From the 19th century 'Tesla Coil' to today's smartphones, wireless charging, which only exists in labs and textbooks, has finally entered our lives. As early as 2012, Nokia introduced a mobile phone that supports wireless charging. However, at that time, it was only used as a rarity to play. Until last September, Apple released three iPhones that support wireless charging. This made wireless charging simple and easy to go to the public. With the sense of pleasure, it brings a lot of convenience to life.
If you are using an Apple or Android phone that supports wireless charging, how do you choose a wireless charger that suits you? In the face of the market's exquisite wireless charger, whether it is official or third-party compatible Abandon the official brand belief, third-party compatible brands choose more, and it is easier to buy for themselves.
The Bulls recently launched a wireless charger that supports both Apple 7.5W and Samsung 10W fast charging. The price of the hundred yuan is very attractive. And Xiaomi also launched a support MIX 2S a few months ago. (7.5W) Fast charging wireless charger, at first glance, the performance parameters and price of the two are not much different. How to choose these two wireless chargers? The charging head network will bring you these two models. Wireless charger evaluation.
First, the appearance of the product first impression
Bull wireless charger model GNV-WA110U, millet wireless charger model MDY-09-EF, two wireless chargers are available on the e-commerce platform.
There are two different styles of outer packaging: Bull wireless charger is packed in drawer type color box, and millet wireless charger adopts heaven and earth cover box. In addition to the product picture and text information on the front of the Bull wireless charger box, the user knows at a glance What. And Xiaomi wireless charger front is relatively simple, look at the product picture may not know that this is a wireless charger.
The back of the bull wireless charger is also more detailed than the millet wireless charger, product features at a glance, and security code for users to check the authenticity. Xiaomi only marked the model behind, input parameters, whether to support Apple, Samsung mobile phone wireless charging, Ordinary users also need to query themselves.
The Bull Wireless Charger is black overall, with a gray anodized aluminum alloy on the edge, black rubber inside, metal enhances the overall feel of the charger, and rubber provides better touch and slip resistance. The Millet Wireless Charger is White, the entire upper surface is made of rubber material, with a strong sense of damping by hand, it can play a good anti-slip effect.
On the back, the Bull Wireless Charger uses PC material and is embedded with black silicone material. When it comes into contact with smooth surfaces such as glass coffee tables and ceramic tiles, it is not easy to slip. The millet wireless charger embeds a rubber ring in the PC material. Got the anti-slip effect.
Is the metal bull charger more heavy? We measure it.
The Bull Wireless Charger weighs 105.7g.
The millet wireless charger weighs 106.2g, which is very close.
The input parameters are marked on the bottom of the Bull Wireless Charger: 5V/2A, 9V/2A, output power 5W (5V input) /10W (9V input).
The millet wireless charger only labels the input parameters: 5V/2A, 9V/2A.
Both wireless chargers are printed with the 'Qi' logo on the back, indicating that both wireless chargers are 'Qi' certified, which is better compatible with charging devices, providing an efficient and secure wireless charging experience.
The Bull Wireless Charger uses the MicroUSB interface, which is currently widely used. The bottom groove can hide the connector of the MicroUSB cable, which is more beautiful when placed.
Xiaomi wireless charger adopts the increasingly popular USB Type-C interface, the interface is directly on the outside, and the plugging is smoother.
The Bull Wireless Charger indicator is located under a transparent acrylic and emits a circular arc of white light when in operation.
The millet wireless charger indicator works with only one green dot.
The two wireless thick and thin contrast, from the picture to see the bull is thinner. From the actual data, the Bull wireless charger is 12mm thick, the millet wireless charger thickness is 12.44mm, the difference is not big. The visual effect is thinner because The Bulls have a rounded design that is more pleasing to the eye.
There is a circle of cooling holes at the bottom of the Bull Wireless Charger, which can dissipate the heat of the wireless charger in time to ensure that the wireless charger works normally. Otherwise, the Millet Wireless Charger does not.
Second, the performance of the product depth experience
Bull wireless charger supports ordinary 5W, Apple 7.5W and Samsung 10W wireless charger, millet wireless charger supports ordinary 5W, their own millet MIX2S 7.5W charging and 9W charging power. We use wireless charging receiver board to test these two models Can the wireless charger reach the official promotion power?
The first is the Bull Wireless Charger. Putting the wireless charging receiver board to simulate the normal 5W charging, you can see that the voltage and current displayed on the digital tube are: 5.14V/0.83A, and the power is about 5W.
Putting the wireless charging receiver board to simulate iPhoneX charging, you can see that the voltage and current on the digital tube are displayed as: 6.4V/1.13A, the power is about 7.5W.
Place another wireless charging receiver board to simulate the Samsung mobile phone charging. You can see that the voltage and current displayed on the digital tube are 9.0V/1.09A, and the power is close to 10W.
Bull wireless charger output power is basically the same as the official promotion.
Let's test the millet wireless charger again.
Put on the wireless charging receiver board to simulate the ordinary 5W charging, the digital tube shows 5.05V/0.94A, the power is about 5W.
Put the wireless charging receiver board to simulate the 9W wireless charging of the Android phone. At this time, the digital tube displays 8.78V/1.05A, and the power is about 9W.
Since the 7.5W wireless charging of Xiaomi MIX2S is a proprietary protocol, it is not tested here.
From the simulation test, the charging power of both wireless chargers reached the declared value.
Of course, the above is only a simulation test result, the data is for reference only, what about the real mobile phone experience? We use iPhoneX and Samsung S8+ for 2-3 hours of charging test respectively, during the charging power of the wireless charger terminal, Cell phone charging temperature is counted.
Let's take a look at the power curves of the two wireless chargers for the iPhoneX input.
When charging the iPhoneX, we used the POWER-Z KM001 tester to collect the charging power for the first 2 hours and 30 minutes. The input power of the Bull wireless charger is about 10W, which is 7.5W charging mode, which lasts for 7 minutes. Left and right, then down to 5W normal charging mode, and the power fluctuates around 5W. Millet wireless charger does not support iPhoneX fast charging, the whole charging power fluctuates around 5W, 52 minutes power slightly decreases. After 2 hours and 30 minutes The power is reduced to 3W. In the first 7 minutes, the charging power of the Bull wireless charger is dominant, and then it is comparable.
Then charge the Samsung S8+, using the same method to record the charging power of the first 3 hours.
From the power curve, you can see that when charging the Samsung S8+, the Bull Wireless Charger supports Samsung 10W wireless charging. In the first 13 minutes, the wireless charger input power is 9W. After 13 minutes, the power drops to 5W. The Xiaomi Wireless Charger does not. Support Samsung S8+ to charge at 10W, the maximum input power of the wireless charger is 6W, and it drops to 4W after 40 minutes. In the first 3 hours, the power of the Bull wireless charger has always been leading.
In terms of temperature, we use the FILR ONE temperature gun to record data every 15 minutes.
Bull wireless charger charger iPhoneX maximum temperature is 40.6 ° C, charging end is 35.6 ° C. Millet wireless charger charger iPhoneX maximum temperature is 39.2 ° C, charging end is 35.4 ° C. In the first 160 minutes, the Bull wireless charger temperature than the millet wireless charging The temperature of the device is slightly higher, and then there is a mutual victory. Overall, the temperature of the iPhoneX is not more than 1 °C.
The Bull wireless charger is charged with Samsung S8+, the maximum temperature is 40.3 °C, the charging end temperature is 38.1 °C. The millet wireless charger is charged with Samsung S8+, the maximum temperature is 38.3 °C, the charging end temperature is 36.3 °C. The whole charging process, using millet wireless charging It is about 2°C lower than the temperature of the Bull Wireless Charger.
Whether it is charging iPhoneX or Samsung S8+, the Bull Wireless Charger is slightly higher than the Xiaomi Wireless Charger. On the one hand, the charging power of the Bull Wireless Charger is larger than that of the Xiaomi Wireless Charger, and the heat is also greater. On the other hand, the Bull is on the other hand. When the wireless charger is charging and the contact area of the mobile phone is large, it is not conducive to heat dissipation. The temperature of the two wireless chargers for iPhoneX and Samsung S8+ are within an acceptable range.
During daily use, we usually wear a protective case for the mobile phone. At this time, it is very important that the wireless charger supports 'remote distance' wireless charging.
We placed a 6mm thick small book on the Bull Wireless Charger and put it on the iPhoneX for normal charging.
Similarly, after placing the book, the Xiaomi wireless charger can also charge the iPhoneX normally.
It can be seen that the two wireless chargers support 'air-by-air charging', and the wireless charging mobile phone can be charged without removing the protective cover, which is more convenient to use.
In the evening, when we take a break, we will take the metal such as the ring and the key and put it on the bedside table. It may be placed on the wireless charger with a little care. For wireless chargers without metal foreign object detection, the wireless charger will continue to heat after the metal is placed. Metal, just like the iron pot on the induction cooker, until the wireless charger is burned through, causing a fire accident, must be brought to the attention.
We placed a 1 dollar coin on the bull wireless charger and put it on the iPhoneX. The slave picture shows that the bull wireless charger is stopped working.
Also placed a 1 yuan coin on the millet wireless charger, Xiaomi wireless charger also stopped working.
Both wireless chargers are in place in terms of security. Here to remind readers, when purchasing a wireless charger, you must choose to support the metal foreign object detection function.
When our mobile phone is charging wirelessly, it will inevitably receive WeChat messages, telephone calls, etc. At this time, the mobile phone vibration will deviate from the charging position, resulting in failure to charge. Both wireless chargers support the mobile phone anti-skid, let's test the anti-skid effect. Here we use a more intuitive way to tilt the wireless charger at a certain angle and put it on the phone.
The Bull Wireless Charger is slightly tilted at a certain angle, adjusted to the maximum without sliding angle, and the photo is recorded.
The millet wireless charger uses the same method. Since the front side is entirely made of rubber, the tilt angle can be made larger than the Bull wireless charger.
Usually, when people charge, everyone is generally flat on the desktop, not as extreme as the test, so the two wireless chargers can meet the daily use needs in terms of anti-slip properties.
Third, the summary of the use of the charging head network
The Bull Wireless Charger and the Xiaomi Wireless Charger are both at the price of one hundred yuan, but the style route is not the same.
The Bull wireless charger is made of rubber + silicone + PC + metal. The metal is anodized and the rubber is finely ground. This creates the excellent texture of the Bull Wireless Charger. The color is matched with black and gun gray. Against the background, it is neither monotonous nor exaggerated. Another obvious advantage is that black is more resistant to dirt than white, and it is almost invisible to some fine dust.
After several days of use, it was found that the Bull Wireless Charger has the following advantages: With the widely used MicroUSB interface, even if the standard charging cable is lost, the charging cable that was eliminated by the old mobile phone can be used, but the insertion and removal brings certain inconvenience. The work indicator light is placed in the lower part and is extinguished during normal operation. It can reduce the user's interruption during the evening break. The output supports 5W/7.5W/10W three-speed wireless charging power, which can be used for wireless charging mobile phones such as Apple and Samsung. Fast charging, for Apple, Android users can be very good, especially for small Apple, Android dual-user users, simply cool. Whether using iPhoneX or Samsung S8+ during the process, the heat is controlled at reasonable Within the scope.
Millet wireless charger uses rubber + PC material, feels good, can also play a good anti-slip effect, but the rubber material itself is easy to absorb dust, plus a white appearance, so it is extremely resistant to dirt, it will be dirty soon after use. The millet wireless charger uses the USB Type-C interface on the input end, and it is inserted once in place. The indicator light is a sesame-sized green dot in the case of indoor light, and it will never be glaring. The output also supports 5W/7.5. W/10W wireless charging power, but 7.5W and 10W do not have universality, 7.5W is only suitable for their own MIX 2S, 10W is not compatible with Samsung S8+, for iPhone users and Samsung users, you can carefully consider the purchase. In terms of fever, the millet wireless charger has a slightly higher charging power than the Bull wireless charger.
Overall, the two wireless chargers are very good. The Bull Wireless Charger has higher charging power, compatibility and high value. Especially for users with iPhoneX and Samsung S8+ mobile phones, you can choose the Bull Wireless Charger. If you only wirelessly charge the Xiaomi MIX 2S mobile phone without fear of stains, you can choose the Xiaomi wireless charger.
