preface
Speaking of NetEase Yanxuan, what will everyone think of? For the author, it is the phrase "good life, not so expensive", and this slogan has also become "with a rigorous attitude to select the world's best products for Chinese consumers" with the growth of the brand.
Open the home page of NetEase Yanxuan, from home to digital products, before the charging head network also dismantled NetEase Yanxuan for everyone, NetEase intelligent manufacturing a variety of Gallium nitride charger products, from the material to the performance are outstanding. The recent 30W charger market is hot, NetEase has also launched the corresponding 33W products, let's see if it can inherit the glory of its predecessors.
Unbox
NetEase 33W dual-port Gallium Nitride charger packaging is quite simple, the geometric pattern of the product is printed on the front.
On the back of the package is the power and name of the product.
NetEase 33W Gallium Nitride dual-port charger shell adopts two kinds of treatments of bright surface and fog surface, which makes the white more layered, and the interface surface is slightly tightened to make the shape more lively. The side of the charger is printed with the logo of NetEase Intelligent Manufacturing.
The charger's pins are fixed for better weather resistance.
The charger's interface 1C1A configuration, the USB-A interface of the green rubber core is quite outstanding, and there is an LED indicator above the interface.
The bottom of the charger is printed with parameter inscription information, the model of this product is NIT-TCA-01-GaN33CA-WH, support broadband voltage input, C port maximum output 33W, A port maximum output 30W, dual port simultaneous output total power 17W.
The height of the charger is about 34.36mm.
The length is approximately 31.1mm.
The width is about 31.09mm, the size of the charger is about 34.36×31.1×31.09mm, the volume is about 33.22cm, calculated by the charger power 33W, the power density is about 0.99W/cm, which is quite good in the configuration of the dual port.
Compared with the Apple 30W charger, this volume difference is too crushing.
The front of the charger is compared with the one dollar coin.
The monomer weight of the charger is about 42.8g.
Holding it in your hand, the volume control is quite impressive.
Protocol testing
This test module mainly tests the charger's fast charging protocol, and the user can match the output device according to the specific protocol, so as to obtain a better fast charging experience.
In terms of protocols, chargerLAB's POWER-Z KT002 reads the fast charging protocol of the charger's USB-C interface, and the actual test supports Apple2.4A, QC2.0, QC3.0, QC4+, AFC, FCP, SCP, PE, PD3.0 and PPS charging protocols.
In terms of PDO messages, it supports five sets of fixed voltages and 3.3V-11V3A sets of PPS voltage files of 5V3A, 9V3A, 12V2.5A, 15V2A and 20V1.5A, with better device compatibility.
Read the fast charging protocol of the USB-A interface of the charger, and support Apple2.4A, QC2.0, QC3.0, AFC, FCP, SCP and other charging protocols.
Product reviews
Next, I will take you to see the specific experience of this charger. The charging head network will take everyone to understand this charger from the aspects of compatibility test, charging test, standby power consumption test, etc.
Charging compatibility testing
The compatibility test link can clearly know the charging situation of the charger for each device, and the charging head network will use dozens of devices with the charger for testing, presenting the reader with real test data.
Using the Samsung 45W PD charger to charge the iPhone 13 Pro Max, the power is 9.17V 2.93A 26.89W, which can already meet the fast charging needs of the iPhone 13 Pro Max.
iPad Air 5 is the latest product in the Air series product line, equipped with USB-C interface and support for PD fast charging, using USB-C to charge the iPad Air 5, with a power of 15.19V 1.91A 29.06W.
Charge the MacBook Pro 16 2021 with 20.19V 1.44A 29.09W.
Thanks to the widespread popularity of USB PD fast charging and USB-C physical interface, this wind also blows to the power tool, the charging head network of this Mijia pistol drill is equipped with a USB-C charging interface, and supports USB PD fast charging protocol, using USB-C to charge the Mijia pistol drill, the power is 9.15V 1.45A 13.29W.
Summarize the USB-C compatibility tests for easy reference. Overall, USB-C supports fast charging of devices very well, and no incompatibilities were found.
From the histogram part, it can be clearly seen that the charging power of each device is high or low.
Let's take a look at the fast charging compatibility test of the USB-A interface.
Use USB-A to charge the Meizu 18 Pro with a power of 9.25V 3.1A 28.77W.
The USB-A compatibility tests are summarized for easy reference. USB-A is mainly aimed at the fast charging of mobile phones, and the overall fast charging compatibility is good.
From the histogram part, it can be clearly seen that the charging power of each device is high or low.
Multi-port simultaneous output test
The charging data output by multiple ports at the same time is also crucial for a charger, after all, it can charge multiple devices at the same time is also one of its highlights.
The 1C1A using the charger charges two phones simultaneously, with power of 13.72W and 9.13W, respectively.
Full test of charging
NetEase strictly selected this charger supports 30W PD fast charging, which can already provide charging for some thin and light books, after all, the charger power equipped with the MacBook Air M1 is 30W, so the test choice of the whole charging process is to charge the MacBook Air M1, and the following is the actual test of the whole process.
This is the use of NetEase Yanxuan 33W charger 1C1A USB-C for the MacBook Air M1 charging full data change map, the whole process is roughly divided into 3 stages, in 2 hours and 36 minutes charging ends, the maximum power is 20.18V 1.43A 28.94W.
The curve chart can be seen that the charger is charged into the laptop for a period of time, from the curve chart, it can be understood that NetEase strictly selected 33W charger 1C1A for macBook Air M1 half an hour to charge 27%, 1 hour to charge 53%, fully charged about 2 hours and 35 minutes.
Standby power consumption test
Nowadays, it is the norm for users to use the charger to charge their devices and no longer unplug them from the outlet. Many readers want to know whether the charger is wasted if it is always plugged into the socket, and the standby power consumption test session is to answer this question.
After the power meter test, the charger in 220V 50Hz no-load power consumption of 0.042W, converted to a year of loss of electrical energy is about 0.36KW· h, if the market price of electricity is 0.6 yuan / KW ·h, the charger's annual electricity cost is about 0.216 yuan.
The no-load power consumption at 110V 60Hz is 0.038W, which translates to a year's loss of electrical energy of about 0.33KW·h, and if the market price is 0.6 yuan/KW·h, the charger's annual electricity cost is about 0.198 yuan.
Conversion efficiency testing
A charger is essentially a conversion device that is lost during the process and dissipated in the form of heat. We usually look at the charger above the parameter output 100W or 65W is the maximum output power that the charger can provide for the device, but the charger draws more power from the socket, the following is the charger in the case of 220V 50Hz and 110V 60Hz AC input respectively carried out conversion efficiency test, the test results are as follows.
The histogram summarizes the conversion efficiency of the charger at different output levels under the two input voltages. At 220V 50Hz, the output power of the charger in each voltage gear is fully tested: the input power of the AC terminal of the power strip and the output power of the USB terminal are measured in five gears, and the conversion efficiency of the available charger varies from 87.25% to 91.74% by calculation.
At 110V 60Hz, the conversion efficiency of the charger varies from 85.99% to 89.81%.
Ripple test
Due to the switching power supply in the charger, the secondary output of the transformer is not direct current, and it needs to be rectified and capacitor filtered, that is, there will be ripple in the charger output. The charging head network uses an oscilloscope to test the ripple value of the charger output, compare with the national standard, and detect the output quality of the charger. The lower the ripple, the higher the output quality of the charger.
The ripple test is divided into two types: no load (0A current on the Y axis in the histogram) and heavy load (the current on the Y axis in the histogram is not 0A). In the no-load part, the charger has the highest ripple at 42mVp-p when it is in the 5V0A no-load state under the 220V 50Hz AC input, and the lowest ripple at 28mVp-p when it is in the 15V0A no-load state.
In the heavy-duty part, the charger has the highest ripple of 92mVp-p when it is in the 5V3A output state at 220V 50Hz AC input, and the lowest ripple when it is in the 20V1.5A output state, which is 58mVp-p.
Temperature testing
As mentioned earlier, the charger will involve the problem of efficiency conversion, and the vast majority of the lost power is dissipated by heat, so the heat of the charger working for a long time is also an important part of the test. Let the charger output at 20V1.5A 30W power for one hour continuously, collect the surface temperature of the charger, and place the charger in a 25°C incubator throughout the experiment.
First, let's take a look at the temperature performance of the charger in the mains environment of 220V50Hz.
After 1 hour, the maximum temperature of the two side surfaces of the charger was 66.5 °C when photographed using a thermal imager.
The maximum temperature on the other two sides is 64.1 °C.
Look at the temperature performance of the charger in the mains environment of 110V 60Hz.
After 1 hour, the maximum temperature of the surfaces on both sides of the charger is 73.9 °C when photographed with a thermal imager.
The maximum temperature on the other two sides is 67.9 °C.
The temperature test data is summarized here for easy viewing.
1 hour full load stability test
After long-term use, will the charger be reduced due to overheating? The charging head network also tested the NetEase Yanxuan 33W charger 1C1A.
The charger gear is adjusted to 20V1.5A, and the output is continuously output at 30W power for one hour, and the voltage and current are horizontal and straight during the test, without obvious fluctuations, and the use of full load for a long time is also quite stable.
Charging head net summary
NetEase Intelligent Manufacturing 33W dual-port Gallium Nitride charger C-port maximum output 33W, A-port maximum output 30W, dual-port output measured total power of more than 22W, support Apple2.4A, QC2.0, QC3.0, QC4+, AFC, FCP, SCP, PE, PD3.0 and PPS and other charging protocols.
Small size also has large energy, measured NetEase intelligent manufacturing 33W dual-port gallium nitride charger is not only quite amazing in volume control, rich protocol support also ensures a wide range of compatibility, in the actual test, whether it is iPhone, iPad, Android machine or notebook, there is a good charging experience.