Preface
Recently, Greenlink has brought a new trendy toy charger - 30W small robot charger, which is very cool in appearance and full of personalization, and is a trendy charging product.
Greenlink 30W small robot charger has three fashionable colors of blue pink, white, and space gray, corresponding to dreamers, defenders, and watchmen respectively, and the charger is equipped with LED displays, and different charging modes will show a variety of expressions, making charging more fun. It supports PD3.0, QC, PPS, AFC and other fast charging protocols, and is widely compatible with most mobile phone brands on the market.
Unboxing introduction
This evaluation mainly uses space gray, that is, the "Watchman" style, and the front of the packaging box uses a transparent frosted plastic shell, and the charger body is clearly visible; This charger belongs to the "Flash Charger" series of products, equipped with a single USB-C port and an output power of "30W".
The main selling points of the product are printed on the side of the package: gallium nitride technology for safe fast charging, Thermal Guard intelligent temperature control technology, compatible with laptops/tablets/mobile phones and other devices, and mobile phone charging speed up to 350%.
The back of the box is still the charger parameter information and related certification marks.
Product Name: 30W USB-C GaN Fast Charging Charger (hereinafter referred to as: Greenlink 30W Small Robot Charger);
Model: X622;
输入：100-240V~50/60Hz 800mA Max；
USB-C 输出: 5V/3A、9V/3A、12V/2.5A、15V/2A、20V/1.5A、3.3-11V/2.7A;
输出总功率:30W Max;
Brand: Shenzhen Greenlink Technology Co., Ltd.
Take out all the items in the package, in addition to the charger itself, there is also an instruction manual, warranty cardboard, etc.
The Greenlink 30W Small Robot Charger abandons the traditional charger shape and integrates the design of trendy toys to create a Q version design that resembles the appearance of a robot, which is cute and cool, and rich in fun. At the same time, the charger is made of V0 fireproof and flame-retardant materials, and the workmanship texture is first-class.
The Greenlink 30W Small Robot Charger is available in blue-pink, space gray and white, and the front panel has a smart display with a smooth surface and high transparency, which can display cute expressions in different charging states.
The overall shell of the charger is sprayed with silver-gray metallic paint, which is beautiful and fashionable as a whole; There is a non-slip silicone material on each side, which is easier to plug and unplug under force.
The "30W" logo is also printed on the back of the Greenlink 30W small robot charger.
The charging port is set in the middle of the top and is a single Type-C type port, and the female rubber core is black.
The charger adopts a foldable pin design, and the pin surface is also silk-screened with detailed product parameters, which is consistent with the packaging box, and will not be repeated here.
The main body length of the Greenlink 30W small robot charger is about 40.22mm.
The main body width of the Greenlink 30W small robot charger is about 36.64mm.
The height of the main body of the Greenlink 30W small robot charger is about 45.48mm. The size of the charger is about 40.22×36.64×45.48mm, the volume is about 67.02cm³, and the power density is about 0.45W/cm³ based on the charger power of 30W.
The Greenlink 30W Small Robot Charger weighs about 54.5g.
Compared with Apple's 30W charger, the Greenlink 30W Small Robot Charger is smaller and more personalized.
The 30W small robot charger is placed on the palm of an adult man's hand, which looks exquisite and full of trendy ornaments.
Protocol testing
Test the complete fast charging protocol of the charger, and users can match the output device according to the specific protocol, so as to get a better fast charging experience.
使用POWER-Z KM003C测得 Type-C 口支持FCP、SCP、AFC、QC3.0、QC4+、DCP、Apple 2.4A、PD3.0以及PPS快充协议，基本涵盖市面上主流的充电协议。
PDO 报文方面,实测Type-C端口具备5V/3A、9V/3A、12V/2.5A、15V/2A、20V/1.5A五组固定电压档位,以及 3.3-11V/2.75A一组 PPS 电压档位。
User experience
In daily use, what kind of charging experience does the Greenlink 30W small robot charger have?
When the Greenlink 30W small robot charger is placed on the desktop, it stands horizontally, and from the appearance, it is only the look and feel of the desktop knick-knacks.
When no device is connected, the charger will display the [- -] expression, and under the normal charging detection mechanism, when charging the device, the LED display will display a "happy face" expression, indicating that it is charging.
The expression of the charger will change continuously during the rapid charging, and there will be a [^ ^] smile expression when the charging is completed or the trickle charge is completed.
Product testing
Next, we will take you to understand this charger in an all-round way from the aspects of compatibility test, charging whole process test, standby power consumption test, etc., and take a look at the specific experience of this charger.
Charging compatibility test
The compatibility test link can clearly know the charging situation of the charger for each device, and dozens of different models will be tested this time. Let's take a look at the specific fast charging support of the USB interface.
Connect the Huawei Pura70 Pro+ to the C port of the Greenlink 30W small robot charger, and use the POWER-Z KM003C tester to read the power to 8.09V 2.48A 20.1W.
Connect your MacBook Pro M2 to the C port of the Greenlink 30W Small Robot Charger and use the POWER-Z KM003C tester to read the power to 19.91V 1.46A 29.14W.
Summarizing the data into a table, most mobile phones can shake hands with 8V and 9V voltage ranges; Some tablets and game consoles can shake hands with 15V voltage range; Laptops can shake hands up to 20V.
Draw a histogram, through the green 30W small robot charger for the power of the tested mobile phone performance is good, can be roughly divided into 15W, 18W, 22W and other levels, for the iPhone 15 Plus, which mainly uses the PD fast charging protocol, it can reach close to 27W, compatible with mainstream mobile phone brand fast charging; For most other tablets, game consoles, laptops, etc., the highest charging power is MacBook Pro M2, which is 29.14W.
Charging is tested throughout the process
The maximum output power of the Greenlink 30W Small Robot Charger Evaluation is 30W, and the charging head network selected the iPhone 14 Pro Max as the test object in terms of test equipment, and placed the GreenLink 30W Small Robot Charger Evaluation and iPhone 14 Pro Max in an incubator at 25°C, and turned on the power supply, and the test results are as follows.
After turning on the power, shake hands with 9V voltage, and the power is stable at about 25W for the first 9 minutes; Then the power drops to about 19W and continues to charge until the 26th minute; Then the power drops again to about 13W and continues to charge until the 40th minute; In the 55th minute, the handshake voltage is 5V, the power drops to about 7W and continues to charge until the 55th minute; It then goes to trickle charging until it is fully charged, and the whole charging process takes about 2 hours and 20 minutes.
Drawing a line chart, it can be seen that the evaluation of the Greenlink 30W small robot charger took 25 minutes to charge the iPhone 14 Pro Max to 50%, 55 minutes to charge to 80%, and 2 hours and 20 minutes to charge to 100%.
No-load power consumption test
Whether the charger will waste electricity when it is not in use when it is plugged into the socket, and how much power will be lost, is a question in the minds of many readers, and the standby power consumption link is to answer this question. Plug in the charger to the PA300 series power meter for charging data logging, and read the data on the power meter, the test results are as follows.
After the power meter test, the no-load power consumption of the charger at 220V 50Hz voltage is 0.094W, which is converted into a year of about 0.823KW·h, if the market price is 0.6 yuan/KW·h, the annual electricity cost of the charger is about 0.49 yuan.
Let's take a look at the no-load power consumption at 110V 60Hz voltage, the power consumption read by the power meter is 0.07W, which is converted into a year of about 0.62KW·h, if the market price is 0.6 yuan/KW·h, the annual electricity cost of the charger is about 0.37 yuan.
brief summary
After the above no-load power consumption test, the evaluation of the 30W small robot charger of Greenlink is not used when plugged into the socket in the 220V 50Hz voltage environment, and the electricity cost consumed in a year is about 0.49 yuan, while the electricity cost is about 0.37 yuan in a year when plugged into the socket in the voltage environment of 110V 60Hz.
Conversion efficiency test
A charger is essentially a conversion device, and there is a loss in the process, which is emitted in the form of heat; The charger tends to draw more power from the socket than the charger labels; The conversion efficiency test of Greenlink 30W small robot charger under the condition of 220V 50Hz and 110V 60Hz AC input is carried out respectively, and the test results are shown in the figure below.
Let's take a look at the conversion efficiency under 220V 50Hz voltage, the overall conversion efficiency is between 83.15-90.69%; Among them, the highest conversion efficiency is the 15V2A gear, with a conversion efficiency of 90.69%; The lowest conversion efficiency is the 5V3A level, with a conversion efficiency of 83.15%.
Let's take a look at the conversion efficiency under 110V 60Hz voltage, the overall conversion efficiency is between 84.46-90.88%; Among them, the highest conversion efficiency is the 15V2A gear, with a conversion efficiency of 90.88%; The lowest conversion efficiency is the 5V3A range, with a conversion efficiency of 84.46%.
On the whole, the conversion efficiency of the Greenlink 30W small robot charger under the two types of voltages is at the mainstream level among similar chargers, and the performance is good.
Ripple test
Due to the switching power supply used in the charger, the secondary output of the transformer is not direct current, and the output needs to be rectified and capacitively filtered, that is, there will be ripple in the output of the charger; The charging head network uses an oscilloscope to test the ripple value of the charger's output, and compares it with the industry standard to detect the output quality of the charger. The lower the ripple, the higher the output quality of the charger.
No-load ripple
First of all, look at the no-load ripple at 220V 50Hz, the highest ripple peak is 15V0A, and the ripple peak is 44mVp-p; The lowest ripple peak is 20V0A and 9V0A, and the ripple peak is 36mVp-p.
Let's take a look at the no-load ripple performance under 110V 60Hz voltage, the highest ripple peak value is 5V0A gear, and the ripple peak value is 42mVp-p; The lowest ripple peak-to-peak gear is 20V0A, and the ripple peak-to-peak is 32mVp-p.
On-board ripple
First of all, look at the on-load ripple at 220V 50Hz voltage, the highest ripple peak is 5V3A gear, and the ripple peak is 78mVp-p; The lowest ripple peak is 15V2A, and the ripple peak is 50mVp-p.
Let's take a look at the on-load ripple performance at 110V 60Hz, the highest ripple peak is 15V2A, and the ripple peak is 74mVp-p; The lowest ripple peak-to-peak gear is 9V3A, and the ripple peak-to-peak is 54mVp-p.
brief summary
YD/T 1591-2009 communication industry standard charger ripple requirements are not higher than 200mVp-p, green 30W small robot charger evaluation at 220V 50Hz, 110V 60Hz input voltage, all output power ripple peak value is not higher than 78mVp-p, overall performance is good.
Temperature test
The charger is a conversion device, and there will be loss during the charging process, which will be dissipated in the form of heat, so the charger will heat up. Greenlink 30W small robot charger evaluation supports up to 30W output, place the charger in a 25°C incubator, and collect the temperature on the surface of the charger after one hour with a 20V1.5A load.
First, let's see how the charger temperature behaves at 220V 50Hz voltage output.
After an hour, the maximum temperature on the surface of the charger captured with a thermal imager was 53.1°C.
The maximum surface temperature on the other side of the charger is 48°C.
Let's take a look at the temperature at 110V at 60Hz.
After one hour, the maximum temperature on the surface of the charger photographed with a thermal imager was 54.2°C.
The maximum temperature on the other side of the charger is 53°C.
Summarizing the temperature data into a table, it can be seen that when the charger is tested at two types of voltages, the temperature is 48-54.2°C when charging at 220V 50Hz and 110V 60Hz.
Drawing the data into a histogram, it can be seen that the maximum temperature of the output of the Greenlink 30W small robot charger at 220V 50Hz and 110V 60Hz voltage is 54.2°C, which meets the requirements of the IEC International Electrotechnical Commission IEC62368 for the temperature of electronic and electrical equipment in the test of electronic and electrical equipment, and meets the requirements of the new national standard GB4943.1 2022 for temperature.
Summary of the charging head network
Greenlink 30W small robot charger belongs to the "Flash Charge" series of products, the robot appearance is outstanding, the desktop is versatile, the expression will change when charging, and the design is full.
In terms of compatibility, it can provide ideal fast charging power for mainstream mobile phones, tablets, game handhelds or laptops on the market, improving the user's charging experience, and it takes 25 minutes to charge the iPhone 14 Pro Max to 50% and 2 hours and 20 minutes to charge to 100%.
In addition, the conversion efficiency of each gear is in the range of 83.15-90.88%, and the no-load and on-load ripple values are about 78mVp-p, and the output is more stable.
On the whole, the 30W small robot charger of Greenlink has a more novel design in appearance, with LED display of cute expressions, adding the meaning of trendy items to the traditional charger, and a variety of colors such as blue pink, white, and space gray give users more personalized choices; In addition, the use of gallium nitride materials also has a lower temperature performance in a small size, and users can also be more happy in daily charging.