preface
On December 29, 2021, Xiaomi released a new 67W charger - 67W GaN small pudding charger set, which is different from Xiaomi's old USB-A magic 67W charger.
Compared with the three generations, this generation of 67W Gallium Nitride charger once again controls the volume to the extreme, the four corners of the large arc transition, the perception and the market common tough bar column charger has a big difference, support Xiaomi private fast charging protocol, so that it has become the favorite of Xiaomi mobile phone users. The USB-C output interface makes everyone look forward to its versatility, and then we will test it for everyone.
Product introduction
The Xiaomi Mi 67W Gallium Nitride charger contains a data cable, and the product packaging continues Xiaomi's consistent tonality.
Open the package and contain a 6A cable and charger body, the charger is covered with a protective film.
The Xiaomi Mi 67W Gallium Nitride charger has a white glossy side on the side and a gray matte interface surface, which is a bit similar to the charger that comes with the Xiaomi mobile phone.
The 67W print on the side is printed.
The USB-C interface adhesive tongue must be the ancestral orange of Xiaomi, and the workmanship has nothing to say.
Fixed pin design, double foot GB plug.
The bottom is printed with product specifications, the charger model is MDY-13-ES, supports broadband voltage input, the highest output is 67W, and supports Xiaomi's unique 11V6.1A gear.
The length of the Xiaomi Mi 67W Gallium Nitride charger is about 50.37mm.
The width is approximately 31.94mm.
The height is about 32.08mm, the size of the charger is about 50.37×31.94×32.08, the volume of the charger is about 51.61cm, calculated by the charger power 67W, the power density is about 1.29W/cm, to know that this is an arc-side design, the actual power density is even higher.
The weight of the charger is about 84.7g.
Held in the palm of your hand, this volume control is amazing.
Compared with Apple 67W, Apple is more than twice as large, and it seems that as a charger, Xiaomi is professional.
Compared with the previous 67W USB-A interface charger of the same series.
For convenience and out-of-hand use, Xiaomi also comes with a 6A data cable.
C2C interface configuration, support Xiaomi's 6A fast charging protocol.
The word 6A at the end of the extension line is convenient for users to make a distinction.
The length of the wire is approximately 153cm.
Support 6A, naturally also built-in E-Marker chip, compatible with PD 100W charging power.
Product reviews
After introducing the appearance size of the Xiaomi Mi 67W Gallium Nitride charger, I will take a look at the specific experience of this charger. The charging head network will take everyone to understand this charger from the aspects of protocol test, compatibility test, charging test, standby power consumption test, etc.
Protocol testing
In terms of protocols, ChargerLAB's POWER-Z KT002 reads the charger's fast charging protocol, and the actual test supports charging protocols such as QC2.0, QC3.0, and PD3.0.
In terms of PDO messages, it supports four fixed voltages of 5V3A, 9V3A, 15V3A and 20V3.25A
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.
Charge the iPhone 13 Pro Max at approximately 9V 2.88A 25.96W.
Charge the Xiaomi Mi 12 Pro with approximately 16.69V 3.1A 51.88W.
Charge the Redmi Note11 Pro+ with approximately 16.59V 3.46A 57.42W.
Charge the Xiaomi Mi 11 Pro with approximately 8.63V 4.92A 42.53W.
Charge the iPad Pro at approximately 14.78V 2.03A 30.01W.
Charge the MacBook Pro 16 2021 at approximately 19.16V 3.21A 61.66W.
Powering the Switch TV base and successfully triggering TV mode, the power is about 14.96V 0.3A 4.57W.
Charging for the Switch OLED version, the power is about 14.87V 1.08A 16.19W.
Full test of charging
The whole test of charging chose to charge the Xiaomi Mi 11 Pro, and the following is the measured data.
The above figure shows the data changes of the whole process of using the Xiaomi Mi 67W Gallium Nitride Fast Charge Suit for the Xiaomi 11 Pro, and the overall power change is a stepwise decline, which is divided into 5 stages and ends at 51 minutes.
Drawing the whole charging process into a curve, it can be seen that the fast charging set charges the Xiaomi Mi 11 Pro for half an hour to 42%, 72% for 1 hour, and it takes 51 minutes to fully charge.
In addition to the Xiaomi Mi 11 Pro, this time also added a full test of the redmi Note11 Pro+.
The above is the data change of the whole charging process using the Xiaomi 67W Gallium Nitride set for the Redmi Note11 Pro+, the whole process is divided into 4 stages, and the charging ends at 26 minutes and 18s.
The whole charging process is drawn into a curve chart, and the curve of the Original 120W Charger of the Redmi Note11 Pro + is added to the curve, the Xiaomi 67W Gallium Nitride Set charges 30% for the Redmi Note11 Pro+ in 5 minutes, 75% in 15 minutes, and only takes 26 minutes to fully charge.
If you look at the whole charging process, the Xiaomi 67W Gallium Nitride suit is only 5 minutes less than the original 120W, but the data gap between 5 minutes and 15 minutes is large. Overall, the Xiaomi Mi 67W Gallium Nitride suit is still very suitable for users of the Redmi Note11 Pro+ to choose the second set of fast charging suits.
In view of the fact that the Xiaomi 67W Gallium Nitride charger not only supports xiaomi series fast charging, but also compatible with 65W PD fast charging, this time it has also added a charging test for notebook computers.
The picture above is the data change throughout the charging process for the MacBook Pro 16 2021 using the Xiaomi Mi 67W Gallium Nitride kit, which is roughly divided into three stages and ends in 2 hours and 36 minutes.
Drawing a graph of the whole charging process, it can be seen that it takes 27% of the laptop to charge in half an hour, 53% for 1 hour, and 2 hours and 36 minutes to fully charge.
Standby power consumption test
If the charger is often plugged into the socket and not used, it will consume power, but it is very small. 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 0.06W, converted to a year's loss of power is about 0.52KW·h, if the market price of electricity is 0.6 yuan / KW·h, the charger's annual electricity cost is about 0.31 yuan.
110V 60Hz no-load power consumption is 0.04W, in translation, a year of loss of electrical energy is about 0.35KW·h, if the market price is 0.6 yuan / KW·h, the charger's annual electricity cost is about 0.31 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 power from the socket is often larger, 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:
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 four gears, and the conversion efficiency of the available charger varies from 87.73% to 91.39% by calculation.
At 110V 60Hz, the conversion efficiency of the charger varies from 87.89% to 90.27%.
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.
This is the use of the charger at 220V 50Hz AC input ripple test, ripple test is divided into no load (Y axis current in the histogram is 0A) and heavy load (histogram in the Y axis current is not 0A) two kinds, the highest is 82mVp-p, the charger is in 5V3A output; the minimum is 20mVp-p, the charger is in the 15V0A no-load state.
At 110V 60Hz, the maximum is 98mVp-p, the charger is at 20V3.25A output, and the minimum is 16mVp-p, and the charger is at 20V0A no-load.
Ripple test summary
The charger ripple requirement in the national standard is not higher than 200mVp-p, Xiaomi 67W Gallium Nitride charger at 110V 60Hz, 220V 50Hz input voltage, all output power ripple peak-to-peak are lower than 200mVp-p this standard, good performance.
Temperature testing
Xiaomi 67W Gallium Nitride charger in addition to supporting 67W Xiaomi series fast charging, but also compatible with 65W PD fast charging, very friendly for Xiaomi series fast charging users. The temperature rise test condition is to let the charger continuously output the temperature of the charger surface at a full load output of 20V3.25A 65W for 1 hour, and the test is based on a 25°C incubator.
The first is the test data under 220V mains conditions.
The maximum temperature of the charger surface after 1 hour is 73.4 °C when photographed using a thermal imager.
The maximum temperature on the other side of the housing is 69.9 °C.
Let's look at the temperature of the 110V voltage input.
The maximum temperature at which the charger surface was photographed using a thermal imager after 1 hour was 79.9 °C.
The maximum temperature on the surface of the housing on the other side is 85 °C.
Full load stability test
After long-term use, will the charger be reduced due to overheating? The charging head network also tested the Xiaomi Mi 67W Gallium Nitride charger.
The charger gear is adjusted to 20V3.25A, with 65W power continuous output for one hour, the voltage and current during the test are horizontal and straight, there is no obvious fluctuation, and the use of full load for a long time is also quite stable.
Charging head net summary
Xiaomi once again showed a skill in charging, whether it is the fast-charging chip surging P1 equipped with Xiaomi 12 Pro, or this 67W Gallium nitride charger, in the mobile phone manufacturers, accessories do the best... Xiaomi 67W Gallium Nitride charger makes up for the power of 67W, the user does not have the dilemma of USB-C charger optional, for the user launched a private protocol and PD protocol I all want the product, the accompanying 6A line is also well considered for the user.
Xiaomi Mi 67W Gallium Nitride charger supports QC2.0, QC3.0 and PD protocols, four PD voltage levels and 11V6.1A private protocol files, support 67W maximum output, 65W PD output, mobile phones or notebook users, this one covers all, if there is no need for multiple devices to charge at the same time, then choose it is not wrong.