But, if you're charging your iPhone directly via a cable most of the time, an 18W charger likely won't leave you waiting for much extra time. There are many great 18W chargers out there, so we've chosen some for this list.īottom line: If you want to ensure that you have the fastest charging speeds, no matter what on the iPhone 12, get a 20W charger - especially for MagSafe.
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So, while you may not be able to use MagSafe to its full potential, an 18W charger will likely yield similar results to a 20W when charging your iPhone 12 directly via the cable. This was using the 18W charger with a USB-C to Lightning cable directly plugged into the Lightning port on the iPhone 12. Our initial testing of charging an iPhone 12 using an 18W charger instead of a 20W charger shows that you can charge an iPhone 12 from 2% to 59% in about a half-hour. However, in our testing, an 18W charger had pretty similar results. The iPhone 12 models can only fast charge connected to a 20W charger. You'll only get these speeds using a 20W charger, any less, and MagSafe will charge much, much slower. Wireless charging is always a little less efficient than charging directly via the lightning port, but 15W charging through a wireless charger like MagSafe is fast. The MagSafe charger can charge your iPhone 12 with 15W of power if you pair it with a 20W USB-C charger. However, to use it to its full ability, you will want to pair it with a 20W charger. Note, however, that the 85W adapter will not charge a MacBook any faster than the 60W adapter.The MagSafe charger is a neat little Qi wireless charger that snaps nicely on the back of your iPhone 12. Though larger, the 85W unit does not (in some cases) get as hot as the 60W adapter, and might not generate some of the buzzing noises associated with the 60W unit.
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Incidentally, some MacBook owners have found that they prefer 85W MacBook Pro adapters to the standard 60W adapters included with their systems. If the MacBook Pro is sleeping or powered off, the 60W adapter will increase the available charge. In other words, while the 60W adapter will generally allow you to operate the MacBook Pro without draining the battery, it may not also increase the available the charge. However, the lower-power unit may not deliver enough power to MacBook Pros to offer simultaneous charging and operation.
The 60W adapter can also be used to some extent with both the MacBook Pro and MacBook. It will provide ample power to both the MacBook Pro and MacBook, and will not damage the latter despite a higher-than-necessary wattage.
The 85W adapter can be used inconsequentially with both models. So are the two adapters interchangeable? Yes, with a caveat. Both adapters use the same MagSafe connection point that will fit either model. A product specialist at Apple commented that although the packaging indicates use for the MacBook, the power supply would charge a MacBook slower and didn't recommend extended use."īy default, the MacBook Pro uses an 85W power adapter, while the MacBook uses a 60W power adapter. Their information didn't specify whether it was OK to use it or not OK to use it. I called Apple for a more definitive answer, but was unable to get one. The Apple store employee thought it was a bad idea to use the 85W with the MacBook, as the MacBook comes with a 60w adapter, even though Apple's packaging for the adapter indicated it was also for use with a MacBook. (I have a MacBook Pro and thought it would be good to have an adapter that we could both use). The packaging indicates that it is for use only with a MacBook Pro or MacBook. "I bought an extra 85W MagSafe Power adapter for my wife's MacBook. de Sequera recently inquired about the interchangability of MacBook and MacBook Pro power adapters.
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