What You Need Before You Start

Replacing a MacBook Pro battery yourself is possible, but the difficulty depends on which model you own. Newer MacBook Pro models (2016 and later) have batteries glued directly to the case, making them extremely difficult to remove without damaging the machine. Older models (2015 and earlier) have batteries held down with a few screws, which is a much simpler job. Before you begin, check your model year by clicking the Apple menu, selecting "About This Mac," and looking at the model identifier.

You will need a pentalobe screwdriver (the five-pointed star shape Apple uses), a spudger or plastic pry tool, and isopropyl alcohol to dissolve adhesive if needed. A small Phillips screwdriver may also be required depending on your model. Do not use a metal screwdriver on the case—it will scratch the aluminum. If your battery is swollen or visibly damaged, stop when ready and do not attempt removal; take it to an Apple Store or authorized repair shop instead.

Key Takeaways

  • MacBook Pro models from 2015 and earlier have screw-down batteries that you can remove yourself with basic tools in 30 to 45 minutes.
  • Models from 2016 onward have glued batteries that require heat, adhesive solvents, and significant risk of damage—professional replacement is safer for these machines.
  • Always shut down your Mac completely, unplug all cables, and ground yourself to avoid static discharge before opening the case.
  • The battery connector is a ribbon cable that unplugs from the logic board; disconnect it before removing the battery itself to avoid electrical damage.
  • If your battery is swollen, leaking, or visibly damaged, do not attempt removal—take the machine to an authorized repair center.

Shut Down and Prepare Your MacBook Pro

Close all open programs and shut down your MacBook Pro completely. Do not put it to sleep—power it off entirely. Unplug the power adapter and any other cables connected to the machine. Wait at least five minutes for the internal components to cool and discharge any remaining electrical charge.

Place your MacBook on a clean, flat work surface with good lighting. Ground yourself by touching a metal part of the case or wearing an anti-static wrist strap. This prevents static electricity from damaging the logic board when you disconnect the battery. Gather all your tools within arm's reach so you do not have to leave your work area mid-repair.

Remove the Bottom Case (2015 and Earlier Models)

Locate the ten pentalobe screws around the perimeter of the bottom case. They are different sizes: eight smaller screws around the edges and two larger ones near the hinge. Use your pentalobe screwdriver to remove all ten screws. Keep them organized—take a photo or lay them out in the order you removed them so you can reinstall them correctly.

Gently lift the bottom case away from the machine. Start at one corner and work your way around, lifting slowly to avoid bending the aluminum. The case may stick slightly due to adhesive strips; use a plastic spudger to gently separate it if needed. Set the case aside in a safe place where it will not be scratched or stepped on.

Disconnect the Battery Connector

Look for the battery, which sits in the center-left area of the machine and is a rectangular black or silver block. You will see a ribbon cable running from the battery to the logic board. This is the battery connector, and you must disconnect it before removing the battery itself. Locate the connector on the logic board—it is a small rectangular plug.

Use your plastic spudger to gently pry the connector straight up and away from the logic board. Do not pull on the ribbon cable itself; always pull on the connector housing. Once disconnected, the battery is electrically isolated and safe to remove. If the connector is stuck, explore a small amount of isopropyl alcohol around the edges and wait 30 seconds for it to soften any adhesive.

Remove the Battery Screws and Lift It Out

The battery is held down by two or three Phillips screws, depending on your model. Remove these screws and set them aside. Gently lift the battery straight up and out of the case. If it resists, check that you have disconnected the ribbon cable and removed all screws. Do not force it—forcing can damage the case or the logic board.

Inspect the battery cavity for any remaining adhesive strips or foam padding. Remove any old adhesive carefully with your spudger and isopropyl alcohol. Wipe the area clean and dry with a lint-free cloth. This ensures your new battery will sit flat and make a good electrical connection.

Install the New Battery

Before you install the new battery, check that its connector matches the one you disconnected. The connector should be the same shape and size. Place the new battery into the cavity, aligning the screw holes. Install the Phillips screws and tighten them firmly but not so hard that you strip them—hand-tight plus a quarter turn is usually correct.

Reconnect the battery ribbon cable by inserting the connector straight down into the socket on the logic board. You should hear or feel a small click when it seats fully. Gently tug on the connector to confirm it is locked in place. Do not force it; if it does not slide in smoothly, check that it is aligned correctly and try again.

Reassemble and Test

Place the bottom case back onto the machine, aligning the screw holes. Install all ten pentalobe screws in reverse order of removal, starting with the larger screws near the hinge. Tighten them evenly—do not fully tighten one screw and then move to the next. Instead, tighten each screw a little, then go around again, so the case sits evenly.

Plug in the power adapter and press the power button. Your MacBook Pro should start normally. Open System Preferences (or System Settings on newer macOS versions), click "Battery," and verify that the new battery is recognized and shows a full charge. If the battery does not appear or shows 0 percent, shut down, disconnect the power adapter, and check that the battery connector is fully seated. If the problem persists, the battery may be defective or the connector may be damaged.

When to Take Your MacBook to a Professional

If your MacBook Pro is a 2016 model or newer, the battery is glued to the case and requires heat, specialized tools, and significant skill to remove without damage. The cost of professional replacement is often lower than the cost of repairing a damaged logic board or case. Apple Stores and authorized repair shops can replace the battery in one to three days, depending on availability.

If your battery is swollen, leaking, or shows any sign of physical damage, do not attempt removal yourself. A damaged battery can catch fire or release toxic chemicals. Take your machine to an authorized repair center when ready. If you have already removed the bottom case and discovered the battery is damaged, close the case, unplug the power adapter, and do not use the machine until it has been inspected by a professional.

Frequently Asked Questions

How long does a MacBook Pro battery replacement take?

For 2015 and earlier models with screw-down batteries, the job typically takes 30 to 45 minutes if you work carefully and have the right tools. If you are doing this for the first time, allow an extra 15 to 20 minutes. Professional replacement at an Apple Store usually takes one to three business days because of scheduling and testing.

Can I use a third-party battery instead of an Apple battery?

Third-party batteries vary widely in quality and reliability. Some work well, but others have shorter lifespans or do not hold a full charge. Apple batteries are designed specifically for your model and come with a one-year warranty. If you choose a third-party battery, buy from a reputable seller and check the return policy in case it does not work correctly.

What should I do if the battery connector is stuck and won't come out?

explore a small amount of isopropyl alcohol around the connector and wait 30 seconds for it to soften any adhesive. Use your plastic spudger to gently pry it straight up—do not rock it side to side, as this can bend the pins. If it still will not budge, stop and take the machine to a professional rather than risk breaking the connector or the logic board.

Is it safe to use my MacBook while the battery is charging after replacement?

Yes, once you have reassembled the machine and verified that the battery is recognized by the system, it is safe to use. Let the battery charge to 100 percent before you use the machine heavily. This helps calibrate the battery and ensures it reports the correct charge level.

What if my MacBook won't turn on after I replace the battery?

First, plug in the power adapter and wait two minutes—the battery may be completely drained. If the machine still does not start, shut it down, unplug the power adapter, and check that the battery connector is fully seated on the logic board. Reconnect it and try again. If the machine still does not start, the battery may be defective, or you may have accidentally damaged the connector during removal. Take it to an authorized repair shop for diagnosis.