Apple provides all kinds of USB-C chargers that correspond to the various fashions of MacBook, MacBook Air, and MacBook Professional it’s made that stay out there or that it provides replacements for. You would possibly assume as a result of these are so particular, like a 29W or 140W charger, that you could use precisely that wattage adapter for a given gadget.
Luckily, that’s not the case. Whereas true earlier than the widespread adoption of the USB-C plug sort by Apple and everyone else, USB-C makes it even simpler as there’s solely a single form of jack you may plug into any port. Energy administration is a elementary a part of USB typically; USB-C improved on it by permitting for energy to movement both route on a cable (and by adopting probably the most superior elements of the USB commerce group’s energy supply specification).
Totally different host units (like iPhones and MacBooks) and adapters have particular combos of energy they will supply. However in all circumstances, any USB-C adapter can present energy to any host gadget with a USB-C port. You possibly can’t go fallacious: no adapter will present extra energy than a bunch can settle for.
As an illustration, if you happen to plug a 10W adapter right into a MacBook Professional that may cost as much as 140W, it solely passes energy at 10W. Likewise, a 140W adapter gained’t blow up a most 29W chargeable gadget! In lots of circumstances, you should utilize a comparatively low-wattage adapter with a laptop computer and maintain the battery from depleting or cost it barely. It’s essential match full wattage to full wattage or increased to make sure a tool prices utterly, even whereas in use.
This Mac 911 article is in response to a query submitted by Macworld reader Buddy.
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