For the mainstream terminal devices in the market, whether mobile phones, tablets or laptops, their supporting charging power is increasing, and their fast charging protocols have gradually promoted the development of PD 3.1 and converged fast charging protocols.
Nanjing, as one of the important enterprises in millet ecological chainCoolidaeTechnology Co., Ltd. has launched a number of phenomenal high-performance products such as No. 15 mobile power supply, No. 20 and No. 30 super power bins;This time, the charging head network will test its No. 15 140W 3C1A charger, which not only supports Xiaomi 120W private fast charging, but also supports PD 3.1 140W, integrated fast charging protocol, pushing the user's charging experience to a new height;Now let's take a look at the specific performance!
Unpacking Introduction
As usual, look at the packaging first.
The packaging box uses black background as the bottom, and the product series name: CUKTECH GaN Charger is printed on the front upper part, and the product port information: 140W, 3C1A is printed on the lower part;The middle area is the three-dimensional appearance diagram of the charging bank, and the bottom wire graph represents the matching Type-C charging wire.
The upper part of the back of the packaging box is printed with the product scene schematic diagram, and the lower part is the product related parameter inscription and product barcode sticker.
Features: 140W MAX fast charging, multi port output, PD3.1, small and portable;
Name: CUKTECH GaN Charger 140W 3C1A (hereinafter referred to asCoolidaeNo. 15 charger);
C1+C2: 100W Max (20V Max 6.1A Max)+33W Max (15V Max 3A Max) or 65W Max (20V Max 3.25A Max)+45W Max (20V Max 3A Max);
C1/C2+C3/A:100W Max (20V Max 6.1A Max)+ 33W Max (12V Max 3A Max);
C3+A:5V/4A;
C1+C2+C3/A:65W Max (20V Max 3.25A Max) + 45W Max (20V Max 3A Max)+
5V/1.5A or 45W Max (20V Max 3A Max)+33W Max (15V Max 3A Max)+33W
Max (12V Max 3A Max);
C1/C2+(C3+A):100W Max (20V Max 6.1A Max)+ 5V/3A;
C1+C2+(C3+A): 65W Max (20V Max 3.25A Max)+ 45W Max (20V Max 3A Max)
+(5V/1.5A) or 45W Max (20V Max 3A Max)+33W Max (15V Max 3A Max)+(5V/3A).
Take out all items in the package, exceptCoolidaeIn addition to the No. 15 charger, there are 6A C to C charging wires, instructions, warranty card integrated manual, etc.
CoolidaeThe No. 15 charger adopts the classic titanium gray color matching design of the super power column, and its surface is coated with metallic paint. At the same time, the vertical stripe area with deep black texture covers the front, back panel 1/2 area and USB output panel. The collision between the two designs highlights the advanced scientific and technological sense.
CoolidaeThe front panel of No. 15 charger is screen printed with the words of "CUKTECH" brand and "140W GaN 15" power and series.
In addition, you can also see that the black area is surrounded by bright blue bars, and the area is designed as a sink.
The middle frame USB output panel of Kutec No. 15 charger is configured with 3 * Type-C port and 1 * USB-A port, and is engraved with relevant name identification.
Type-C3 and USB-A female rubber core is black, and there is no widened PIN pin on both sides of USB-A rubber core;Meanwhile, Type-C1 and C2 female rubber cores are bright blue.
Relevant input/output parameter inscription information is screen printed on the pin end panel of Kusike 15 charger, which is consistent with the packaging box.
The charging wire is C to C type, which is bound and fixed with black rubber ring.
The Type-C sub end housing is intaglio printed with the words "6A" and "CUKTECH". At the same time, the connection between the housing and the line body is treated with a secondary thickening injection molding process, which is more resistant to bending and wear.
The inner ring of Type-C terminal is a blue plastic seal ring, which is designed with a special PIN pin inside, or focuses on fast charging.
The POWER-Z KM003C tester was used to read the information of the wire material E-Marker chip, and it was measured that it has 50V5A 240W EPR power transmission and USB 2.0 data transmission capabilities.
The length of charging wire is about 152cm.
The length of Kutec No. 15 charger is about 65.04mm.
The width of Kutec No. 15 charger is about 32.18mm.
The height of Kutec No. 15 charger is about 79.38mm, the volume is about 166.14cm ³, and the power density is about 0.84W/cm ³ when the power of the charger is 140W.
The weight of Kutec No. 15 charger is about 329.9g.
Compared with Apple 140W charger, Kusike No. 15 charger is smaller in size, exquisite in appearance, and has a strong sense of technology.
The Kusike No. 15 charger is placed in the hand of an adult male, occupying the entire palm, or can be held in one hand, making travel convenient.
Protocol testing
In addition to the marked fast charging protocol, it is the significance of this test to explore a complete protocol. At the same time, users can select devices according to specific protocols to achieve a better fast charging experience.
Use the POWER-Z KM003C tester to test the Xiaomi private fast charging gear of Type-C1/C2 port as shown above.
The port actually supports charging protocols such as FCP, AFC, QC3.0, PD3.1, PPS, QC5, DCP, Apple 2.4A and Xiaomi 120W.
It is measured that this port has two groups of millet private voltage gears of 5-11V/6A and 5-20V/6A.
In terms of PDO messages, the port actually has six groups of fixed voltage gears: 5V/3A, 9V/3A, 12V/3A, 15V/3A, 20V/5A, 28V/5A, and two groups of PPS voltage gears: 5-11V/5A, 5-20V/3A.
Use the POWER-Z KM003C tester to test the Type-C3 port protocol, which actually supports charging protocols such as FCP, AFC, QC3.0, PD3.0, QC4+, DCP, Apple 2.4A, and PPS.
In terms of PDO messages, this port has three groups of fixed voltage gears, 5V/2.4A, 9V/2A, 12V/1.5A, and a group of PPS voltage gears, 5-11V/3A.
Use the POWER-Z KM003C tester to read the USB-A port protocol, and support charging protocols such as UFCS, FCP, AFC, QC3.0, and DCP.
The UFS fusion fast charging protocol was tested separately, and a group of fusion fast charging gears of 5.0-11V/3A were measured.
Charging test
Next, let's take a look at the specific use experience of Kutek No. 15 charger. The charging head network will lead you to understand this product from the aspects of compatibility test, charging process and output efficiency test.
Charging compatibility test
During the compatibility test, we can clearly know the charging status of Kutek No. 15 charger for each device. The charging head network will use more than a dozen devices with chargers to test, presenting the real test data for the readers.
Type-C1/C2
Connect the MacBook Pro 16 M1 Max laptop with the Type-C1/C2 port of Kutec 15 # charger through the original MagSafe 3 cable. The measured input power of the laptop terminal is about 27.8V 4.6A 126W, which supports the PD 3.1 140W fast charge.
Connect the Redmi K70 Pro mobile phone to the Type-C1/C2 port of Kutec 15 # charger, and use the POWER-Z KM003C tester to read the power of 17.94V 5.14A 92.14W.
Summarizing the test data to the table, we can see that models with good PD compatibility can shake hands with the 18V voltage gear, while game consoles, tablets and laptop devices generally shake hands with the 15V, 20V gear, and MacBook Pro can shake hands with the 28V voltage gear through specific MagSafe 3 wires.
The power value is plotted as a histogram. It can be seen that the highest charging power is the MacBook Pro laptop with PD 3.1 140W fast charging through MagSafe 3 wire, and the measured power can reach 126.59W;At the same time, it can be seen that the Mi series mobile phone perfectly shakes hands with the Xiaomi fast charging protocol, and all the tested devices can achieve a charging power of more than 50W, the highest is the Redmi K60 premium model, which can reach 100.56W, which is similar to the experience of the original 120W charger.
Type-C3
Connect the Redmi K60 premium mobile phone to Type-C3 port of Kutec No. 15 charger, and use the POWER-Z KM003C tester to read that the input power of the mobile phone terminal is 7.67V 2.96A 22.73W.
Connect Meizu 20 PRO mobile phone to Type-C3 port of Kutec No. 15 charger, and use POWER-Z KM003C tester to read that the input power of mobile phone terminal is 8.44V 3.05A 25.78W.
Summarizing the data into the table, we can see that the mainstream terminal equipment can shake hands with 9V and 12V voltage gears, and can support up to PD 18W fast charging. For Xiaomi mobile phones or models with better compatibility, the charging power can be as high as 25.78W.
The charging power value is plotted as a histogram. It can be seen that terminal devices of mainstream brands can support up to 18W fast charging of PD, while Xiaomi mobile phones, Nubia Z30 Pro, and Meizu 20 PRO models can have more than 22W charging power. Meizu 20 PRO mobile phones have the highest charging power of 25.78W.
USB-A
Connect the iQOO Z7 mobile phone to the USB-A port of Kutek No. 15 charger, use the POWER-Z KM003C tester to read that the input power of the mobile phone terminal is 8.1V 2.94A 23.82W, and the screen displays the successful handshake UFS integration fast charging protocol.
Summarize the test data to the table. The USB-A port can shake hands with the mobile phone device at 5V and 9V charging voltage levels. At the same time, it supports the UFS integrated fast charging protocol and can provide higher charging power to the terminal devices it supports.
The histogram shows that the iQOO Z7, iQOO 12 Pro and realme GT5 mobile phones that support the integrated fast charging protocol have the highest charging power, which can reach about 24W, while the rest of the models are in the range of 9-18W.
Multi port simultaneous output test
The Xiaomi 13 Ultra and Redmi K60 premium mobile phones are charged through the Type-C1+C2 port of the charger. The measured input power of the mobile phone terminal is 53.69W and 56.79W respectively, which is about in line with the nominal power distribution of 67W+67W.
Charge the Redmi K70 Pro, Redmi K50 E-sports Edition and Redmi K60 Premium Edition mobile phones through Type-C1+C2+C3 of the charger. The measured input power of the mobile phone terminal is 55.29W, 26.83W and 25.1W respectively.
The two laptop devices are charged through the Type-C1+C2 of the charger. The measured input power of the laptop terminals is 62.9W and 40.4W respectively, which conforms to the description of nominal 65W+45W.
The two laptop devices and mobile phones are charged by Type-C1+C2+USB-A of the charger. The measured input power of the device terminal is 62.88W, 40.4W and 7.39W respectively, which conforms to the description of nominal 65W+45W+5V1.5A.
Two laptop devices and two mobile phones are charged through the USB port of the charger. The measured input power of the device terminal is 62.86W, 40.4W, 6.61W and 1.99W respectively, which conforms to the description of nominal 65W+45W+(5V1.5A).
Charge the Redmi K70 Pro, Redmi K60 Premium, Redmi K50 E-sports and Xiaomi 13Ultra mobile phones through the USB port of the charger. The measured input power of the mobile phone terminal is 53.92W, 25.66W, 7.89W and 7.28W respectively.
Full charge test
The maximum power of Kutec # 15 charger is PD 140W. In terms of test equipment, the charging head network selects MacBook Pro M1 Max as the test object. The Kutec # 15 charger and MacBook Pro M1 Max are placed in a 25 ℃ thermostat and connected to the power supply. The test results are as follows.
After connecting the power supply, shake hands with 28V voltage, and the power is stable at about 132W in the first 10 minutes;Then the power drops to about 117W and continues to charge for 22 minutes;Then the power drops to about 97W and continues to charge for 33 minutes;Then the power drops to about 66W and continues to charge for 47 minutes;Then the power drops to about 43W and continues to charge until 02:00 in the first hour;Then the power decreases in a "curve" and continues until the end of charging. The whole charging process takes about 1 hour and 57 minutes.
The broken line diagram is drawn. It can be seen that it takes 26 minutes to charge the MacBook Pro M1 Max to 50%, 51 minutes to charge to 80%, and 1 hour and 57 minutes to charge to 100% with the Kutek No. 15 charger.
Next, place the Kutec No. 15 charger and iPhone 15 Pro Max in a 25 ℃ incubator and connect the power supply. The test results are as follows.
After connecting the power supply, shake hands with 9V voltage, and the power is stable at about 26.5W in the first 18 minutes;Then the power drops to about 22W and continues to charge to 31 minutes;Then the power drops to about 16W and continues to charge to 42 minutes;Then the voltage drops to 5V;Then the charging power enters the trickle charging mode and lasts until the end of charging. The whole charging process takes about 2 hours and 14 minutes.
The broken line chart is drawn, and it can be seen that it takes 29 minutes to charge the iPhone 15 Pro Max to 50%, 1 hour and 07 minutes to charge to 80%, and 2 hours and 14 minutes to charge to 100% with the Kutec No. 15 charger.
Conversion efficiency test
In essence, the charger is a conversion device, and there will be losses in the process, which will be emitted in the form of heat;The power drawn by the charger from the socket is often larger than the power marked by the charger;Test the conversion efficiency of Kutec No. 15 charger under 220V 50Hz and 110V 60Hz AC input respectively. The following figure shows the test results.
First, let's see how the conversion efficiency is under 220V 50Hz voltage. The overall conversion efficiency is between 80.34-93.85%;The highest conversion efficiency is 28V5A gear, and the conversion efficiency reaches 93.85%;The lowest conversion efficiency is 5V3A gear, and its conversion efficiency is 80.34%.
Then take a look at the conversion efficiency under 110V 60Hz voltage. The overall conversion efficiency is between 81.43-92.28%;The highest conversion efficiency is 28V5A gear, and the conversion efficiency reaches 92.28%;The lowest conversion efficiency is the 5V3A gear, and the conversion efficiency is 81.43%
On the whole, the conversion efficiency of Kutec No. 15 charger under two types of voltage is excellent among similar chargers.
Ripple test
Since switching power supply is used in the charger, the secondary output of the transformer is not DC, which needs to be output through rectification and capacitor filtering, that is, the output of the charger will have ripple;The charging head network uses an oscilloscope to test the ripple value of the charger output, compare it with the industry standard, and test the output quality of the charger.The lower the ripple, the higher the output quality of the charger.
No-load ripple
First, take a look at the no-load ripple under the voltage of 220V 50Hz. The highest peak and peak value of the ripple is 28V0A, and the peak and peak value of the ripple is 52.8mVp-p;The lowest peak value of ripple is 5V0A, and the peak value of ripple is 41.6mVp-p.
Then let's see how the no-load ripple behaves under 110V 60Hz voltage. The highest peak and peak value of ripple is 12V0A gear, and the peak and peak value of ripple is 48mVp-p;The gear with the lowest ripple peak value is 28V0A, and the ripple peak value is 35.2mVp-p.
Load ripple
First, look at the load ripple under 220V 50Hz voltage. The highest peak peak value is 20V5A gear, and the peak peak value is 64.8mVp-p;The lowest peak value of ripple is 28V5A gear, and the peak value of ripple is 44.8mVp-p.
Then let's see how the load ripple behaves under 110V 60Hz voltage. The highest ripple peak and peak value is 28V5A gear, and the ripple peak and peak value is 84.8mVp-p;The gear with the lowest ripple peak value is 5V3A, and the ripple peak value is 42.4mVp-p.
Summary
In YD/T 1591-2009 communication industry standard, the ripple requirement of the charger is not higher than 200mVp-p. Under the input voltage of 220V 50Hz, 110V 60Hz, the maximum ripple peak value of the output power of Kutec No. 15 charger is 84
8mVp-p, in line with the industry standard that the ripple is not higher than 200mVp-p.
Temperature test
The charger is a kind of conversion equipment. There will be losses during the charging process, which will be emitted in the form of heat, so the charger will generate heat.Kusike No. 15 charger can support 28V 5A 140W output at most. Place the charger in a 25 ℃ incubator and collect the temperature of the charger surface after one hour of 28V5A load.
First, let's see how the temperature of the charger behaves under the 220V 50Hz voltage output.
One hour later, the surface temperature of the charger photographed by the thermal imager was 63.6 ℃.
The maximum surface temperature on the other side of the charger is 63.9 ℃.
Let's see how the temperature behaves at 110V 60Hz.
One hour later, the maximum temperature of the charger surface photographed by the thermal imager was 69.5 ℃.
The maximum surface temperature on the other side of the charger is 68.3 ℃.
Summarize the temperature data into a table. The maximum temperature is 63.9 ℃ at 220V 50Hz and 69.5 ℃ at 110V 60Hz.
The data is plotted as a column chart. It can be seen that the maximum temperature of Kusike No. 15 charger at the output voltage of 220V 50Hz and 110V 60Hz is 69.5 ℃. The maximum temperature during load test meets the requirements of IEC International Electrotechnical Commission IEC62368 and the new national standard GB4943.1 2022 for electronic and electrical equipment testing, and the temperature is not higher than 77 ℃.
Summary of charging head network
The shell surface of Kusike No. 15 charger is coated with metallic paint, and the double design collision splicing highlights the scientific and technological texture;In addition, it has 4 USB ports (1 * USB-A+3 * Type-C), which can support Xiaomi, PD3.1 and integrated fast charging. The charging experience is no inferior.
In terms of charging performance, the Type-C1/C2 port of Kutec No. 15 charger can support up to PD 140W/Xiaomi 120W output, and the Type-C3 and USB-A ports can support up to 33W output. In the compatibility test, each port can provide relatively ideal fast charging power for mainstream mobile phones on the market, especially meters and high-power PD fast charging devices;At the same time, the USB-A port has an integrated fast charging protocol. For devices that support UFS fast charging such as iQOO Z7 and realme GT5, the charging power can reach about 23W, improving the user's charging experience.
Using the charger with MagSafe 3 charging cable to charge the MacBook Pro 16 laptop, it took 51 minutes to charge 80% of the power, and it took a total of 1 hour and 57 minutes, which is equivalent to the experience of the original 140W charger.In addition, the output efficiency of each voltage range of the charger is about 80% - 94%, and the 28V range is up to 93.85%.At the same time, the ripple value under domestic voltage does not exceed 65mVp-p, and the output is stable and excellent.
On the whole, Kutek No. 15 charger supports the private 120W fast charging of Xiaomi, and also supports the integration protocol of PD 3.1, QC and UFS. For mainstream devices in the market, its power can meet the fast charging needs of mobile phones, tablets and light and thin notebooks, improve users' charging experience, and solve more device endurance problems.