Is Huawei's first 65W dual port Gan charger worth buying?
Recently, the growth of Gan fast charging is booming. Charging experience is really fast. Dahlwin also bought a new dual port 65W super fast charger from Huawei. Take it apart for evaluation to see if it's worth buying
As an ordinary user, what features do you care about most about Gan fast charging? It must include these: fast charging protocol supported by charging head; Charging power and speed; Which mobile phone models can be compatible with. Let's take a look at these parameters in the following evaluation.
In terms of input, this charger only supports input between 200 and 240, which means that it cannot be used in countries and regions with 120V or 100V such as the United States and Japan. It can be said that it is developed for Chinese users. In terms of output, besides the type C port, the USB port also has the a port, which supports 5V 4A or 10V 4A output, which means that this charging head supports Huawei's own fast charging protocol. Then, USB type-C has 5V or 9V or 12V or 15V and 20V 3A output options, which means that this charger supports PD. We can use this charger to charge the iPhone that supports USB fast charging after iPhone 8 and some other notebook computers and rechargeable mobile phones that support usbpd protocol.
The important chip of this charging head is a GaN switch device from Gan systems. There is no information. It should be customized for Huawei. The next main test tool is this USB voltmeter
The functions of USB voltmeter include measuring the voltage, current, electric quantity of USB and the internal resistance of load, etc. at the same time, it also has a simple USB oscilloscope function, which can draw the ripple of voltage and current. In addition, it has a very powerful function to read the internal messages of the charger or the device, and analyze the output protocol supported by the charger through the messages, such as pd3.0, Samsung's AFC, Apple's 5v2.4a, or Huawei's super SCP, etc.
The first step of the evaluation is to see what protocol this charger supports. The operation is very simple. Connect the output of the charger to the USB voltmeter directly and power it on directly. After testing, it is found that the type-C interface of Huawei charger supports pd3.0 and PPS, with output voltage from 5.5 to 21V and maximum power of 63w. In addition, it supports the 5V and 9V output of qc2.0 and all Huawei charging protocols. But it doesn't support apple and Samsung's fastcharge, vivo and MTK protocols.
Output voltage value measurement: whether it supports multiple voltage outputs as stated in the package. Can be real-time voltage through the USB voltmeter, indeed, as you can see, the nominal output voltage can be measured.
Here is the charging test for the real machine. First, test Huawei's own mobile phone, Huawei P30 pro, which supports Huawei's 40W super fast charging. Handshake success, display 40W fast charging Icon:
At the same time, on the tester, it can be seen that the charging power is rising, and the super fast charging can be carried out smoothly.
When testing with iPhone x, when the USB tester is connected, only the fast charging protocol of pd2.0 is triggered, and the charging speed is only 5v3a. When the iPhone x is directly connected with the fast charging, due to the cable problem, I didn't see the charging prompt. It's a pity that I didn't test it.
Finally, personal feelings of use only represent individuals:
First of all, there is no doubt that this charger is exquisitely made, and it feels very good in hand, with a very warm appearance. Charging Huawei's own products is also very fast.
Second, the charger supports many fast charging protocols. With pd3.0, you can basically take all of most USB fast charging devices.
Third, compared with Xiaomi's same 65W Gan, Huawei's charger is already very small, but Xiaomi's is still slightly better. But the disadvantage of Xiaomi is obvious, there is no USB port. Huawei, because of its USB port, can go down to more and older USB ports, such as Android phones long ago, or iPhones that don't support fast charging. In terms of price, compared with Xiaomi, Huawei does not have an advantage. The price of a certain treasure on the east side is 220-240 yuan, while Xiaomi's is only 149 yuan.
Fourth, although the support for Huawei's mobile phone is very good, the support effect for iPhone is not so good, and it can't trigger the fast charging of pd3.0 on iPhone.
That's all the comments on Huawei's 65W Gan. If you are a loyal Jazz user, it's very nice to buy one.