If you own a MacBook, then surely you will enjoy your laptop. Whether it's just a MacBook or MacBook Pro, you are unlikely to want to change his assistant to another device. But there are some things that trouble even the most fanatical "makovodov. For example, the well-MacBook Air, but my only laptop-type "is always with you" would like to work a little more time. The same can be said about the MacBook Pro 13, because you certainly want it to work longer on battery power. More. More! Let's see how this can be achieved without changing your laptop on a different model. I beg to love and favor, "smart" external battery HyperMac.