The MagSafe 2 45W Power Adapter features a magnetic DC connector, so if someone trips over it, the cord will detach without damage and your MacBook Pro stays safe. It also helps prevent cable fraying or weakening over time. Additionally, magnetic DC helps guide the plug into the system for a fast and secure connection.
When the connection is secure, the LED indicator located on the head of the DC connector lights up; The amber light lets you know that the notebook is charging, while the green light tells you that you have a full charge. An AC cord is provided with the adapter for maximum cord length, while a wall AC adapter (also included) gives you an easier and more compact way to travel.
Designed to be the perfect travel companion, the adapter features a clever design that allows the DC cable to wrap neatly around itself for easy cable storage.
This power adapter recharges the lithium polymer battery while the system is turned off, on, or in sleep mode. It also powers the system if you choose to work without a battery.