After 4.5 years of using Macbook Pro 15″ Retina 2015, my battery started to drain really fast. It doesn’t last more than 1.5 hour. I decided to buy a new battery from ifixit.com and replace it myself. When I saw the process of 74 steps to replace the battery on ifixit.com I was worried that I won’t be able to do it myself. While reading the comments I found out that there is a much easier method to replace the battery. That method is so simple that anyone can do it. The process requires the following
1- Thread, Dental Floss, or Fishing Line
2- iFixit Adhesive Remover
3- Angled Tweezers
All you have to do is apply the adhesive remover around each battery and move the laptop so the adhesive goes under the battery. Use the thread with angled tweezers to have the thread goes under the battery. Hold each side of the thread on each hand and go back and forth until you cut the glue between the aluminium chassis and the battery.
Watch this video to know exactly what I did