Soon after my Macbook Air's "Service Battery" warning came on, the trackpad was acting strangely by double clicking when I was just moving over items - VERY frustrating! I read somewhere that the battery is located right under the trackpad and if the battery expands over time, will cause problems with the trackpad.
So, it was either a trip to the Genius Bar one hour away or buying a new Macbook. Then I came across this seemingly easy repair guide on iFixit. The step-by-step instructions here were very clear, giving me plenty of DIY confidence and oh, by the way, here is the part and the tools you'll need. So, I placed the order and the package arrived via USPS Priority in just three days.
The repair was extremely easy and took only about 20 minutes. After printing the instructions, it was just a matter following the steps, carefully pre-reading through each one before proceeding. I used an ice cube tray to organize the extremely small screws, which were easily manipulated with the provided magnetic drivers. There was a lot of dust in there, so blew it out lightly with some compressed air. It's just amazing to me how everything is laid out in this thin space.
The old battery came out easily and was replaced with the new one in a matter of seconds. From there, I just followed the steps backward to put it all back together.
Be ready for the rewarding feeling of accomplishment that follows. If I would have known it was this easy, I would have had my 14 year old son tackle this for the educational value alone.
The ice cube tray is a great idea for organizing the screws that I found from someone else's iFixit story. Mark the tray cells with small tags if necessary.
Also a note when reinstalling the screws on the bottom cover. Since it is contoured and the holes are positioned on a curved edge, just be sure to insert the screws at a right angle to the curve. Go lightly and of coarse, don't force anything.