iPhone12 ・ Magsafe Resurrection: What is the charging time and usability (2/5) | Bridge (Bridge) Technology & Startup Information

Magsafe hardware implementation on iPhone

(From the front continuation) The magnetic charging dock of the Apple Watch has a magnetic pack of about 1 inch of diameter at the tip of a cable of 1 meter, but the iPhone Magsafe has a large magnetic pack with a diameter of over 2 inches.。This difference is big personally.

I will not tell in detail, but I will say that MAGSAFE's round magnetic attachment is dissatisfied with SNS about how bad it is when it is attached to the iPhone case, or that it must be removed manually when lifting the iPhone.。I think these problems will be resolved by second -generation Magsafe accessories, but at present, it's a bit annoying.

The Apple Watch can be charged with a very common Apple 5w USB power adapter (an item included with the iPhone and Watch until recently).But Magsafe requires a new 20W USB-C wall adapter.Most computer USB-C ports do not operate at full speed, but can bring out the latest Apple laptop or, perhaps from other Macs.Most users may want to use a wall adapter, but the iPhone does not include Apple's $ 19 power cubes or $ 39 Magsafe.Using AUKEY's new Omnia mini in the photo above saves a few dollars and some physical space.Moreover, it provides the same 20W USB-C output as Apple adapter with a much smaller form factor.

Manufacturers such as Apple have mentioned numbers such as "15W", "18W", and "20W" as a method of measuring charging power, but what does this actually mean?

Simply put, the larger the number, the faster the peak battery charging speed.However, in reality, the charging system does not charge at the peak speed all the time, but reduces the speed to prevent damage to the battery.Since the size of the battery varies from device to device, the simplest is to display the time when the battery level is 0%to 100%.In addition, 2 hours charging is common in the current wired charging system (although not the most advanced).

Previously, there was a big difference in the speed of wireless charging and wired charging of the iPhone.Roughly speaking, the difference was 4 hours instead of 2 hours.However, it has been generally resolved in the iPhone 12 series.Starting with the 2017 iPhone 8 and iPhone X, Apple has started the support of Qi certification 5W wireless charging and its own “iPhone only” 7.5W wireless, which can only be used with genuine Apple accessories.

Nevertheless, wireless charging may take more than 4 hours depending on the model.Although the iPhone 12 supports 15W wireless charging at this time, there are some models that can be charged in about 2 hours as wired, using Magsafe.

To achieve that speed, you need a 20W wall adapter and magsafe on your iPhone 12.The magnet in the pack and the iPhone accurately match the position of the charging coil.This is a physically impossible technique for old iPhone.Technically, Magsafe is backward compatible with the old iPhone like the 8 and X above (Apple's online store also claims).

However, the packing magnet cannot be attached firmly on the back of such iPhone, which resulting in a lower charging speed than Qi.When I tested Magsafe on the iPhone 11 Pro, it took almost 4 hours to reach 30%to 100%.This is as slow as a charger other than Magsafe.(Continue to the next)

[Via VentureBeat] @Venturebeat

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