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Introduction

Use this guide to replace a faulty battery in your MacBook Air 13" Early 2017.

Note: If there is a thin plastic film on your replacement battery, do not attempt to remove it. It is glued on and protects the battery pack while it is inside the MacBook.

To minimize risk of damage, turn on your MacBook and allow the battery to fully discharge before starting this procedure. A charged lithium-ion battery can be very dangerous if accidentally punctured. If your battery looks puffy or swollen, take extra precautions.

    • Before proceeding, power down your MacBook. Close the display and lay it on a soft surface, top-side down.

    • Use a P5 Pentalobe driver to remove ten screws securing the lower case, of the following lengths:

    • Two 9 mm screws

    • Eight 2.6 mm screws

  1. Wedge your fingers between the display and the lower case and pull upward to pop the lower case off the Air.
    • Wedge your fingers between the display and the lower case and pull upward to pop the lower case off the Air.

    • Remove the lower case and set it aside.

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  3. To ensure that everything is de-energized and won't turn on while you're working, it is recommended that you disconnect the battery. Grab the clear plastic pull tab attached to the battery connector and pull it parallel to the board toward the front edge of the Air.
    • To ensure that everything is de-energized and won't turn on while you're working, it is recommended that you disconnect the battery.

    • Grab the clear plastic pull tab attached to the battery connector and pull it parallel to the board toward the front edge of the Air.

    • Do not lift upward on the connector as you disconnect it or you risk damage to the connector socket.

  4. Remove the following five screws securing the battery to the upper case:
    • Remove the following five screws securing the battery to the upper case:

    • Three 6.9 mm T5 Torx screws

    • Two 3.0 mm T5 Torx screws

  5. When handling the battery, avoid squeezing or touching the four exposed lithium polymer cells.
    • When handling the battery, avoid squeezing or touching the four exposed lithium polymer cells.

    • Lift the battery from its edge nearest the logic board and remove it from the upper case.

    • If you're installing a new battery, you should calibrate it after installation:

    • Charge it to 100%, and then keep charging it for at least 2 more hours. Then, 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%.

    • If you notice any unusual behavior or problems after installing your new battery, you may need to reset your MacBook's SMC.

Adam O'Camb

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