If you’ve got an original MacBook Air, you know that it’s getting up there in age. Now’s a good time to think of taking steps to extend its life. One of the first things to go in many laptops is the battery, and the MacBook Air is no exception. Hi, I’m MJ with iFixit, and today I’m going to show you how to replace the battery in the original MacBook Air. This video is a great overview of the process, but of course, as always, you’ll want to follow the step-by-step instructions in the repair guide on our site when you replace your battery.