The Apple 85W MagSafe Power Adapter is important for powering your Apple Laptop and to charge its battery. When you look at this MacBook Charger it is clear that Apple use resources to design something as simple as a power-supply. The design thinking is mainly noticed in the actual power-plug called: MagSafe.
What is MagSafe?
MagSafe is the name of the special type of magnetic power plug Apple uses on their macbook chargers. The magnets makes it easy to plug-in the power cable and hold it firmly to the computer. One of the best features is that if you are so unlucky to trip over the cable, it will detach from the computer without taking the entire computer with it. Potentially saving you from an expensive repair…
The plug itself have a small light that indicate if your laptop is charging or fully charged. Orange when charging, green when fully charged.
The Apple 85W MagSafe Power Adapter is the most powerful one Apple have. It is designed to power the MacBook Pros. Although it can be used with all portable Intel Macs if you want. You also have smaller versions of this macbook charger. 60 Watt for the MacBook and 13 Inch MacBook Pro and a 45 Watt charger for the MacBook Air. Where the 85 Watt is biggest and 45 Watt smallest in size.
MagSafe to MagSafe 2 Converter
MagSafe 2 was introduced when Apple released the retina MacBook Pro in 2012. Due to its smaller size they had to shrink the power plug. They made an adapter so that you can use your old charger if you wish. Its available on Amazon.com
Is A Third Party Charger Safe?
Using third party stuff is always a gamble. It could work alright but the next day fry your entire computer if you are unlucky. If your computer is still within warranty I would buy the original charger. A lot of the people we hear about that have batteries that explode and whatnot have in some cases used third party adapters. I wouldn’t gamble with safety, but again. A third party one could work just fine. Its your choice.