I have a MacBook air from 2013. Yesterday, the battery stopped working. It cannot hold a charge and the computer needs to be plugged in for it to function. As the laptop is called the "AIR," I carry it everywhere and use it as my primary computer. This computer has served me well, but I cannot carry around a charger everywhere I go because that defeats the whole purpose. Good to know that Apple really doesn't know what they are doing. I understand that I have an old computer, but the battery shouldn't just die one day.