MacBook Air Charger 45w vs 65w Can you use a 65W apple charger instead of the 45w charger that comes with the Macbook Air? How will this affect the machine.
Yes this is fine (assuming you refer to the 60W Magsafe) and this has been confirmed by Apple to be safe


  Although you should always use the proper wattage adapter for your Apple portable, you can use an adapter of a higher wattage without issue.