A MC371LL/A MC372LL/A MC373LL/A MC118LL/A 020-6766-b 661-5476 661-5211-12 Months Warranty

you you ellone welcome to the o WC instructional series of videos in this installment we're going to replace the battery in a mid-2010 15-inch MacBook Pro when replacing the battery in this machine it's important that you calibrate the power management system in order to get the full use of your battery we include these instructions as well so be sure to watch all the way to the end of the video we've already gathered our materials shut down and unplug the MacBook Pro and are working on a soft static free surface we are now ready to begin the first step is to close the MacBook Pro and flip it over on the bottom there are a total of 10 Phillips screws to remove the three in the upper right are longer than the others so remove those first you can now remove the remaining seven screws which are all the same size once you've removed all the screws you can lift the bottom cover up and off th