The battery in a MacBook, whether it's a MacBook Pro or Air, can be replaced with a new model and many more years use can be had. They are not designed to be replaceable by members of the public, which makes some people think that they are not replaceable at all. The issue comes when it is time to replace the battery. There is nothing that anybody can do to prevent that. But, the battery life will get worse over time. It's normal for MacBook Air users to get 12 hours on a single charge, and MacBook Pro users should get several hours, even if the laptop is a few years old.
The battery life of an Apple MacBook is something that PC laptop users dream about. 13-inch MacBook Air (2013 – 2015) Bigger Flash Drive: Yes Max Capacity: 512GB