Is the nominal charging power of charger manufacturer credible? How to choose charging head correctly?

With the development of science and technology, we have more and more electronic devices in our hands, such as mobile phones, laptops, tablet computers, etc., and their battery life is basically difficult to exceed one day. They all need to carry chargers. I believe many small partners have a deep understanding. There are all kinds of chargers and cables scattered in the backpack and on the table, which is very troublesome and messy. So if you choose a multi port charging head, can it solve the problem? How to choose a third-party charger?

In addition, last year's iPhone 12 series began to cancel the attached charging head. Although it was scolded miserably, it seems that other manufacturers are following suit, and more and more manufacturers intend to cancel the attached charging head.

Obviously, mobile phones can't be used without charging head, and there are also small partners who need a spare charging head, or think that one charging head can charge multiple devices. But if you think it's OK to buy any charger, it's certainly not right, because many manufacturers have their own exclusive encrypted charging protocol, and they can't reach the nominal power with mismatched chargers, or even one tenth of it. So the specific speed of each type of charging head is very different. Today, I'll take you to take a detailed look at the charging situation of each family and tell you how to choose the right third-party charging head.

Note: due to the long space, this paper is divided into three parts. Test one is the actual measurement of using various charging heads for different brands of mobile phones; The second test is the charging test of computer / iPad; Finally, it is a summary to tell you how to choose the charging head when you have different devices. If you want to save time, you can look directly at the final summary.

Test method description

The actual test method, in short, I take the average charging power of 15 minutes as the standard.

Because when charging, the power is not necessarily stable, but often changes, so I will test the actual charging amount for a period of time, and then calculate the average charging power. All mobile phones start charging from less than 10% of the power. Because the charging speed is too fast, it takes too long to test for 30 minutes, So I chose 15 minutes of charge as the standard to calculate the average power.

Due to the power meter, mobile phone display power and so on, there will be some errors, so I will calculate according to the indicators, there are some errors, but can give you a general direction, for reference only, please understand.

[test 1] · mobile part

Test model

I have selected representative products from various manufacturers, which basically support the current maximum power fast charging protocol of each manufacturer. The details are as follows:

18W original charging head for iPhone 12 Pro Max · iPhone 11 pm

Huawei mate40 Pro original 66W charging head

Xiaomi 11 · Xiaomi 65W Gan charger

Original 120W charger

Oppo Reno ace · original 65W charging head

Iqoo 5 Pro original 120W charging head

(why didn't iPhone 12 and Xiaomi 11 use the original, because they didn't send... Xiaomi 11, I also supported "environmental protection" once.)

Original charger for mobile phone

Third party charging head

As mentioned earlier, I found alternatives for both iPhone 12 and Xiaomi 11 because they didn't have the original ones. Then Xiaomi 10 supreme and iqoo5pro, because the power of 120W is too high, and 15 minutes is still too long. The actual charging percentage is too high, and the natural power drop is quite severe, which is unfair. So I only tested the average charging power of these two models in 10 minutes, And they all start at 1%.

Apple is too slow, so it can reach the nominal 18W. Usually, the charging power of mobile phone standard is the highest value, and the average value can't reach that number. Huawei's 66W can only reach 45W; Xiaomi 11, 55W can only reach 48W, but also very good; Xiaomi 10 is the highest, with a nominal power of 120W, which is more than twice as fast as Xiaomi 11, but in fact it is not much ahead, with an average power of 65W; Oppo, nominal 65W, actual 48W; Iqoo, with a nominal capacity of 120 W and an actual capacity of 86W, is actually quite good, which is better than Xiaomi's 120W performance.

Next, what kind of support do these brands of mobile phones have for third-party chargers? What we can imagine is that because of the private agreement, it is certainly not as fast as the original one, so how much slower will it be?

Personally, if you buy a single port charger, such as a spare one, you'd better directly buy more original ones. So I think the third-party, usually multi port charger is worth buying. In fact, there are only three common types: 30W 1c1a charging port, 65w2c1a charging port and 100w2c1a charging port. I have measured many charging heads. In fact, except for those customized by brands, as long as the final charging speed of the third party is not too different, so I don't emphasize the brand. Just follow the specifications.

So you may be a little confused. What is port C and port a? Port C and port a do not refer to the interface connecting to the mobile phone, but to the interface connecting to the charging head. As shown in the figure, this is still very important, because whether the charging head is port C or port a, there is a clear gap in the support for different devices.