It is true that Apple Notebooks come in both new as well as old models. If you have the new Pro 15-inch model you can take out and replace your Macbook Pro battery on your own. There are steps to follow for it, and as long as you are familiar with the procedure you will be able to finish the job in a matter of minutes.
In the event that you encounter problems or issues in using the Mac it is recommended that you talk to an authorized service company to do macbook battery replacement, particularly for the latest models that have built-in batteries. In the first place, you need to close the notebook and then disconnect all cords.
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Then, turn it over and look for the lever that locks your notebook. Lift it off, and push the tab for the battery. In a matter of seconds, you are able to remove the battery that was in place. For the installation of this new battery search for the battery compartment and it is here that you'll put the beveled edges of your battery. Then, gently push it down.
It is important to make sure the connector is well seated. Lift the locks up and make sure that the tabs are aligned with the corners. Then, press the door to reduce the lock. It is necessary to press the power button in order to power the device again. As you will see, it is simple to swap and install the new battery. It is important to purchase the correct battery to match the model you own.