Recently, when I was reading “three bodies”, there was a segment that attracted me: “it’s just wireless power supply. The power supply uses microwave or other forms of electromagnetic oscillation beam to transmit electric energy, and forms a power supply field in a certain space range. Any electrical equipment within this range can receive electric energy with skyline or electromagnetic resonance coil.” This is the ultimate imagination of science fiction writers for wireless charging. < / P > < p > back to reality, it coincides with the release of iphone12, which supports wireless charging, and adopts a new wireless charging design, with a maximum charging power of 15W. In addition, Apple also launched a MagSafe magnetic suction wireless charger at the press conference, which is also the first official mass-produced mobile phone wireless charger, marking the official entry into a new era of wireless charging for iPhone. And will this be an important step towards ultimate charging? Let’s have a look! < / P > < p > the first part is the unpacking part. The case of MagSafe magnetic suction wireless charger is still a typical Apple style design, with white tone and square shape. The front of the box has Apple logo, MagSafe charger and product appearance rendering, which is low-key and simple. < / P > < p > there is a paper slot on the right end of the cardboard to place the charging board, and the paper jam in the middle to fix the cable. The whole package is all paper-based, which can be said to be a good embodiment of Apple’s environmental protection action. < / P > < p > it’s no surprise to see Apple MagSafe charger for the first time. If you don’t know about its magnetic attraction and a series of changes in usage scenarios, it’s just a reduced Apple style wireless charging board. However, due to the huge annual shipment of the iPhone series and Apple’s deep mass base, once this new magnetic suction wireless charging application is applied to the flagship iPhone, it is bound to cause changes in user habits. < / P > < p > in appearance, the top surface of the charging board is made of plastic plate, with smooth surface, skin like feel and strong integration. As Apple products have always been excellent in dust and water proofing, we even have some expectations for the waterproof effect of MagSafe charger. If conditions permit, we will test it. < / P > < p > the bottom and edge are made of aluminum alloy shell, which is exquisite with a sense of science and technology, and the hand feeling is also very good. This kind of shell design is common in Apple products, which is a classic specialty. < / P > < p > this design can not help but remind me of the ring-shaped release poster that caused countless speculation. May it be that the major innovation of this time is the new wireless charging mode brought by MagSafe charger. < / P > < p > as we all know, apple likes to pay homage. MagSafe charger is similar to the design of Apple Park, the headquarters building of Apple spaceship. Xiaobian thinks this is also a kind of salute. After all, good design is eternal. < / P > < p > many friends are very concerned about the magnetic suction effect, so we specially made a vivid GIF map for you, so that you can understand it more intuitively. It can be seen that after the MagSafe charger is attached to the iPhone 12, the iPhone 12 is shaking with normal amplitude. The connection between the two is relatively stable. < / P > < p > some friends are curious about the adsorption effect of MagSafe charger on the previous iPhone. As shown in the picture, there is still suction on the iPhone 11, but it is not as stable as the iPhone 12. < / P > < p > many friends are very interested in which charger can achieve fast charging with MagSafe charger, so we specially test it. This test is very harsh on the environment, especially the temperature. Before each charger is tested, we use the ice sealed heat dissipation back clip to heat the charger and iPhone 12, and keep the battery power of the phone below 20%. Here are the test results. < p > < p > first of all, apple 20W, 30W, 61W, 96w chargers can give 18W of power; secondly, in addition to the recent 9v2.22a, the third-party charger can provide 18W power Besides the 20W charger, most of the chargers with PPS can also give 18W power; finally, the trigger mechanism must be low power, and the mobile phone must be very, very, very ice, especially to ensure that the internal components of the iPhone 12 are ice. < / P > < p > it can be seen that MagSafe is generally used to charge models before iPhone 12, and the power is generally around 5W, which is not affected by temperature and other factors. It should be noted that this is only the output power of the charger. The actual charging power for the mobile phone is still lower. Therefore, it is not recommended to use MagSafe to charge the models before the iPhone 12. Although it can be charged, it is not only slow, but also there is no magnetic coil on the mobile phone end, so the placement is not very stable. < / P > < p > use the apple MagSafe charger to charge the iPhone 12 without a case, and the input begins with a short climb handshake of 9V After about 20 minutes, the current is stable at about 1A; the whole process voltage fluctuation is small, and the middle current fluctuates periodically from 1 hour to 3 hours; after about 3 hours, the current gradually decreases until the end of charging, and the maximum power of wireless charging input terminal is 8.92V 2.02a 18.09w. < / P > < p > use Apple MagSafe charger to charge the iPhone 12 with 399 yuan of MagSafe silicone protective case for iPhone 12 12 pro, and the input terminal begins with a short climb handshake of 9V After about 15 minutes, the current is stable at about 1A; the whole voltage fluctuation is small, and the middle current fluctuates periodically from 1 hour to 3 hours; the current gradually decreases after about 3 hours until the end of charging, and the maximum power of wireless charging input terminal is 8.91v 1.97a 17.60w. < / P > < p > iPhone with apple MagSafe charger At the beginning of charging, the input terminal passes through the 9V gear of climbing handshake for a short time, and then it is about 1a. The voltage fluctuation range of the whole process is small, from 1 hour 35 minutes to 3 hours and 20 minutes, the intermediate current has periodic large fluctuation; after about 3 hours and 20 minutes, the current gradually decreases until the end of charging, and the maximum power of wireless charging input terminal is 8.91v 2.09a 18.70w. < / P > < p > judging by the maximum power during charging, whether the iPhone 12 is wearing a case or not, and the case with no magnetic suction function, has no significant impact on the maximum power of charging. < p > < p > the charging test data is made into a table, and the apple MagSafe charger is used to charge the iPhone 12 without case, with 42% charge in one hour, 63% charge in two hours, and the whole process takes about 3 hours and 21 minutes. < p > < p > use Apple MagSafe charger to charge the iPhone 12 with bonkers transparent shell (without magnetic suction function), with 39% charge in one hour, 60% charge in two hours, and about 4 hours and 20 minutes in the whole process. < / P > < p > after the test, it can be found that the whole charging time of iPhone 12 with MagSafe silicone protective case is about 50 minutes faster than that of ordinary protective case. Although neither of them is particularly fast, it is obviously faster to wear a protective case with magnetic suction function. < / P > < p > many readers are very concerned about the heat generated by the charger, so we add the temperature rise test. The test condition is to use MagSafe charger to charge the iPhone 12 without case for one hour in an incubator with a temperature of about 25 ℃. The temperature of the charger and mobile phone was tested at the beginning, 15 minutes, 30 minutes and 1 hour after charging. < / P > < p > in the past, we used to test the temperature of the charger with full load for one hour, but it was difficult to achieve it on apple MagSafe charger, so we simulated the user’s use condition for temperature test. Although the time is strictly controlled in the 25 ℃ incubator, the data is still not widely representative. However, as the temperature is an important factor affecting the charging, we still put the data in the article for your reference only. < / P > < p > the evaluation of apple MagSafe charger can be said to be full of twists and turns. At first, we followed the normal test process, and the article will be completed and presented to you. But some fans asked, what kind of charger to use with apple MagSafe? We have also tested various chargers and found that MagSafe’s power is “normal” almost only when it is combined with the official 20W charger, which does not seem to conform to the normal use logic. Then we think that temperature is a very important factor, so we find that the temperature restricts the performance of MagSafe. Then, when the temperature of MagSafe and mobile phone are extremely low, the power can “come up”. The simplest way is to throw the refrigerator, but it is not convenient to take photos and test, so the ice sealed back clip is used. This device is really easy to use. It is “iced” for a while before charging. Basically, most of the chargers tested can reach 18W. So after several twists and turns, this article can meet with you. < / P > < p > in appearance, the top surface of the charging board is made of plastic plate, with smooth surface, skin like feel and strong integration. The bottom and edge of the aluminum alloy shell design, delicate with a sense of technology, the feel is also very good. This kind of shell design is common in Apple products, which is a classic specialty. < / P > < p > compatibility: under extremely low temperature, most PD chargers above 18W can be used with MagSafe charger for wireless fast charging of iPhone 12. MagSafe charger can also be used for wireless charging of pre iPhone 12 models, but not fast charging. < / P > < p > in terms of performance, MagSafe charger is an excellent match for iPhone 12 series, and the peak power can reach more than 15W. However, due to the influence of temperature, power and other factors, the duration is not long, and the overall charging efficiency is not high. It’s not as good as you can imagine if you want to have a good experience. < / P > < p > in a word, apple MagSafe charger really brings users a brand-new experience – with the new charging method, the pleasant wireless charging UI, the highly technological appearance, and the smooth magnetic absorption process, which are all very “apple like” designs, it can no longer be charged through the interface, but it can not increase the power consumption and control the heat dissipation The existence of electrical appliances is becoming more and more difficult. In particular, the success of mage’s self charging will only be due to the success of its own charging. < / P > < p > if you have any expectations for the next generation of MagSafe chargers, the first thing is to improve the power, the second is to solve the problem of heat dissipation, and finally, if the price can also take care of our “employees”, it will be perfect. Privacy Policy

By ibmwl