Preface
In February 2022, Nubia held a Z40 Pro series new product online launch conference and officially released the Z40 Pro, which belongs to the Z series. It is officially said to be a new flagship mobile phone that challenges humanistic imaging and mobile phone performance, and has a large capacity of 5000mAh. The battery also supports 80W super fast charging, and officials say the battery life can satisfy photography and gaming enthusiasts.
This 80W fast charging charger provided as an additional bonus is very suitable for the appetite of the charging head network. The charging head network will conduct an actual test of this charger to see this charger as a "bonus" What will be the difference.
Product Introduction
As usual, let’s look at the packaging first.
The pure black packaging box has a bright design of the charger printed on the front, with conspicuous white 80W words in the lower right corner and the Nubia brand logo in the upper left corner.
There is a charger specification sticker on the back of the packaging box, with the model number NB-A2040C. The
packaging box is designed as a sky and earth box, with the Nubian red logo printed on the side of the sky box.
When you open the package, in addition to the charger, it also comes with an all-in-one entry manual including a charger manual and a warranty card.
Nubia 80W fast charger adopts a bright + matte splicing design on the edge of the pins, with rounded edges and a deep business style as a whole.
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The charger is equipped with a single USB-C interface on the side. There is a white line logo around the interface, and the lightning logo indicates that it supports fast charging; the words "80W" and "GaN (Gallium Nitride)" are printed on the bottom.
charger adopts a non-foldable pin design, which makes it easier to scratch the surface of other device shells when stored.
The charger specification parameter inscription is printed on one side of the pin.
Model: NB-A2040C
Input: 100-240V~ 50/60Hz 2A
Output: 5V3A, 9V3A, 12V3A, 15V3A, 20V4A
PPS: 3.6-11V6A, 3.6-20V4A
Made by Shenzhen Kunxing Technology Co., Ltd. and has CCC certification logo. The width (thickness) of the
charger is approximately 31.21mm. The height of the
charger is approximately 65.99mm. The length of the
charger is about 53.92mm, and the volume is about 111.05cm³. Calculated based on the charger power of 80W, the power density is about 0.72W/cm³.
is slightly wider than the fifth set of 1 yuan coins. The weight of the
charger is about 174.8g, which is about 29 coins in weight compared with the 6.1g of the fifth set of 1-yuan coins. Comparing
when placed in the palm of an adult male, the body shape control is quite satisfactory.
protocol test
pursues the exploration of a complete protocol to facilitate users to select devices based on specific protocols to achieve a better fast charging experience.
using POWER-Z KM002C measured that the C port supports fast charging protocols such as FCP, SCP, QC3.0, PD3.0, QC4+ and PPS, covering a wide range of protocols. In terms of the measured PDO message of
, it supports five sets of fixed voltage levels: 5V3A, 9V3A, 12V3A, 15V3A and 20V4A, as well as two sets of PPS levels: 3.6-11V5A and 3.6-20V4A. The measured and specification inscription parameters are slightly different on the PPS level. In and out.
product test
Next, I will show you the specific experience of using this charger. Charging Head Network will give you a comprehensive understanding of this charger from aspects such as compatibility testing, full charging testing, and standby power consumption testing.
charging compatibility test
compatibility test session can clearly know the charging status of each device by the charger. Charging Head Network will use dozens of devices with chargers for testing, presenting real test data to readers.
iPhone 13 Pro Max is currently the latest and largest iPhone, supporting fast charging power of about 27W. Use a charger to charge iPhone 13 Pro Max. The power is 8.88V 2.92A 25.98W. The charger can fully meet the fast charging requirements of iPhone 13 Pro Max. fill demand.
charges the Red Magic 7 Pro with a power of 16.79V 4.14A 69.68W.
charges the Red Magic 6 Pro with a power of 17.26V 4.14A 71.63W. The charger also supports high-power fast charging for Red Magic phones.
Switch base TV mode supports PD fast charging, but if you want to activate the base TV mode, you need a PD charger that supports PD fast charging levels of 15V3A and above, that is, the charger must support at least 45W fast charging. Use the charger to power the Switch base TV mode. The charger output power is 15.24V 0.28A 4.32W, and the base TV mode is successfully lit.
First, let’s take a look at the compatibility performance of Nubia’s 80W USB-C port. The actual measured data is as shown below.
summarized the compatibility test data. Overall, the mobile phone can provide high-power fast charging and can also meet the fast charging needs of game consoles, tablets and even some laptops, and the performance is good.
As can be seen from the histogram, this Nubia NB-A2040C 80W charger can provide a higher power of about 70W for charging Nubia and some Xiaomi brand mobile phones, and can charge other brands of mobile phones. The power is not so prominent, and overall the gap is not big and relatively gentle.
Full charging test
For this 80W charger from Nubia, this time I chose to charge MacBook Pro 13. The following is the full actual test.
This is the data of the entire charging process of MacBook Pro 13 using Nubia 80W charger. The whole process is roughly divided into 4 stages and ends in 2 hours and 20 minutes. The maximum power is 19.92V 2.91A 58.03W.
plots the entire charging process as a curve. It can be seen that the charger charges the MacBook Pro 13 35% in half an hour, 67% in 1 hour, and it takes about 2 hours and 19 minutes to fully charge.
Standby power consumption test
Nowadays, it has become normal for users to not unplug the device from the socket after using the charger to charge the device. Many readers want to know whether the charger wastes electricity if it is always plugged into the socket. The standby power consumption test session is to answer this question.
has been tested by power meter . The no-load power consumption of the charger at 220V 50Hz is 0.177W. The converted power loss in one year is about 1.55KW·h. If the market price of electricity is 0.6 yuan/KW·h, the charger The annual electricity bill is about 0.93 yuan. The no-load power consumption of
10V at 60Hz is 0.076W. After conversion, the electric energy lost in one year is about 0.66KW·h. If the market price is 0.6 yuan/KW·h, the annual electricity bill of the charger is about 0.396 yuan.
Summary
The standby power consumption test is how much power will be consumed in a year if the charger is plugged into the socket and not used. As for the numerical value, the lower the better. First of all, after the above test, the standby power consumption of the Nubia 80W charger is completely lower than the specified value of GB20943-2017 standard which should not be higher than 0.5W.
Let’s calculate the money on the premise that it meets the standards. According to actual measurements, if the Nubia 80W charger is not used in the socket in a 220V mains power environment, the electricity bill used in a year is only about 9 cents; while in a 110V mains power supply Under normal circumstances, if it is not used, the electricity bill used in a year is only about 30 cents. It's almost negligible.
Conversion efficiency test
The charger is essentially a conversion device, and there will be losses in the process, which are emitted in the form of heat. We usually look at the parameters on the charger. The output of 100W or 65W is the maximum output power that the charger can provide for the device, but the power the charger draws from the socket is often larger. The following is the charger's AC 220V 50Hz and 110V 60Hz Conversion efficiency tests were conducted separately under the input conditions, and the test results are as follows.
20V 50Hz, test the charger at full output power at each voltage range: the input power at the AC end of the power strip and the output power at the USB end are measured at the five levels. Through calculation, the conversion efficiency of the charger can be obtained from It ranges from 86.45% to 90.52%.
10V 60Hz, the charger's conversion efficiency ranges from 87.21% to 89.06%.
Summary
The conversion efficiency can reflect the quality of the charger. From the data point of view, the higher the percentage, the better. As can be seen from the above test data, the efficiency at multiple power outputs reaches more than 90%. This efficiency ranks among the top among some high-power PD charger camps. The 100-watt fast charging from Lenovo to charger is aimed at charging laptops. The most intuitive feeling for users is that charging laptops is efficient and the heat generation is naturally low.
Ripple test
Since the charger uses switching power supply , the secondary output of the transformer is not direct current . It needs to be output through rectification and capacitor filtering, that is, there will be ripples in the charger output. Charging Head Network uses oscilloscope to test the ripple value output by the charger, compare it with national standards, and detect the output quality of the charger. The lower the ripple, the higher the quality of the charger's output.
ripple test is divided into two types: no load (Y-axis current in the histogram is 0A) and heavy load (Y-axis current in the histogram is non-0A). In the no-load part, under 220V 50Hz AC input, the charger has the highest ripple when it is in the 5V0A no-load state, which is 48mVp-p; when it is in the 12V0A and 15V0A no-load state, the ripple is the lowest, which is 16mVp-p. Under the 110V 60Hz AC input, the
charger has the highest ripple at 32mVp-p when it is in the 5V0A no-load state; the lowest ripple is 16mVp-p when it is in the 9V0A, 12V0A, 15V0A and 20V0A no-load state.
In the heavy-load part, under 220V 50Hz AC input, the charger has the highest ripple when it is in the 5V3A output state, which is 72mVp-p; when it is in the 15V2A output state, the ripple is the lowest, which is 40mVp-p. Under 110V 60Hz AC input, the
charger has the highest ripple at 64mVp-p when it is in the 5V3A output state; the lowest ripple is 40mVp-p when it is in the 12V2A and 15V2A output states.
Summary
The lower the ripple value, the higher the output quality of the charger. Judging from the test data, the ripple value of the entire charger is at a low level, indicating that the output quality of the charger is very high.
Temperature test
As mentioned earlier, the problem of efficiency conversion is involved when the charger is working. Most of the power lost is dissipated as heat, so the heat generated by the charger when working for a long time is also an important part of the test. Let the charger continue to output power of 20V4A 80W for one hour, collect the surface temperature of the charger, and place the charger in a 25°C constant temperature box throughout the experiment.
First, let’s take a look at the temperature performance of the charger in a 220V50Hz mains environment.
html After 31 hours, the maximum temperature of the two side surfaces of the charger taken using a thermal imager was 64.8°C.
The maximum temperature of the other two side surfaces is 66.7℃.
Let’s take a look at the temperature performance of the charger in a 110V 60Hz mains power environment.
html After 31 hours, the maximum temperature of the surfaces on both sides of the charger was photographed using a thermal imager to be 71°C.
The maximum temperature of the other two side surfaces is 70.7℃.
summarizes 4 temperature data, and the values of the 4 data are between 64℃ and 71℃.
As can be seen from the histogram, the temperature under 220V mains input is completely lower than the temperature limit specified in GB4943.1-2011. Among them, the charger has the highest temperature at 110V input, which is 71°C; and the lowest temperature at 220V input, which is 64.8°C.
charging head network summary
Nubia 80W fast charger adopts a pure black design with a bright surface + matte surface + rounded corners, and has a deep and mysterious business texture; in addition, it has a maximum output power of 80W, and the volume control performance is also the best among similar products. It is relatively excellent. Although the non-foldable prong design is more stable to use, it may scratch other devices when traveling and storing it.
In terms of performance, the Nubia 80W fast charger is equipped with a single USB-C output interface, which can meet the fast charging needs of mobile phones, tablets, and laptops. In the full charge test of the MacBook Pro 13, it only took 2 hours and 19 minutes.The quality of the
charger is demonstrated by ripple test, conversion efficiency and temperature test; the lower the ripple, the higher the output quality of the charger. From the actual measurement results, it can be seen that in the two types of mains air conditioners: 220V 50HZ and 110V 60Hz Under load and heavy load conditions, the ripple value of this charger in most output gears is around 50mVp-p, and the output quality is self-evident; the conversion efficiency is good, between 86.45% and 90.52%. The efficiency at 80W output can reach 90.52%; in addition, high conversion efficiency means low heat generation. In an environment of 25°C, with a full load of 20V4A 80W for 1 hour, the highest temperature under domestic mains power is only 66.7°C, which is not too warm. Hot to hand, safer to charge.
From an overall macro perspective, although this Nubia 80W fast charger is a single USB-C interface charger, it is an upper-middle-class product in terms of configuration and performance; the current price is less than three digits. , can be purchased separately, and the experience is not much different from the original 96W charger of Apple .
