MacBook Pro 13″ A1502 Battery Replacement Guide (2015 Retina Model)

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OVERVIEW:

In today’s repair, we’re working on a 2015 MacBook Pro model A1502 that arrived with visible fire damage to the battery and connector board. The unit emitted a strong burnt smell upon unboxing, prompting immediate battery disconnection. Upon inspection, the battery had shorted and possibly ignited, cracking the PCB in the process. This guide will walk you through the careful replacement of the damaged battery, cleanup of fire residue, and reassembly of the MacBook. We’ll cover every step needed to get your machine safely running again.

See official Apple specs for this model

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REPAIR TIME & SKILL LEVEL:

This repair is estimated to take about 2 HOURS to complete and is of INTERMEDIATE difficulty, requiring basic knowledge of internal components and careful handling of delicate cables and adhesives.

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STEPS:

Tools You Need

For this repair, you will need a T5 Torx screwdriver, a plastic spudger for disconnecting cables and prying components, isopropyl alcohol to loosen adhesive residue, cotton swabs or paper towels for cleaning, and a flat-edged scraping tool to remove leftover adhesive. A pentalobe screwdriver is also required to reseal the bottom panel.

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Remove the Battery Connection Plate

• Use a T5 screwdriver to remove the two screws securing the retention plate.
• This plate covers the I/O board and trackpad flex cables.
• Removing this gives access to disconnect both cables safely.

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Disconnect the Trackpad Flex Cable

• Use a spudger to gently pop up the trackpad cable connector.
• Flip up the small tape cover and then lift the retention bar.
• Pull out the ribbon cable gently from its socket.

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Disconnect the I/O Board Flex and Speaker Cables

• Disconnect the I/O board flex cable.
• Disconnect the left and right speaker cables underneath and to the side of the I/O board.
• This ensures the battery can be removed cleanly.

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Remove the Left and Right Speakers

• Use a T5 screwdriver to remove three screws from each speaker.
• Note: One screw may be missing if previously tampered with.
• Gently pull the speakers out—one may be stuck under the misaligned battery.

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Remove the Battery Connector Screw

• Use the T5 screwdriver to remove the screw holding the battery connector board.
• This allows the battery to be safely pried out afterward.

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Carefully Pry Out the Battery Cells

• Due to fire risk, do not use isopropyl alcohol in this step.
• Use a flat-edge spudger to gently lift out the left and right battery cells.
• Then work on prying up the center battery cell, starting from the top if easier.

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Inspect Battery Damage

• Observe that the short likely happened near the battery connector.
• The PCB is visibly cracked, indicating intense heat and shorting.
• Avoid using poorly sourced or low-quality replacement batteries.

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Clean Fire Residue and Debris

• Use a paper towel and a small amount of isopropyl alcohol to clean the bottom case.
• Wipe down the logic board, being cautious of residue with conductive ions.
• Use Q-tips or cotton swabs for detailed cleaning around components.

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Remove Old Adhesive Strips

• Soak the adhesive areas with isopropyl alcohol to loosen the bond.
• Use a scraping tool to remove adhesive residue from the top case thoroughly.
• This preps the surface for installing the new battery.

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Reinstall the Left and Right Speakers

• Begin reassembly by screwing the speakers back into place.
• These act as alignment guides for installing the new battery.
• Only install one screw for each speaker initially for easy adjustments.

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Install the New Battery

• Peel off the protective cover from the new battery.
• Slide the battery under both speakers and align it precisely.
• Adjust positioning using a spudger before pressing it into place.

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Secure the Battery Connector and Speakers

• Use the T5 screwdriver to reinstall the screw on the battery connector board.
• Finish screwing down both speakers securely.
• Plug in the right speaker cable.

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Reconnect I/O Board and Trackpad Flex

• Plug the left speaker cable underneath the I/O board.
• Reconnect the I/O board cable.
• Slide in the trackpad ribbon cable, lower the retention bar, and reseal the tape flap.

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Reinstall the Battery Retention Plate

• Position the retention plate back over the connectors.
• Secure it with the two T5 screws.

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Test Charging and Power-On

• Connect the battery connector and place the protective sticker back down.
• Plug in the charging cable and check for an amber light.
• Open the MacBook and verify that it powers on and boots to the desktop.

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Reinstall Bottom Panel

• Use a pentalobe screwdriver to secure the screws along the bottom panel.
• Give the unit a final cleaning before concluding the repair.

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CONCLUSION:

This repair addressed a potentially dangerous battery failure in a 2015 MacBook Pro A1502. By carefully disconnecting components, cleaning up residue, and aligning the new battery with precision, we restored the laptop to full functionality. Proper tools and patience are key to a safe and successful repair. Make sure to always source high-quality parts to avoid issues like this in the future. With everything reassembled, the machine now powers up and charges as expected.

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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 battery 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. High-quality tools lead to smoother repairs and longer-lasting devices.

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HAVE QUESTIONS?

We’re here to help! Contact us:

• Phone: 818-456-4479
• Email: support@tekdep.com

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YOUR EXPERIENCE MATTERS: