MacBook Pro 13" Unibody Mid 2009 Battery Replacement

Featured Guide

Featured Guide

This guide has been found to be exceptionally cool by the iFixit staff.

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

Relevant Parts

Edit Step 1 Lower Case  ¶ 

Image 1/1: Remove the following 10 screws securing the lower case to the MacBook Pro 13" Unibody:

Edit Step 1 Lower Case  ¶ 

  • Remove the following 10 screws securing the lower case to the MacBook Pro 13" Unibody:

    • Seven 3 mm Phillips screws.

    • Three 13.5 mm Phillips screws.

Edit Step 2  ¶ 

Image 1/1: Slightly lift the lower case and push it toward the rear of the computer to free the mounting tabs.

Edit Step 2  ¶ 

  • Slightly lift the lower case and push it toward the rear of the computer to free the mounting tabs.

Edit Step 3 Battery  ¶ 

Image 1/1: Remove the following tri-wing screws securing the battery to the upper case:

Edit Step 3 Battery  ¶ 

  • Remove the following tri-wing screws securing the battery to the upper case:

    • One 5.5 mm tri-wing screw.

    • One 13.5 mm tri-wing screw.

Edit Step 4  ¶ 

Image 1/1: Use the flat end of a spudger to lift the battery connector up out of its socket on the logic board.

Edit Step 4  ¶ 

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

Edit Step 5  ¶ 

Image 1/1: Lift the battery out of the upper case.

Edit Step 5  ¶ 

  • Lift the battery out of the upper case.


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

Comments Comments are onturn off

My laptop wouldn't believe the battery was new until I reset the SMC as well ( ).

penguinofdeath, · Reply

once the battery is replaced with a new one, should it be drained? or charged full?

Elliot, · Reply

Apple is currently replacing battery for mid 2009 macbook pro for $129.95 no labor. If you've got a store nearby, not a bad option to get them to do it right and test to make sure battery, and not have to worry about the tiny screws. I've received two different reports however - 1 genius told me they could replace while I wait in about 20 minutes. Another told me I'd have to leave it over night.

John, · Reply

Perfect! I didn't want to wait for the Tri-wing screwdriver to ship, so I gave it a try by wedging a FH 1 in between two of the wings. It worked well to unscrew, but you must be very careful when resetting the screws that hold the battery. If you get them started with your finger (a little pressure with your thumb pushing straight down will get the job done) then you can do a few final turns with the FH 1. If you try to start resetting the screws with the off-center-FH1-workaround, you will strip the screw! Keep the screws centered and don't force anything.

Laurence Benson, · Reply

worked like a charm. my old battery had bulged and made it so that the track pad would not click :-( replacing the battery did the trick.

statprof, · Reply

My local Apple Store wants $179 plus tax to change this battery, AND I have to leave my laptop for "a couple of days." This is one store that clearly doesn't get it (Cherry Creak Mall, Denver). Thus, a DIY fix is mandatory... but, they won't sell just the battery.

channonholiday, · Reply

iFixit sells the battery you need for $119 (, and once you get it, doing the replacement shouldn't take more than 30 minutes, even if you've never done a repair like this before.

Taylor Arnicar,

This is really easy if you got right tools, just tested and in few minutes I changed my old battery with new :)

scapolupo, · Reply

Worked like a Champ ! Directions were perfect. Tools were right on. A few minutes later, my MacBook is back in biz. This is great stuff. Thanks !!

Rbwham, · Reply

I followed the instruction carefully and the battery works great. However, now my trackpad won't depress in all but the lower right corner. Anyone know how to fix this?

john, · Reply

I found out the battery tab screw holes are slightly misaligned by about 1/2 mm. This causes the battery to wedge in too tightly to the track pad which is directly above. Using a small drill bit I moved the holes slightly allowing the battery to move slightly toward the center of the laptop. This took the pressure off the track pad. Also I took the clear plastic covering off as well. It works great now.


The longer tri-wing bolt won't fit properly into the new battery I got through ifixit. The hole is too small and appears the wrong shape. It seems like this was the case with the old battery too, as there a crack in the corner near the hole where someone had to widen it. In the end I used the tip of a metal knitting needle (the sturdiest thing of the right size I had to hand) to widen the hole slightly, causing a similar crack. I guess since the bolt's thread is only at the tip where it enters the metal laptop casing this shouldn't affect how securely the battery is joined.

I had no joy with a 00 Phillips either, but this was probably due to the crappy quality of my socket set.

Dan Chambers, · Reply

I added this battery on my Macbook Pro 2009 edition. I still only get 2 hours of online video (youtube or netflix). is that normal? And the Maximum Capacity of my battery is 93% at arrival??

Any tips to increase the battery life of my laptop? I don't mind going back to mavericks or earlier versions..

Sundeep S, · Reply

A very step by step guide to replace battery on Macbook Pro's that are not covered under Apple Technical Service... and less expensive. Totally helpful... thanx iFixit for provide help and parts

Jorcorand, · Reply

Success! My mid 2009 MBPro is still going strong thanks to this battery change. HDD upgrade to SSD is due soon... Thanks iFixit.

tomvalkeapaa, · Reply

Yes, very helpful text.

Praska, · Reply

It looks like you need a Phillips #000 screwdriver for the 10 bottom screws. I tried the #00 and it's too big. Good thing I bought a 23 piece precision screwdriver set or else I would have been screwed.

scott523, · Reply

The 10 screws that hold tha bottom case take a #00 Phillips driver, if yours doesnt fit it's probably because it's cheaply made & not precise enough. The only thing that I needed a #000 driver for was the keyboard screws. They're so small they look like specks of dirt or sand. I stripped out 4 of them & now will need to grind the heads off with a Dremel/rotary tool. The other thing that sucks is iFixit doesn't have a tutorial for keyboard replacement!


Perfect man!Many thanks!:)

wertaerte, · Reply

Compare the short screws carefully before reinstalling them. The shouldered screws go in the holes on the front edge.

twisk, · Reply

thanks twisk, I wish i would have read your tip before I finished putting the bottom of my laptop back together. I managed to get all screws in somehow, but one was in fact too-tight.

BTW, big big thanks to the Author: Andrew Bookholt. Just used this guide and my trackpad now works again.


i too need a #000 for the bottom of the case -- i got the recommended screwdriver (#00) and unfortunately it's too big

plins718, · Reply

Before I started removing any screws I took a piece of paper and drew the bottom of the laptop and put a piece of double-sided tape in the spot where each screw goes. That way when I took out the screws, I could put them on the tape so I knew exactly which screw went in which spot. I did the same thing for dismantling the inside on another sheet of paper, then a third sheet for the screen after getting the front glass off.

mastover, · Reply

I use a similar technique: I print out the iFixit manual for the job, and Scotch-tape down the screws/brackets/cables I remove at each step next to the component descriptions. That way, when I'm reassembling, the bits are taped right next to the photo of where they came from.


That's exactly what I do for all my repairs! It's the best way to keep track of all of the parts ' original location and to make sure that you don't miss any parts during reassembly.


Great idea and one I use often

Thomas Overstreet,

The colours you used for these circles are indistinguishable for colour-blind people. Please consider using something like the palette suggested by visibone:

Eric Sorenson, · Reply

Squares, Circles, Triangles (you get the idea) would work as well to distinguish the different screws.


I'd use a Phillips #000 screwdriver also. The #00 can work, but if the screws are in really tight, it doesn't get far enough down into the screws to get purchase, so it will start to strip (and I agree that the screws are pretty soft). On mine, the screws for the fan were really tight, started to strip with #00, needed a #000 and quite a bit of pressure to get them to move.

jonathanmorgan, · Reply

I thought it took a 000 as well. However, I tried both and realized the 00 works best.

john, · Reply

Hi i was wondering if you can add 16gb to this model? or is 8 the maximum?

Igor, · Reply

The Mid 2010 MacBook Pro 13" does support 16 GB RAM, but it is very picky about the type of RAM. OWC sells a 16 GB kit (2x 8 GB). I think it's got to be 1066 (aka 1067) MHz RAM. A lot of 8 GB modules on the market now are faster than 1066 MHz, and reports I've read say people start getting kernel panics if they use the wrong RAM.

Some info here:

"1066 MHz PC3-8500 DDR3 SDRAM"

"*Originally, both the official and actual maximum RAM was 8 GB. However, as confirmed by site sponsor OWC, if running OS X 10.7.5 or higher, updated with the latest EFI, and equipped with proper specification memory modules, this model can support up to 16 GB of RAM."

Our Mid 2010 already had "the latest EFI" (i.e. Boot ROM version in System Profiler), so the reference to updating it may not be relevant.


I used a 00 that fit but the screws were very tight so I used a tiny paintbrush with some wd40 on it and put it around the edges of the screws. Worked like a charm

valentinedhdh, · Reply

I had the same problem. The #00 screwdriver worked for some of the screws but some others were too tight and I had to use a #000. Maybe it was because the cover had slightly bent because the battery inside had basically doubled its width, but I still found that the #000 was a much better fit for these screws. Even the ones that came out with the #00 came out much easier with the #000. I would suggest updating this guide to suggest using a #000.

tarriojuan, · Reply

Had no idea they were so expensive.

Franklin, · Reply

Phillips #00 is the right tool for all the steps (Except the 4 HD T6 screws). Maybe there is dirt in the notch.

Luis Soto, · Reply

There is any chance to use the Toshiba MQ01ABD 1 TB 2.5" Internal Hard Drive MQ01ABD100 , it has7200 rpm , shuold it work?

Luis, · Reply

Where can I buy 5.5 mm tri-wing screw and 13.5 mm tri-wing screw ?

gansodesoya, · Reply

I have the same question? Where can you buy new screws. Apple put in these rediculous tri-screws.... The short one went in crooked and jammed. I couldn't get the long one back in at all, not sure why, but it's not catching a single thread.

My 2nd question is, what the alternative if you can't get the screws back in (e.g. some kind of tape). With only one screw only half way in and jammed, the battery doesn't seem to be moving around, so I think I'm ok, at least for now.

Mike Mullally,

similar issue here, I'd like to buy these bolts new. and it would be even better to buy new ones but with a philips head, not a triwing head. please let us know. thanks.

Manuel Torres,

Still no answers on this?

jasperr4, · Reply

You can get the tri-wings from ifixit directly -

or get the whole kit (like I did - it's excellent) -

Damian Haslam, · Reply

i have a triwing y1 and it doesn't work with my battery it seems to be too big, the triwings sold on ifixit are the same when it is written y1 ?

Grazia Fiore,

Just dropping saw someone with same name. :)

mdtorresjr, · Reply

Mine does not have triwing screws.... They have 5 points but none of my torx stuff works? What is it? I have one of your sets of 20 or so pieces and nothing works.....

Chris Babcock, · Reply

pentalobe. its an apple specific driver to keep you out. The bottoms of the airs use this as well. You can fid one on eBay

ryan rochford,

Used a knife and a rubber band to unscrew these.

dovydas54, · Reply

Did everything correctly, but now the battery doesn't charge. Do I have to do something in particular to make it work now that's installed? Thanks

Olivier, · Reply

Everything was so easy but that is not the highlight of it all; the replacement parts are cheaper than buying it from a local store here in Taiwan or in The Philippines.

mdtorresjr, · Reply

Olivier, to answer your question, please read the 1st comment in the Guide section at the top. :)

aspeegle, · Reply

I have the same problem as Oliver. Replaced the battery, it Works, but don't charge. I don't see any comment on this page that answer his question.


I too encountered the same problem. After resetting the SMC (, it resolved the problem.

2CentsNoneTheRicher, · Reply

Replaced the battery without trouble. But now I turn on the computer and get a white screen. Any idea what I am missing?

Claire Hoelmer, · Reply

View Statistics:

Past 24 Hours: 215

Past 7 Days: 1,421

Past 30 Days: 6,040

All Time: 345,237