During the National Day, the author took a fortune from his previous hard work and bought a fast charging head and USB charging cable for the Lenovo ZUK Z2 Pro exclusive version that was close to 3,000 yuan for a long time. You may think that the author is rather strange. Why does it take so long for the quick charging head and charging cable to wait? No way, had always wanted to wait for the opportunity to start Lenovo ZUK mobile phone, but unfortunately from Lenovo ZUK Z1 wait until Lenovo ZUK Z2 Pro, and then wait until Lenovo ZUK Z2, especially after experiencing Lenovo ZUK Z2, feel that the camera performance is not particularly satisfactory, The Hi-Fi experience was less than Lenovo's music lemon series, so it finally gave up the idea. Although chicken is not available, soy sauce can be used first. Lenovo's ZUK accessories are still excellent, such as the USB 3.0 Type-C cable in this article. As for the fast charging head, it is purely for the sake of reducing shipping costs.
During the National Day, Lenovo ZUK Online Mall discounted some of its products, including the two accessories mentioned in this article. The request for a free shipping fee is the original price of the shopping cart full of 98 yuan. Note that the original price is still very close. The original price of fast-filled headers and data lines add up to just over 98 yuan, so the freight is waived. Afterwards benefited from the reason of limited time, so the final price of 68 yuan to start.
Let's take a look at the unpacking section. During the National Day period, we will operate as usual. We will place an order from Lenovo ZUK official website and send it from the warehouse to different regions. Lenovo ZUK adopted SF Express for me this time, sincerity is still possible.
After opening the box, it is a protective foam. After the foam is removed, you see a bag containing the charger and data cable, and an electronic shipping list.
Lenovo ZUK packaging is still very simple, just as Slogan makes selection a little simple, similar to ZUI concise, once again like the freight calculation method, is the original price accounting instead of the discounted price, so can enjoy the full 98 yuan cargo exempt freight small benefits. Jingdong's self-operated products (non-diamond members) are 99 yuan free shipping, and Suning's self-operated products are 86 yuan free shipping. Today's electronic malls need to pay more or less for a single shipping fee, unless it's a single arrival. The author tried to just buy a data line and found that he actually had to pay 15 yuan for freight and he was distressed. Then he made a decisive move.
The front of the fuselage is nothing to say, I already heard Lenovo ZUK fast charging head specifications for the 5.3V/2.5A, but compared to the same use of the USB Type-C data cable plus a mobile phone 2 and music 1 charging rate is slower, The latter two's fast charging head specifications are only 5V/2A, according to reason Lenovo ZUK slightly advantage. The online experiment was conducted using a voltage and current capacity meter. It was found that the actual output power of the Lenovo ZUK was nearly half lower than the nominal value, while the Le1 was basically equal to the nominal value and was able to output about 10W of power. Below I will use another experiment to test Lenovo ZUK charging performance.
Lenovo ZUK started from Lenovo ZUK Z1 until today's Lenovo ZUK Z2 and Lenovo ZUK Z2 Pro, has always insisted on the distribution of USB 3.0 Type-C data cable, access to the computer above the USB 3.0 interface to transfer data, logically compared to your business model Can get a certain efficiency increase. The Lenovo ZUK Z2 Pro also uses UFS 2.0 ROM, with the USB 3.0 transmission specification can be a two-pronged approach, and ultimately get a good data transmission speed.
The packaging of the USB cable is special and it is a design that prevents secondary sales. After unpacking, the data cable and charger lie there quietly.
The first impression of pure white accessories is elegant. Lenovo ZUK's data line uses a noodle line design and also provides a cable tie.
Next, the author officially began to conduct some of the battery life test, mainly to test whether the fast charger in the rumor is really bad, and the nominal power and actual power are seriously inconsistent? In order to make readers enjoyable, I added a variety of models for rapid charge test, as shown in the following figure:
For the sake of fairness, we first ignore the first three records, because the battery capacity is much larger than the later model. The remaining 8 records are basically models with battery capacity of about 3000mAh. Based on the principles of safe power and protection of mobile phone batteries, the author will basically not exhaust the smartphone's battery power to 0% before he starts testing the battery life. In normal life, he also advises readers not to wait until they have no electricity before they start charging. The battery life of the mobile phone is not good. So I probably started to charge quickly when about 10% of the power is left in each model. At this time, all models will basically prompt the need to insert a charger. Among them, the charm blue metal's quick charger was borrowed to a friend, so he found a similar level of Meizu MX3 charger replacement.
As shown in the above figure, the test results show that Lenovo ZUK's fast charging head performance is really bad. I have no Lenovo ZUK mobile phone next to me, but I got a nubia phone and found that the result is not ideal. Compared with the original charger SLOW. Although the specifications of the original charger included in the nubia Z11 black gold version are higher, the performance in the database is not very good. It lags behind the millet phone 5, Lemax 2, and LG G5 that also use the Qualcomm Quick Charge 3.0 standard. . The Lenovo ZUK fast-filled performance should be an old saying, the low is not low.
Even worse, Lenovo ZUK's fast charging head has a nominal power of 5.3V/2.5A, which is higher than the faster chargers used by nubia Z9 Max Elite and Charm Blue Metal, but it is still defeated. But also lost to the larger capacity vivo Xplay5 and Samsung A9, really lost face lost home. Facts have proved that the statement on the Internet is correct. Lenovo ZUK's original fast charging head does have a large difference between the nominal power and the actual power.
Summary : Although Lenovo ZUK's original charger is not a competent accessory, but it is a good negative material, the author can occasionally use it as a negative example of comparative evaluation, which is my motivation to buy this accessory. The USB 3.0 Type-C data line today only demonstrates its performance in terms of charging. As for the performance of data transmission, it is necessary for the author to get a mobile phone using the USB 3.0 standard before further investigation is possible. There is no script at this stage, the actor is undecided, and the funds are insufficient.