After reading the above articles, you may be This industry has a certain understanding. In fact, the mobile power supply is simple and complex, which is simple because its principle, structure and combination mode are easy to master and the access threshold is low. It only needs to assemble various components; The reason why it is complicated is that it is a complex project and knowledge to really do a good job of mobile power supply. Especially in the absence of industry standards, norms and benign competition mechanism, it is even more difficult to make a good mobile power supply.

Choose a mobile power supply? Xiaoji believes that the first thing is to determine the required mobile power capacity according to their own usage habits, then determine their own budget, and select a more stable and better quality mobile power within a reasonable range; Next, look at the technical parameters such as charging and discharging current, and finally look at the appearance. Choose your favorite style from several models with the same quality.

So, how to judge the quality of mobile power? We know that the cell is the most important core part of the mobile power supply. The quality of the cell directly determines the quality and stability of the mobile power supply. But the cell of the mobile power supply is wrapped in the mobile power supply. How should we choose? Small machine suggestions can be considered from the following perspectives:

1. Cell supplier

The manufacturers who choose famous brand electric core will take it as the focus of publicity. For example, BG Microplus as shown in the figure below uses ATL cell, which is the exclusive supplier of Apple cell. At present, iPhone, iPad, iPod and other products use ATL cell as the standard configuration. Suppliers that can be selected by Apple have good reputation.

[caption id="attachment_20448" align="aligncenter" width="680"] BG Microbus PowCore 3000mAh Mobile Power Supply with ATL Cell [/caption]

2. Mobile power storage medium

Compared with the 18650 lithium ion core, the polymer core is safer. In terms of performance, the polymer core with the same volume is 10% higher than the lithium ion core, and it is not as easy to be renovated and recycled as the 18650 lithium ion core. From these points of view, the choice of lithium polymer core is better than the 18650 lithium ion core.

How do you know whether the 18650 lithium ion cell or the lithium polymer cell is in the mobile power supply without disconnecting the power supply? In fact, there is a simple method. The 18650 cell has a fixed specification, with a diameter of 18mm and a length of 65mm. Generally speaking, the ultra-thin mobile power supply with a thickness of less than 18mm can only use a polymer cell. In addition, since the mobile power supply with 18650 cells is composed of one or more cells in series, the size of such mobile power supply is relatively regular, We can also use the approximate size of the mobile power supply to determine whether the 18650 lithium battery cell is used.

[caption id="attachment_20447" align="aligncenter" width="600"] It can be seen that this Sanyo Elop mobile power supply is composed of two 18650 cells, with a circuit board structure in the middle [/caption]

In addition, regarding the 18650 cell, Xiaoji will share with you a trick to determine the capacity virtual label: as mentioned above《 [3.15] Unknown means of mobile power supply 1: virtual label capacity 》The mobile power supply with the so-called capacity of 30000mAH mentioned in, judging from its appearance, uses six 18650 cells. Considering the high price of foreign brand cells, it can be confirmed that this mobile power supply must use domestic cells, and the maximum capacity of a single domestic cell is 2800mAH at present, Therefore, we can calculate that the maximum capacity of the mobile power supply is 6 * 2800=16800mAH, far less than the nominal 30000mAH, and the virtual sign is obvious.

Without knowing the product, choosing a brand product is the fastest way. At present, the mobile power market can be described as "a hundred flowers bloom". Some good brands have also taken a firm foothold, jumped out of the vicious circle of price competition, and through quality upgrading, form innovation and other means, to do a more segmented market, opening a new blue sea in the red sea of traditional mobile power, For example, RICOUS 3G wireless mobile power supply and LEPOW Jun mobile power supply, which attracts many literary and artistic youth with its appearance design, will not be listed here.

[caption id="attachment_20449" align="aligncenter" width="640"] RICOUS 3G wireless • mobile power and LEPOW Jun mobile power that attracts many literary and artistic youth with its appearance design [/caption]

It is normal for every manufacturer to pursue profits, but "a gentleman loves money and takes it in a proper way". Excessive pursuit of profits by manufacturers and excessive marketing will inevitably lead to a crisis of brand trust. Consumers can pay for your product once, but if the product is not effective, they will certainly not pay for your brand again. In particular, the word-of-mouth effect of product brands has been formed when consumers pass on their feelings of use through social platforms such as Weibo and WeChat. As a result, only by doing a good job of products, making products with characteristics and innovation, can we really be invincible in this industry.

Related articles:

[3.15] Unknown means of mobile power supply 4: safety protection

[3.15] Unknown means of mobile power supply 3: black cell

[3.15] Unknown means of mobile power supply 2: neglected conversion rate