preface
On March 17, 2022, redmi held a spring new product conference, released K50 Pro, K50, K40S, Redmi Book Pro 2022, Redmi Max 100-inch TV, AirDots 3 Pro Pro Original God Customized Edition and other new products, following the release of the K50 e-sports version equipped with snapdragon 8 mobile platform in February, the K50 universe mode was immediately opened, and the blockbuster products of this conference "K50 series" appeared, including K50 and K50 Pro two models.
The K50 is equipped with Tianji 8100 processor, TSMC 5nm process, A78 processor 2.85Ghz, G610 GPU, and the comprehensive performance score is 850,000. The battery part is the highlight of this time, reaching 5500mAh single cell, supporting 67W fast charging, 30 minutes to charge 80% of the power, the package distributed 67W charger and data cable. And the specific charging experience, the following is for everyone to expand in detail.
Unbox
On the front of the package is the golden K50 word, yes, it is also a member of the K50 universe.
The side is printed with this charging power and screen resolution, and the 2K screen is configured on the mid-range model, which can be said to be full of sincerity.
The package contains the mobile phone, charger set and instruction manual card pin, etc.
In terms of screen, the Redmi K50 series comes standard with a 6.67-inch 2K flexible straight screen, Samsung E4 luminous material, resolution 3200 X 1400, PPi reached 526. Supports DC dimming, 120Hz high brush, DCI-P3, HDR10/10+, Dolby Vision, and corning Gorilla Glass protection.
The K50 main camera also features OIS optical image stabilization and a 48MP Sony IMX582 sensor. The addition of OIS makes the K50 series have a good photo quality, the other two cameras are 2 million pixel macro lens + 8 million pixel ultra-wide angle, front camera 20 million pixels.
The phone does not add a charging acceleration option to the charging settings, after all, the power is maintained at 67W, and the slight heat is suitable for all ages.
The SIM card slot is designed at the bottom of the phone, and the USB-C interface is still the USB2.0 transfer speed.
67W fast charge
The package is distributed with 67W chargers and data cables, which are no strangers to everyone, and the charging experience of the flagship machine has also been delegated to the mid-range model.
67W USB-A charger
This charger has a white and smooth waist, and the transition between the sides is rounded, which makes it feel good to use.
The front and back of the fuselage are printed with the words 67W, Xiaomi Communications Co., Ltd., and Designed by Xiaomi. Pin-fixed design with one side layout.
The plug adopts fixed double-ended plugs for a more stable plug.
The USB-A port at the output is also arranged on one side, with an orange-red rubber core.
Widened pins on both sides and extra contacts for identifying the protocol can be seen, which is also the secret of its support for the PD protocol.
The input housing is printed with charger parameters
Model: MDY-12-EF
Input: 100-240V~50/60HZ 1.7A
Normal output: 5V3A
Fast Output: 5-20V/6.2-3.25A (67W Max)
The charger has passed 3C certification.
The height of the fuselage is 55.77mm.
The width is 49.16mm.
The thickness is 27.83mm, the size of the charger is about 55.77×49.16×27.83mm, the volume is about 76.3cm, and the power density is about 0.85W/cm in 65W power calculation, which is a good performance.
The side width of the charger is similar to that of a one-dollar coin.
Compared with the Apple 67W charger, it has a great advantage in volume.
Net weight is approximately 99.4g.
Intuitive feeling in the hand.
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.
The measured charging power for the notebook can reach about 54W, and the compatibility is quite good.
Magic modified 6A A2C fast charging line
The included charging cable is the familiar A2C interface configuration.
The one-piece injection molded terminals and extension tails are easily distinguished by the word 6A on the tails.
Classic Xiaomi orange core with extra pins visible inside.
A close-up of the USB-C male, usb 2.0 data transfer specifications.
The length of the thread is approximately 105 cm.
battery
The ultra-large capacity battery gives the K50 up to 1.32 days of battery life, far exceeding the 2K screen models of the same class, and even longer than many 1080P models.
This 5500mAh lithium battery does not use a dual-cell design, and the manufacturer is from Dongguan New Energy. The battery adopts the polar ear center (MMT) process, in simple terms, during the battery charge and discharge process, the polar ear is the "water pipe" through which the current passes. The traditional lithium battery ear design is on both sides of the battery, and the internal resistance of the battery is large, which improves the power loss during charging and discharging, and intuitively manifests itself as a hot and frequency reduction for mobile phones.
The MMT process reduces the transmission path of the current in the battery, and cooperates with multi-pole ear technology to further reduce the internal resistance of the battery and improve the charging power. This is also a relatively mature battery process in recent years.
Charging evaluation
At present, the K50 series has released K50, K50 Pro and K50 e-sports version of the three models, as far as the recently issued K50 and K50 Pro, in the fast charging and battery life of different solutions. K50's 5500mAh single cell plus 67W fast charge and K50 Pro's 5000mAh single cell plus 120W fast charge (in 2022, you can see the combination of 5500mAh plus 67W high-power fast charging on mobile phones is rare).
The K50 endurance introduced at the press conference can reach 1.32 days, which really adjusts everyone's appetite, and the endurance of the K50 after the conference has also been praised by various media, coupled with the configuration of 67W fast charge, it can be said that there is almost no short board in terms of endurance.
However, in terms of charging, I believe that everyone is most concerned about the fast charging compatibility of other chargers in addition to the original 67W fast charging?
After all, on the xiaomi official website, fast charging products have four categories: chargers, wireless charging cradles, car chargers and mobile power supplies.
And the category of fast charger alone... There are many fast charging heads that can be selected, which is a good thing for users, and it is good to choose a spare set of fast charging directly to xiaomi mall. Before purchasing, it is necessary to look at the compatibility of different power fast charging heads for the fast charging of Redmi K50, let's take a look at it.
Xiaomi series charger compatibility test
The fast charging system is determined by the mobile phone, the cable, and the charger, and all three are indispensable. Since it is for the fast charging compatibility of mobile phones, the role to be changed is naturally the charger and cable, let's first look at how different chargers are compatible with the fast charging of Redmi K50.
The charger compatibility of this time selected the millet fast charging family of different power charger to participate in this time, the above white model from left to right is Xiaomi 33W Gallium Nitride charger, Xiaomi 55W A gallium nitride charger, Xiaomi 65W Gallium Nitride charger, Xiaomi 50W charger, Xiaomi 67W small pudding charger, Xiaomi 67W A-port charger, Xiaomi 90W charger, Xiaomi 120W Gallium nitride charger and Xiaomi 120W A-port charger. The black version is the Zimi 33W Gallium Nitride charger and the Zimi 65W charger.
Use the Xiaomi Mi 33W Gallium Nitride charger with the C2C fast charger to charge the Redmi K50 with a power of 8.08V 2.82A 22.84W.
Using the Xiaomi 55W Gallium Nitride charger with the original A2C fast charger to charge the Redmi K50, the power is 8.52V 5.09A 43.64W.
Use the Xiaomi Mi 65W Gallium Nitride charger with the C2C fast charger to charge the Redmi K50 with a power of 8.66V 5.16A 44.73W.
Use the Xiaomi Mi 50W AD651P charger with the C2C fast charger to charge the Redmi K50 with a power of 8.67V 5.04A 43.73W.
Using the Xiaomi 67W Small Pudding Gallium Nitride charger with the C2C fast charger to charge the Redmi K50, the power is 8.92V 6.19A 55.32W.
Use the Xiaomi Mi 67W charger with the original A2C fast charger to charge the Redmi K50, with a power of 8.93V 6.25A 55.89W.
Use the Xiaomi Mi 90W charger with the C2C fast charger to charge the Redmi K50 with a power of 9.13V 1.48A 13.51W.
Use the Xiaomi 120W Gallium Nitride charger with the C2C fast charger to charge the Redmi K50 with a power of 8.97V 6.12A 54.97W.
Use the Xiaomi Mi 120W charger with the original A2C fast charger to charge the Redmi K50, with a power of 8.91V 6.14A 54.83W.
Use the Zimi 33W Gallium Nitride charger with the C2C fast charger to charge the Redmi K50, the power is 8.22V 2.82A 23.27W.
Here will be a few chargers participating in the test and the data of the cable with the Redmi K50 charging data is summarized for easy viewing.
Organize the data into a histogram to facilitate everyone to see the level of specific charging power.
brief summary
This time using some chargers of Xiaomi and Purple Rice to participate in the test, from the test results, basically as long as the charger is close to the release time can trigger Xiaomi's private high-power fast charge. The Redmi K50 supports up to 67W fast charging, and the actual charging power is up to about 56W.
Charging compatibility test for other Xiaomi series accessories
I have already seen the fast charging compatibility of Xiaomi charger for Redmi K50, let's take a look at the fast charging compatibility of other charging accessories.
Using the C1 interface of the Zimi No. 20 charging treasure and the C2C fast charging cable to charge the Redmi K50, the power is 8.75V 4.96A 43.47W.
Using the C3 interface of the Zimi No. 20 charging treasure and the C2C fast charging cable to charge the Redmi K50, the power is 8.51V 3.9A 33.26W.
The A2 interface using the Zimi No. 20 charging treasure is used with the original A2C fast charging cable to charge the Redmi K50, and the power is 8.96V 5.87A 52.61W.
Using Xiaomi 100W car charging USB-A with the original A2C fast charging cable to charge the Redmi K50, the power is 8.92V 1.15A 10.3W.
Using xiaomi 100W car charging USB-C with 5A C2C fast charging cable to charge the Redmi K50, the power is 8.77V 4.97A 43.64W.
Using the Xiaomi Power Bank 3 Super Flash Charge Edition C2 with the 5A C2C fast charge cable to charge the Redmi K50, the power is 8.72V 4.79A 41.82W.
Using Xiaomi Power Bank 3 Super Flash Charge Version A1 with the original A2C fast charge cable to charge the Redmi K50, the power is 9.03V 1.15A 10.45W.
Here is a summary of the data of other charging accessories for the Redmi K50 charging, which is convenient for everyone to view.
The histogram can clearly see the level of the charging power of the different accessories for the Redmi K50.
Other charging accessories for the Redmi K50 charging compatibility test down found, or follow a truth, support Xiaomi series private high-power fast charging interface for The Redmi K50 charging can basically trigger high-power charging. The reason why it is divided into different interface tests is that it is hoped that users can look for high-power fast charging interfaces when using them, so as to avoid the same product from triggering high-power fast charging due to different interfaces.
Third-party charger compatibility testing
Xiaomi's charger and other charging accessories compatibility tests have been completed, let's take a look at the compatibility of third-party chargers for Redmi K50 fast charging. Here, several chargers from 20W to 100W were mainly selected to participate in the test.
Use the Anchor 20W charger with the C2C fast charger to charge the Redmi K50 with a power of 8.87V 1.53A 13.66W.
Use the Apple 20W charger with the C2C fast charger to charge the Redmi K50, the power is 8.98V 1.61A 14.51W.
Use the Apple 30W charger with the C2C fast charger to charge the Redmi K50, with a power of 8.98V 1.5A 13.47W.
Use the Apple 61W charger with the C2C fast charger to charge the Redmi K50, with a power of 8.98V 1.69A 15.22W.
Use the TEGIC 30W charger with the C2C fast charger to charge the Redmi K50 with a power of 8.58V 2.95A 25.33W.
Using a Nubian White 65W Gallium Nitride charger with C2C fast charging cable to charge the Redmi K50, the power is 8.68V 3.02A 26.17W.
Use the realme 50W Gallium Nitride charger with C2C fast charger to charge the Redmi K50 with a power of 8.48V 2.66A 22.60W.
Using a flash pole 65W Gallium Nitride charger with C2C fast charger to charge the Redmi K50, the power is 8.68V 3.18A 27.66W.
Using a flash pole 100W Gallium Nitride charger with c2C fast charger to charge the Redmi K50, the power is 8.97V 1.54A 13.89W.
Using an AOHi 100W Gallium Nitride charger with a C2C fast charger to charge the Redmi K50, the power is 8.9V 1.72A 15.37W.
Here is a summary of the data of the third-party charger charging for the Redmi K50, which is convenient for everyone to view.
The histogram section can clearly see the power level of each charger.
For third-party chargers, several chargers selected can provide fast charging for The Redmi K50, but there is a gap in power, and some chargers that only support PD fast charging are about 15W for the Redmi K50 charging power, and other chargers are up to about 27W. If you want to achieve high-power fast charging for the Redmi K50, you still need to look at the fast charging accessories of the Xiaomi series.
Fast charge line compatibility test
The above compatibility test is all for the charger, using different chargers with the original line to charge the Redmi K50, let's take a look at the compatibility test for the fast charging line.
The interface of the Xiaomi fast charger family has two specifications, USB-C and USB-A, even two chargers with the same power have A and C ports. The above two chargers are 120W chargers launched by Xiaomi, both support Xiaomi and some models of Redmi 120W fast charging, but the interface has the difference between USB-A and USB-C.
Since it is a private fast charge, the wire is naturally private. The C2C fast charging line on the left side of the above figure is the Xiaomi 6A fast charging line, and the second is the Xiaomi 6A A2C cable, both of which support Xiaomi's private high-power fast charging. The compatibility test part of the cable is aimed at Xiaomi's A2C and C2C cables. Let's see if switching the two lines to the conventional A2C fast charging line on the right and the 5A C2C fast charging line will have an impact on the final fast charging power.
Use the Xiaomi 120W Gallium Nitride charger with the regular 5A C2C fast charger to charge the Redmi K50 with a power of 9.27V 5.11A 47.44W.
Use the Xiaomi Mi 50W charger with the regular 5A C2C fast charger to charge the Redmi K50 with a power of 9.25V 5.08A 46.9W.
Using the Xiaomi 67W Gallium Nitride charger with the regular 5A C2C fast charger to charge the Redmi K50, the power is 9.3V 5.12A 47.71W.
Use the Xiaomi Mi 90W charger with the regular 5A C2C fast charger to charge the Redmi K50 with a power of 9.23V 1.49A 13.79W.
Using a Xiaomi 33W Gallium Nitride charger with a regular 5A C2C fast charge cable to charge the Redmi K50, the power is 8.52V 2.8A 23.92W.
Use the Xiaomi 55W Gallium Nitride charger with a regular A2C fast charge cable to charge the Redmi K50 with a power of 9.03V 1.14A 10.29W.
Use the Xiaomi Mi 67W charger with a regular A2C fast charger to charge the Redmi K50 with a power of 9V 1.13A 10.25W.
Finally, the Xiaomi 120W charger is used with the conventional A2C fast charger to charge the Redmi K50, with a power of 8.99V 1.13A 10.25W.
Here the compatibility test data of the fast charging line is summarized, and the first column of wire in the table is non-original wire, followed by the charging power with non-original wire cable. In addition, there is a second row of wires, all of which are 6A specifications, that is, the original fast charging line, followed by the corresponding fast charging power.
From the histogram part, it can be clearly seen that the charger with the original cable and the non-original cable are charged for the Redmi K50. Orange is the original wire, blue is the non-original wire.
The charger participating in the test is only Xiaomi's 90W charger because of the early release time, does not support Xiaomi's private high-power fast charging, whether it uses the original line or non-original line, the power basically supports the conventional PD fast charging level.
In addition, Xiaomi 120W, 67W, 55W charger support Xiaomi private high-power fast charging, all use USB-A output interface, you can see that these three chargers switch to different cables after the power gap for Redmi K50 charging is larger, this is because after switching to conventional A2C cables, the internal can not trigger fast charging communication, so the power is greatly discounted, and the impact of fast charging is greater.
The Xiaomi 67W Gallium Nitride, Xiaomi 50W, Xiaomi 120W Gallium Nitride and Xiaomi 33W Gallium Nitride Charger are all USB-C output interfaces, and the charging power after changing the fast charging cable is not very large compared to the original cable. This is because the original line can carry 6A of large current through, while the non-original C2C fast charging line participating in the test can only transmit 5A current, but it is still in the fast charging state.
Full test of charging
After the above tests on different chargers, car chargers, charging treasures, and cables, I believe that everyone has a detailed understanding of the data of Redmi K50 in terms of charging compatibility. However, if you want to know the data changes in the charging process or look at the data measurement of the whole charging process, the following enters the main topic.
From the compatibility test section above, it can be known that the Redmi K50 will be limited to about 15W for chargers that only support PD fast charging. The actual charging process test is indeed so, the above figure is the use of Apple 20W PD charger with C2C fast charging line for the Redmi K50 charging process of the data changes, the whole process is roughly divided into 2 stages, in 2 hours 18 minutes charging end, the highest power of 8.78V 2A 17.6W.
This is the use of Xiaomi 33W Gallium Nitride charger with C2C fast charging line for the Redmi K50 charging process of the whole data change, the whole process is roughly divided into 2 stages, charging ends in 1 hour and 15 minutes, the highest power is 9.33V 2.82A 26.34W.
This is the data change of the whole process of charging the Redmi K50 using the original 67W fast charging set, the whole process is roughly divided into 5 stages, and the maximum power is 9.12V 6.28A 57.3W.
The three charging processes are plotted and compared together, Apple 20W, Xiaomi 33W gallium nitride and the original 67W respectively represent the results of charging the Redmi K50 by three different power band chargers.
Let's start with the charging speed
Half an hour time point, Apple 20W charger charged 28%, Xiaomi 33W Gallium Nitride charger charged 40%, original 67W charger charged 73%;
At 1 hour time point, Apple 20W charger charged 55%, Xiaomi 33W Gallium Nitride charger charged 94%, the original 67W charger has been fully charged;
Fully charged, the Apple 20W charger takes about 2 hours and 18 minutes, the Xiaomi 33W Gallium Nitride charger takes about 1 hour and 14 minutes, and the original 67W charger takes about 1 hour.
The test of the whole charging process ended here, and it can be seen from the charging curve that in order to get the best fast charging experience, the original 67W package is indispensable. The configuration of the Redmi K50 endurance is 5500mAh plus 67W fast charge, after all, there is also 120W of Pro Big Brother on it, and it is also a bit noisy on 120W directly. However, in terms of battery capacity, compared with Pro Big Brother, it is 500mAh more, so compared to Pro, the configuration of Redmi K50 in terms of battery life is actually not much different from Pro Big Brother.
Speaking of fast charging, in fact, for users holding Redmi K50, they want to choose a spare charger to go directly to the Xiaomi mall to choose, after all, the Xiaomi 67W fast charging suit is only more than 100 yuan. And half an hour of charging 73% of the results, for the K50 with 5500mAh, a day is basically not a big problem, after all, the battery base is there.
Charging head net summary
Although positioned as a mid-range machine, this Tianji 8100 even surpassed the Snapdragon 8 Gen1 in CPU performance... It can be said that with the entry-level price, experience the chip performance of the flagship machine, which is really fragrant for the game party.
Although there is no Pro's 120W charge, the endurance of up to a full day is better for travel, the experience is better, with a more power-saving 5G baseband, rest assured that it can be used outside.
Redmi K50 comes standard with a 67W charging kit, although the charger is a USB-A interface, but with Xiaomi's magic data cable, support 65W PD charging, a charger for the notebook, mobile phone back to blood, environmental protection is implemented; the actual test with the original charger, an hour can be full of mobile phones, then this K50 with 5500mAh capacity do you still like?