MacBook Pro 13" Retina Display Late 2012 Battery Replacement

Remove the following ten screws securing the lower case to the upper case:

Two 2.3 mm P5 Pentalobe screws

Eight 3.0 mm P5 Pentalobe screws

Wedge your fingers between the upper case and the lower case.

Gently pull the lower case away from the upper case.

Remove the lower case and set it aside.

Remove the plastic cover adhered to the battery contact board.

Remove the following screws securing the battery connector board to the logic board:

Two 2.8 mm T6 Torx screws

One 7.0 mm T6 Torx shouldered screw

Use tweezers to remove the small plastic cover located near the bottom right of the battery connector board.

Remove the wide head 6.4 mm T6 Torx screw securing the battery connector to the logic board assembly.

Carefully lift the battery connector board up off the logic board.

It is recommended to bend the battery cables just slightly, to keep the board suspended up above the logic board and out of the way.

Grasp the Interposer with tweezers.

Lift the Interposer off the logic board and remove it.

Use the flat end of a spudger to pry the right side of the I/O board data cable connector up off its socket on the I/O board.

Wedge the flat end of a spudger beneath the left side of the I/O board data cable connector.

Gently twist the spudger to disconnect the I/O board data cable connector from its socket on the logic board.

Lift and remove the I/O board data cable from the MacBook Pro.

Use the flat end of a spudger to pry the SSD cable connector up from its socket on the logic board.

Move the SSD cable connector out of the way.

Wedge the pointed end of a spudger beneath the right speaker cable connector.

Gently pry the right speaker cable connector up off from its socket on the logic board.

Use a T5 Torx driver to remove the following screws securing the right speaker to the upper case:

One black 6.8 mm screw

One silver 6.3 mm screw

One black 4.9 mm screw

Lift and remove the right speaker out of the upper case.

Use the flat end of a spudger to pry the headphone jack cable connector straight up off its socket on the logic board.

Wedge the tip of a spudger beneath the left speaker cable connector.

Gently pry the left speaker cable connector up off from its socket on the logic board.

Use a T5 Torx driver to remove the following screws securing the left speaker to the upper case:

One black 6.8 mm screw

One silver 6.3 mm screw

One black 4.9 mm screw

Lift and remove the left speaker out of the upper case.

Use your thumb or finger to bend the plastic spring bar on the SSD tray, freeing the two clips at the front side of the device.

While holding the spring bar depressed, tilt the SSD assembly up out of its cavity.

Remove the SSD assembly from the upper case.

Remove three 2.2 mm T5 Torx screws from each side of the battery (six screws total).

To protect your display, place a sheet of aluminum foil between the display and keyboard and leave it there while you work.

Now that your MacBook Pro is fully prepped, it's time to prep yourself.

Wear eye protection when handling and applying the adhesive remover. (Eye protection is included in your kit.)

Do not wear contact lenses without eye protection.

Protective gloves are also included in your kit. If you are concerned about skin irritation, put your gloves on now.

Pull off the black rubber stopper from your bottle of adhesive remover.

Use scissors to cut off the sealed tip of the applicator.

Apply a few drops of adhesive remover evenly under the edge of the leftmost battery cell.

Wait 2-3 minutes for the liquid adhesive remover to penetrate underneath the battery cell before you proceed to the next step.

Insert the flat edge of a spudger or plastic card underneath the leftmost battery cell.

Run your tool along the bottom perimeter of the battery cell and lift to begin separating the adhesive.

Insert the spudger along the left-hand side of the leftmost battery cell.

Run the spudger up along the left side of the leftmost battery cell.

Slightly pry the leftmost battery cell to release it from the adhesive.

Repeat the above steps to separate the adjacent battery cell from its adhesive:

Apply a few drops of liquid adhesive remover under the battery cell.

Wait 2-3 minutes for the adhesive remover to penetrate and soften the adhesive.

Carefully wedge a spudger or plastic card inwards, being careful to not damage the battery, and separate the battery cell from the adhesive securing it to your MacBook Pro.

Insert the flat end of a spudger underneath the larger leftmost battery cell.

Carefully wedge the spudger inwards, being careful to not damage the battery cells.

Pry the larger leftmost battery cell up off the upper case.

Grasp the battery cells and gently move (but do not remove) them from their recess in the upper case.

Leave the battery cells resting on top of the upper case as shown in the third picture.

Switch sides and repeat the above procedure for the two battery cells on the right-hand side of the MacBook Pro.

Remember to add a small amount of liquid adhesive remover under each battery cell, and wait 2-3 minutes for it to penetrate before prying up the cell.

Lift the battery as a whole up out of the upper case, and remove the battery.

With a little luck, you can slowly pull out each strip of adhesive with your fingers.

Otherwise, soak each section of adhesive with a bit of adhesive remover for 2-3 minutes, and then scrape it out with an opening pick or one of the other tools in your kit. This can take quite a bit of work, so be patient.

Mop up any remaining adhesive remover and give your MacBook Pro a few minutes to air dry.

Calibrate your newly installed battery: charge it to 100%, and keep charging it for at least 2 more hours. Unplug and use it normally to drain the battery. When you see the low battery warning, save your work, and keep your laptop on until it goes to sleep due to low battery. Wait at least 5 hours, then charge your laptop uninterrupted to 100%.