This Mac Book Pro A1398 is ever made power horse in speed performance. But when the battery grow old, you can't do anything else except to change it.
This article I will show you how to change the battery in this A1398 module Mac Book Pro.
First, you need buy a new battery which is specific for this A1398. I will show you how to buy it after.
Before you remove the battery, unplug the connector of the old battery.
The battery is glued to the notebook, so you need a pry bar to pry the edge and corner of the battery, and slowly you will remove the battery out. The new battery come with the pry bar and screw driver which is especially for this Mac Book Pro. You can't use general screw driver to open this Mac Book Pro because it's screw is very specific.
After you take the old battery out, clean the surface where battery is attached to. You can use Isopropyl alcohol. It will take you a little time and effort, but you will enjoy the great achievement after that.
Then you line the new battery in, and check the position is correct. Gently remove the plastic on the new battery, so the sticky glue will appear. Remove a piece by a piece so you can keep battery still in correct position.
After you put new battery on, plug the connector on. You can turn on the computer to try everything is work fine. Then you can put screw on the back cover, and it' done. You just changed the battery by yourself, saved plenty bucks for not going to repair shop. If you don't put screw on the back cover before you turn on the Mac Book to try, be gently while moving it. You can put the screw on the back cover before try to turn on it just for cautious.
How to buy a new battery specific for A1398 Mac Book Pro. I found the links below you can buy with 30 day money back warranty and one year quality related warranty.
This is the link I found on Ebay for a new original genuine battery
This is the link for all new battery specific for this Mac Book Pro on Ebay