The 45-Watt MagSafe Power Adapter for MacBook Air features a magnetic DC
connector that ensures your power cable will disconnect if it
experiences undue strain and helps prevent fraying or weakening of the
cables over time. In addition, the magnetic DC helps guide the plug
into the system for a quick and secure connection.
When the connection is secure, an LED located at the head of the DC
connector will light; an amber light lets you know that your portable
is charging, while a green light tells you that you have a full charge.
An AC cord is provided with the adapter for maximum cord length, while
the AC wall adapter (also provided) gives users an even easier and more
compact way to travel.
Redesigned specifically for MacBook Air, the adapter is the perfect
traveling companion. It has a clever design which allows the DC cable
to be wound neatly around itself for easy cable storage.
This power adapter recharges the lithium polymer battery while the
system is off, on, or in sleep mode. It also powers the system if you
choose to operate without a battery.