Do not think you need an engineering degree to understand how to use MacBook power adapter. Many people have trouble figuring out how to use the power adapter at first. However, there are a few simple things to remember when using the adapter.
First, you will likely see the adapter as a white brick. That is only part of its function. The adapter has two sides to it. You need to understand both sides to know how to use MacBook power adapter. One side connects to the outlet while the other side connects to the computer. When looking from the top down on the adapter you may notice that one corner seems to have a cutout on it. This is the side where the outlet meets the adapter. When you look on the side of this particular adapter area, you will see two prongs folded down into the adapter. If you flip those up you have the ability to plug the adapter directly into the wall, if you live in North America.
Second, you can change the adapter to accommodate an extension cord or another country’s electrical plug. This part often confuses those that want to know how to use MacBook power adapter. The area that appears to be a cutout is actually an interchangeable part that allows you to use an extension cord or the adapter for another country’s electrical supply. To change it, you gently pull the plug adapter off of the main body of the power adapter. It should come off with gentle force, but do not use too much force. Once you have the other plug off, you can take the power cord extension or the adapter for another country’s electrical supply and put it back on where you just took the old one off.
Once you have the adapter in place, the final step in learning how to use MacBook power adapter is to plug the connector to the computer. You will likely have to remove the protective cover on the end during the first use. All you need to do is to push the magnetic connector into the appropriate slot on the side of your MacBook. Once everything snaps into place, you can plug in your power cord. If everything is ready to go, you will see an LED light appear on top of the connector cord light up. An orange light indicates it is charging while a green light indicates the battery is fully charged.