Before starting, make sure your laptop is fully powered off and unplugged from any power source. Use the right tools—typically a screwdriver set included in the package—and work on a non-conductive surface to prevent static electricity damage.
This tutorial will guide you in detail how to remove the Apple A1280 / MacBook 13" A1278(EMC 2254) battery. You can watch the tutorial video below.
Step 2
The access door should now be raised enough to lift it up and out of the Unibody.
Step 3
Grab the white plastic tab and pull the battery up and out of the Unibody.
Be sure the access door release latch is vertical before proceeding!