MacBook Pro 16″ A2485 Battery Replacement Guide – Apple Makes It Easy for Once!

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OVERVIEW:

In this guide, we walk you through the complete battery replacement process for the MacBook Pro 16-inch M1 Pro model (A2485). This tutorial also closely applies to the 14-inch M1 and M2 models, with only slight variations in battery size. The procedure covers every detail from removing the bottom case to disconnecting flex cables and swapping out the battery. We also demonstrate tips for safe battery adhesive removal and reassembly. This repair will restore your MacBook’s battery life while ensuring professional results.

See official Apple specs for this model

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REPAIR TIME & SKILL LEVEL:

This repair is estimated to take about 1.5 TO 2 HOURS to complete and is of INTERMEDIATE difficulty, requiring careful handling of delicate connectors and confident use of tools like screwdrivers and prying tools.

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STEPS:

Tools You Need

For this repair, you will need a Pentalobe screwdriver, a T3 and T5 Torx screwdriver, a suction cup to remove the bottom case, isopropyl alcohol to loosen the battery adhesive, a plastic pry tool to lift components safely, and tweezers if you’re lucky enough to have intact pull tabs on your battery.

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Remove Bottom Case

• Flip the MacBook Pro over and remove all eight Pentalobe screws securing the bottom case.
• Use a suction cup to gently lift and remove the bottom case without damaging it.
• Set the bottom case aside and proceed with internal disassembly.

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Disconnect Trackpad Flex Cable

• Using a T3 screwdriver, remove the two screws holding the trackpad flex cable retention bracket.
• Lift the bracket and use a plastic pry tool to unplug the trackpad flex cable.
• Carefully peel the flex cable back to expose the components below.

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Disconnect Battery Management Unit Cable

• Gently unplug the battery management unit flex cable.
• Peel the cable up from the adhesive securing it to the MacBook’s interior.
• Fully disconnect the cable so it can be transferred to the new battery later.

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Disconnect Jumper to Battery Daughter Board

• Use a T5 screwdriver to remove the screw securing the jumper from the logic board to the battery daughter board.
• Though optional, removing this is highly recommended to avoid any electrical issues during repair.
• Carefully lift and isolate the connector once removed.

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Remove Trackpad Screws

• With the T5 screwdriver, remove all screws holding the trackpad in place.
• This includes five screws on each side and three in the middle.
• Once screws are out, open the MacBook and slide the trackpad out gently.

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Soak Battery with Isopropyl Alcohol

• Apply isopropyl alcohol generously over the battery cells to loosen the adhesive.
• Let it sit while other components are removed or prepared for reinstallation.
• This softening step makes battery removal much easier and safer.

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Remove Battery Board Screws

• Return to the battery board and remove the two central T5 screws.
• These screws anchor the battery board in place and must be removed for battery extraction.
• Apply more alcohol on side cells if needed for adhesive loosening.

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Pry Out the Battery

• Use a flat plastic pry tool to gently lift each cell at a shallow angle.
• Avoid using metal tools or sharp angles to prevent punctures and potential fires.
• Carefully detach the battery, working around any areas where pull tabs failed.

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Understanding Pull Tab Locations

• Typical pull tab locations include the outer edges of each battery cell and the central area beneath the trackpad.
• If tabs remain intact, tweezers can be used to pull them out safely and easily.
• If tabs snap, continue using isopropyl alcohol and a plastic pry tool as demonstrated.

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Remove Old Battery

• Once loosened, lift the battery entirely out of the device.
• Set the old battery aside safely and prepare your replacement unit.
• Confirm your new battery matches the layout and design of the original.

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Install New Battery

• Peel off the adhesive strip covers on the new battery cells.
• Align the battery cells accurately with their designated slots in the chassis.
• Press each section into place starting from the top half of the MacBook.

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Secure Battery Board Screws

• Use T5 screwdriver to reinstall the two screws securing the battery board.
• Ensure the board is aligned correctly before tightening down.
• These screws lock the battery’s electrical connection into place.

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Reinstall Trackpad

• Reopen the MacBook and carefully set the trackpad back into its housing.
• Make sure it’s properly aligned before inserting screws.
• Reinstall all trackpad screws in the same order and position they were removed.

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Reconnect Battery Management Flex Cable

• Plug the first end of the flex cable into the new battery.
• Connect the other end into the logic board, ensuring a snug and proper fit.
• Avoid folding or forcing the cable, which could cause damage.

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Reconnect Trackpad Flex Cable

• Plug the trackpad flex cable back into its connector.
• Use the T3 screwdriver to reinstall the retention bracket securely over the flex cable.
• Confirm the cable is firmly connected and bracketed in place.

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Power Test Before Final Assembly

• Wipe off any internal dust to maintain a clean environment.
• Plug in the charger and power on the device before sealing the MacBook.
• Verify battery detection and charging functionality are working as expected.

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Reattach Bottom Case

• Once confirmed, place the bottom case back onto the MacBook.
• Remember: the top four Pentalobe screws are longer than the bottom four.
• Tighten all screws in the correct positions to complete the repair.

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CONCLUSION:

With the new battery installed and tested, your MacBook Pro is now fully restored to optimal battery performance. This guide covered every essential step using only the tools and parts mentioned in the video. From soaking the old adhesive to ensuring proper cable connections, we aimed to make each step as clear and repeatable as possible. Always take your time and handle components with care. If you’re not confident in performing this yourself, professional options are available.

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VIDEO TUTORIAL:

Looking for a more in-depth tutorial? Check out our complete teardown video for a detailed step-by-step walkthrough.

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MAIL-IN REPAIR SERVICE:

We offer professional screen replacement services. If you’re unsure about doing this repair yourself, send your device to our expert technicians for fast and reliable repair.

https://tekdep.com/device-repair/

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SHOP PARTS:

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SHOP TOOLS:

Using precision tools ensures a safe and efficient repair. Always use the right tools to prevent damage to delicate components. Quality tools make every repair smoother and safer.

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HAVE QUESTIONS?

We’re here to help! Contact us:

• Phone: 818-456-4479
• Email: [email protected]

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