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The MacBook Pro (Retina, 13-inch, Early 2015) comes with a 60W MagSafe 2 Power Adapter and the MacBook Air (11 and 13-inch, Mid 2011) comes with a 45W MagSafe Power Adapter and according Find the right power adapter and cord for your Mac notebook "You can use a compatible higher wattage adapter without issue, but it won't make your computer charge faster or ...


There are several reasons a MagSafe power adapter will intermittently show the Green/Amber LED charge status. If it comes and goes it may indicate a short or break in the thin DC line cable. This usually happens at the power brick end where it runs into the adapter itself. You may not even see a cut in the plastic wire cover but if it looks badly creased it ...


Magsafe cables only carry voltages ranging from 14.5 to 20 volts, which is not nearly enough to be able to feel. For more information, see this Electrical Engineering Stack Exchange question. You would not be able to touch the actual conductors anyways as the metal "wire" that is visible in this picture does not carry any current, as it is just shielding ...


It isn't. Apple does not sell replacement parts and does not license the Magsafe to anyone.

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