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Is it necessary to buy a 30W charger if you are underfed at 18W? iPhone 11 Pro Max charging Evaluation

via:充电头网     time:2019/10/2 8:00:54     readed:2203


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Prior to this, Xiaobian brought you a comparative evaluation of iPhone 11 charging, and also tested the compatibility of up to 56 PD chargers on iPhone 11 Pro Max, one of which concluded that the maximum power of iPhone 11 Pro Max could reach 22W.AppleWith the 18WPD charging package for the iPhonePro model for the first time, it is possible to``not feed enough'' it, do we need to buy a higher power charger for it?

Today, we will bring you the most powerful version of the iPhone 11 Pro Max with a 0% to 100% charge comparison test. Let's see if it's necessary to buy a more powerful charger for it.

As before, the editor will use the Apple 5W suit, the Apple 18W PD quick charging kit (iPhone 11 Pro Max standard), and the Apple 30W PD charger PD set to charge the iPhone 11 Pro Max 0% to 100%.

Testing shows that the iPhone doesn't stop charging when it displays 100% power. It continues to charge with low power and trickle current until it is fully charged. This testcellphoneThe whole charging standard is: full discharge automatic shutdown, recording the input power of mobile phone to below 0.1W when charging, not the 0%-100% of the power in the mobile phone system.

Not much nonsense, go straight ahead, first of all, the charging process of Apple 5W suit.

Apple 5W charging set is used to charge it, and the power monitoring record data of the upper computer of ChargerLAB Power-Z KM001 tester are made as above. From the power change chart, we can see that the charging power performance is very stable, nearly 3 hours and 25 minutes are charged with about 5W power, no obvious fluctuation, charging 3 hours and 25 minutes into the constant voltage stage, the power gradually decreases, the whole process takes 4 hours and 18 minutes.

ChargerLAB Power-Z KM001C tester is monitored by PC, and the recorded data are drawn as the table above.

It can be seen from the power change chart that the charging power rose to 17.79W in a short time, and the power was maintained for nearly 44 minutes. After 44 minutes of charging, the power began to decline, and the power dropped to about 0W in 54 minutes, which lasted nearly 5 minutes. Then the power returned to the normal level. The maximum power of the charging test was 17.91W, which took 2 hours and 17 minutes.

The measured charging power is much larger than that of 5W charging pack, and the whole time consumption is reduced by nearly half. It is still very fast to charge the iPhone 11 Pro Max with a charger that supports fast charging of PDs.

Next, Apple 30W PD charger, which has more power than the original charger, is used to charge it, and the upper computer of ChargerLAB Power-Z KM001C tester is used to monitor and record the data.

As can be seen from the figure above, when 0% of the power is off, it shakes hands with 5V Apple 2.4A charging mode. After about 1 minute of automatic boot-up, it is converted to USB PD fast charging for charging, and then its power reaches 22.57W. At this time, the charging power platform maintains about 22W for 27 minutes; the next stable power platform is 18W, which appears in about 31 minutes of charging, and lasts nearly 10 minutes. At last, the power decreases stepwise, the whole process takes 2 hours and 9 minutes, and the maximum power of the whole charging process reaches 22.57W.

The whole charging power curve of 30W PD charger is very similar to that of 18W charger, but the peak power is increased to about 22W and the charging speed is faster.

In order to better understand the speed and speed of these chargers to the iPhone 11 Pro Max, the editor has also produced a iPhone 11 Pro Max power change diagram, as shown above, as follows:

The iPhone 11 Pro Max charges with an Apple 5W charger, which consumes 13% of its power in half an hour, 27% in one hour and 40% in one and a half hours. It takes 4 hours and 18 minutes to fully charge.

Using Apple 18W PD charger (original standard) to charge, half an hour of electricity is 45%, an hour of electricity is 77%, an hour and a half of electricity is 94%, all full time 2 hours 17 minutes.

Using apple 30W PD charger, half hour power consumption is 53%, one hour power consumption is 84%, and 1.5 hour power consumption is 96%, which is full of time consuming 2 hours and 9 minutes.

The 5W charging group is not a grade at all compared with the PDfast charging group (2W, 30W). The whole charging speed of the PDfast charging group is nearly half faster than that of the 5W charging group, which has obvious advantages. In the PD fast charging group, the difference between 18W and 30W fast charging group in the whole process time consumption is not large. The data of charging half an hour and one hour are more obvious. The 30W PD fast charging group has 8 percent faster electricity than the PDfast charging group.

Charging head network summary:

Different from Apple's 5V1A charger in the past, this time the iPhone Pro Max model is equipped with USB-C interface 18W PD charger and USB-C-Lightning data line, ordinary users do not need any learning cost to produce "my phone originally supports fast charging" cognition, most consumers will not downgrade to use 5W charger after experiencing the charm of fast charging.

In the previous evaluation, it can be seen that the charging power of all three models of the iPhone 11 can reach 22W. In the full charging test of the iPhone 11 Pro Max, Xiaobian found that the charging pack of IP and PD can not charge 50% of the power in half an hour as before, because the battery capacity of the iPhone 11 Pro Max has increased to nearly 4000 mAh.

The battery capacity of the iPhone 11 Pro is 3110 mAh Xu6 mAh respectively, while the battery capacity of the iPhone 11 Pro Max is 3969 mAh, which is so much larger than that of the other two models. In order to achieve this "half-hour charge 50%" effect, the charger used must have more power than 18W.

Of the three groups, it is clear that the Apple 30W PD kit is the best choice, charging the iPhone 11 Pro Max with the highest power of 22 W, charging 53% in the first half hour, and taking the shortest time, taking 2 hours and 9 minutes. In addition, it does not have a significant advantage over the 18W PD suite in terms of time-consuming, but charging in the first hour is eight percentage points faster.

In order to make the iPhone 11 Pro Max charge at the best power of 22W, the use of the PD charger must not be lower than this power. According to the power specification distribution of the current mainstream product line of the PD charger on the market, the 30W PD charger will be the best choice, not only to feed the iPhone 11 Pro Max, but also to charge the low-power tablet notebook. IPhone 11 Pro Max users need more power PD charger. I want to read this evaluation of small partners already have their own answer, we can predict that 30W PD charger or 30W PD multi charger will usher in a new round of demand growth.

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