How to Replace a MacBook Battery？
Over time, every MacBook battery starts to lose its capacity. You may notice shorter battery life, charging issues, or even a swollen battery. When that happens, replacing your MacBook battery is often the best way to restore performance.
This guide walks you through the entire MacBook battery replacement process, with detailed steps, essential tools, and safety precautions. Whether you’re replacing a MacBook Air battery or a MacBook Pro battery, the following method can serve as a reference.
Preparation Before Replacing a MacBook Battery
1.Drain the Battery
Run down the battery until it’s nearly empty before removing it. This prevents leftover charge from causing safety hazards or environmental harm.
2.Back Up Your Data
DIY repairs carry some risk. Always back up important files in case something goes wrong during the replacement process.
3.Protect the Screen and Keyboard
Place a piece of paper or cloth (such as a kitchen towel) between the screen and keyboard to prevent scratches or damage if liquid or pressure is applied.
Pentalobe screwdriver and Torx screwdriver (usually included with the replacement battery kit)
Plastic spudger or pry tool (for removing adhesive)
Small brush and air blower (for cleaning dust)
Adhesive remover (e.g., 503 glue solvent, optional but helpful)
Steps to Remove the Old Battery
1.Unscrew the Bottom Case
Different screws vary in length, so keep them organized to avoid confusion during reassembly.
2.Open the Case and Clean Dust
Inside your MacBook, you’ll likely find dust buildup. Use a brush and air blower to clean it. Avoid touching metal parts with wet wipes to prevent short circuits.
3.Disconnect the Battery
Always disconnect the battery connector from the logic board before proceeding. This is crucial for safety.
4.Remove the Trackpad Cable
The cable running across the battery connects to the trackpad. Only disconnect the middle connector—leave the edge connectors untouched to reduce the risk of damage.
5.Detach the Speakers
On both sides of the battery are the speakers. Remove them carefully, keeping track of screw lengths.
6.Remove the Battery
This is usually the toughest part. MacBook batteries are glued in place with strong adhesive. Use the included spudger to pry it up carefully. If you have adhesive remover, the job becomes much easier. Be patient—avoid damaging nearby components.
7.Clean Remaining Adhesive
Once the battery is out, you’ll likely see adhesive residue. Don’t pull it forcefully—lift gently and roll it away for easier removal.
Installing the New MacBook Battery
1.Position the New Battery
Place the new battery in the correct position. Once aligned, peel off the protective film from the adhesive strips and press firmly to secure it.
2.Reconnect the Trackpad Cable
Carefully reattach the trackpad cable to ensure a secure connection.
3.Reinstall Screws and Speakers
Fasten all screws, reinstalling the speakers and securing the battery.
4.Reconnect the Battery Connector
The final step is reconnecting the battery cable to the logic board—opposite of the removal order.
Testing the New Battery
1.Before tightening the bottom case screws, close the cover lightly and power on your MacBook.
Ensure the device powers up normally
Test the trackpad functionality
Check that the keyboard responds correctly
Verify the battery percentage is displayed
2.Once everything works fine, shut down your MacBook, screw the case back on, and you’re done.
Important Notes
Warranty Concerns: DIY battery replacement may void your Apple warranty. It’s safer to attempt this once your warranty has expired.
Difficulty Level: Some MacBook Air and MacBook Pro models use stronger adhesive, making the process more challenging. If you’re not confident, consider using a professional MacBook repair service.
Recycle Old Batteries: Never throw old MacBook batteries in the trash. Take them to an authorized recycling center for safe disposal.
Conclusion
By following these steps, you can successfully perform a DIY MacBook battery replacement and restore your device’s battery life. While the process requires patience and care, it’s a cost-effective alternative to buying a new laptop.
We offer a wide range of MacBook battery replacement products with strong compatibility and stable quality, helping your device regain long-lasting battery life.