Apple 85w magsafe 2 power adapter for ma cbook air this genuine apple 85w charger has the magsafe 2 adapter and the ma cbook pro computer connected via a magnetic link it will simply disconnect from your ma cbook pro. this will therefore minimize undue strain on both the magsafe power port and ma cbook pro power cable apple 85w mains adapter will charge your ma cbook air battery while turned on, turned off or in sleep mode. if you have no battery fitted then it will simply power your ma cbook air. when the magsafe connector is connected to your magsafe you your ma c air is charging and when this light turns green you have maximum charge. compatible with: ma cbook pro models featuring magsafe power port. 86w ma cbook magsafe power adapter specification: power: 85w input: 100-240v output:18.5v, 3.05a connector: magsafe 1 magnetic connects