MacBook Unibody Model A1342 Battery Replacement

Don't pay Apple to replace your worn out battery. Do it yourself!

Edit Step 1 Lower Case  ¶ 

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Edit Step 1 Lower Case  ¶ 

  • Remove the eight 4 mm Phillips screws securing the lower case to the MacBook.

Edit Step 2  ¶ 

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Edit Step 2  ¶ 

  • The lower case is constructed of rubber-coated aluminum. Do not excessively bend the aluminum during removal, as any permanent deformation will cause tolerance issues after reassembly.

  • Slightly lift the lower case near the vent opening.

  • Continue running your fingers between the lower and upper cases until the upper case pops off its retaining clips.

  • The location of these three clips is shown in the third picture.

Edit Step 3 Battery  ¶ 

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Edit Step 3 Battery  ¶ 

  • Use the flat end of a spudger to lift the battery connector up out of its socket on the logic board.

  • It may be easier to use your fingernails to lift up on both sides of the connector.

Edit Step 4  ¶ 

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Edit Step 4  ¶ 

  • Remove two 5 mm Tri-Wing screws securing the battery to the upper case.

Edit Step 5  ¶ 

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Edit Step 5  ¶ 

  • Use the tip of a spudger to carefully peel back the finger of the warning label to reveal a hidden Tri-Wing screw.

  • Remove the 5 mm Tri-Wing screw securing the battery to the upper case.

Edit Step 6  ¶ 

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Edit Step 6  ¶ 

  • Remove three 3.1 mm Phillips screws securing the battery near the edge of the upper case.

  • When reinstalling the battery, be sure to install these three screws before proceeding to fasten the Tri-Wing screws.

Edit Step 7  ¶ 

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Edit Step 7  ¶ 

  • Use the battery's plastic pull tab to lift and remove the battery from the upper case.

To reassemble your device, follow these instructions in reverse order.

For more information, check out the MacBook Unibody Model A1342 device page.

Required Tools

Phillips #00 Screwdriver

$5.95 · 50+ In stock


$2.95 · 50+ In stock

Y1 Tri-wing Screwdriver

$7.95 · 50+ In stock

Recommended Tools

54 Bit Driver Kit

$24.95 · 50+ In stock

Magnetic Project Mat

$19.95 · 50+ In stock

Pro Tech Screwdriver Set

$59.95 · 50+ In stock

Anti-Static Project Tray

$4.95 · 50+ In stock

Comments Comments are onturn off

what size is the tri-wing screwdriver used in this guide(0,1,2,3,4,5?)

aknewhope, · Reply

Unfortunately the tri wing drivers in Ifixit say 5mm however most folks including myself are wondering what that converts to in places that sell them Y0, Y1, Y2, Y3, Y4, Y5. Then some places like Harbor Freight sells 100pc kits for $9.99 (US) and include #0,1,2,3,4 tri wing bits. It also includes phillips P0,1,2,3 bits. Here's the link

If you never saw this company and you like tools, this WILL be on you bookmark list for sure!


I bought a tri wing y1 from Wera, but it was way to big.... I guess I'll buy the ifixit bit set, but otherwise I would try y0.

--edit-- Looking at the photo's here of the tri-wing screws, it more looks like my macbook has different screws. Mine are black and as large as the other normal screws.

Looks like the 2010 version has y0 somehow.


I just replaced the battery on my late 2009 mac and thanks to this and all the other detailed guides it was actually quite simple (save for those cursed tri-wings). Don't feed apple with money you can spend on better things. A battery-removel isn't one of them.

Sebastian Koch, · Reply

For those that have questions about the size of the bit, every article starts with "Tools". The tri-wing is size Y1 as the guide says. 5mm is the length of the screw itself, not the size of the bit.

Just replaced a battery myself. The replacement battery (from an ebay seller) is supposed to be genuine, but was missing the "Warning, do not remove the battery" sticker and the "Do not throw in the trash" sticker, and the main sticker was glossy with air bubbles. Not sure if fake or not. But have been working great this first night.

This guide was spot on. Followed every step, and used the iFixit kit when doing the repair.

tech, · Reply

I just replaced the battery, using a battery and tools from iFixit, and the guide was perfect. Many thanks!

bobleigh, · Reply

If you cant find a tri-wing screwdriver, a very VERY small straight (2-sided) screwdriver will suffice.

jpbarbash, · Reply

I got the "Service Battery" warning after replacing my old "bloated" battery. Did I do something wrong during the process ('cause I did exactly the same as the guide) or is it the battery the faulty one (it worked just fine from my observation)? Or is it software related? Appreciate feedbacks... (^_^)

Mohd Zulothman Mustapha, · Reply

Thanks for the great guide. Taking my time it took only about 15 minutes beginning to end. . . a very simple procedure. Reviewing the instructions ahead of time I saw that I needed a tri-wing screwdriver, so I took a quick trip to Harbor Freight and purchased a electronics driver and bit kit. I saved my daughter a lot of money replacing the battery myself and I got some new tools in the bargain!

David Smith, · Reply

No Batteries Available in Power icon at top of the screen....?

I successfully replaced the battery two weeks ago. Today, I needed to change the trackpad due to it having a mind of its own...followed the instructions on iFixit step by step (removing the battery and the trackpad and then reassembling), but when I tried to start up the computer it would not boot except when hooked up to its power supply. The battery icon at the top of the screen, when I clicked on it, states No Batteries Available. (I reinstalled the old weak battery as a check and got the same message). Any ideas or solutions? Thanks for any help!

David Smith, · Reply

Update: I took the computer to an Apple Authorized Repair Center. They first diagnosed the problem as the incorrect battery being installed, and after further examination determined the logic board was malfunctioning. They wanted well over $350 to replace the board; I will take care of this at a later date for a lower price! Be sure to disconnect the battery cable carefully, using your fingernails or a nonconductive spudger...I believe that's where I went wrong with the disassembly.

David Smith,

Hey! Installed a new battery in my MacBook Late 2009! Works great! Thank you iFixit!

But: Be Careful with the battery connector - you have to peel it from one side , then the other side - otherwise you´ll damage it!

nm, · Reply

According to this page, the 8 screws are not identical.

Can anybody tell me where each kind of screw is supposed to go?

Gregoire, · Reply

The screws on the Late 2009 are identical. The blue lock compound might make tightening some require a little more effort.

svenaustx, · Reply

Can I replace it with a SATA 3 cable?

nm, · Reply

"Tri-Wing Screws"? I don't see a "Tri-Wing Screwdriver" listed in the "Tools" section.

barryjaylevine, · Reply

See here:

All tools required are included here:

Just did it myself ;)


5mm tri-wing screw??

Its hardly that big. It certainly requires a tri-wing screwdriver much smaller than a 5mm tri-wing screwdriver - "Y1" is probably 1mm. The smallest I had was a 2mm tri-wing screwdriver and it just worked ok.

I think this and step 5 should be edited with better information.

yy yy, · Reply

When I re-installed the battery, I inadvertently ripped the ribbon between the Trackad ribbon and the battery ribbon. Be Careful!

Joel Gilbert, · Reply

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