MacBook Pro 15" Unibody 2.53 GHz Mid 2009 Battery Replacement
This guide has been found to be exceptionally cool by the iFixit staff.
- Author: Walter Galan
- Difficulty: Moderate
Replacing the battery on your MacBook Pro 15" Unibody 2.53 GHz requires a 1.5 mm flathead screwdriver to remove the five-point Pentalobe screws securing it to the upper case.
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Step 1 — Battery ¶
Three Pentalobe screws secure the battery to the upper case. They can be removed with this special driver.
If you don't have a Pentalobe driver, a 1.5 mm flathead screwdriver can be used in a pinch. Be sure the head of your flathead screwdriver fits snugly across two of the five "points" of the screw head before trying to break the screw free, as a loose fit will easily strip the screw head. If the head of your screwdriver fits too loosely, find a bigger bit and file it down until it fits snugly before proceeding.
You do not necessarily have to follow steps 3-7 to remove the battery in order to replace the hard drive. However, it is recommended to remove all power sources from electronics before working on them.
Step 2 ¶
Remove the two exposed five-point Pentalobe screws along the top edge of the battery.
Step 3 ¶
Use the tip of a spudger to bend back the finger of the "Warning: Do not remove the battery" sticker while you remove the five-point Pentalobe screw hidden underneath.
Step 4 ¶
Lift the battery by its plastic pull tab and slide it away from the long edge of the upper case.
Do not try to completely remove the battery just yet.
Step 5 ¶
Tilt the battery back enough to access the battery cable connector.
Pull the battery cable connector away from its socket on the logic board and remove the battery from the upper case.