
For every smart phone user, it should have been deeply felt the phone battery life is not enough trouble. At this time, having a mobile power source of your own is the best solution. However, there are a variety of products in the mobile power product market. In order to promote their products, manufacturers are constantly instilling various concepts into consumers. So, how can consumers rationally purchase mobile power in the indiscriminate bombing of this information? Below, the author and the number of the following fall in some of the common mistakes when buying mobile power (mobile charging Po).
Misunderstanding 1: Superstition detection report authority
Currently, there is no national unified certification standard for mobile power. By 2013, all brands' so-called test reports were negotiated and tested by third-party agencies and enterprises. Therefore, a test report does not necessarily mean that the product is qualified, at least from the analysis of the discharge curve, the most important technical indicator of the mobile power supply.
Misunderstanding 2: The bigger the mobile power capacity, the better
Since capacity is the most important parameter that affects the duration of mobile power usage, many people think that the larger the capacity of mobile power, the more time during this time, search for your mobile power on Taobao, and you can see that the previous capacity has Millions of mobile power sources have been weakly exploding, and 20,000 or even 30,000 milliamperes are frequently used. So, the bigger the mobile power, the better? More than 10,000 milliamperes of mobile power usually have 5 to 6 cells. We know that the capacity and volume of a mobile power supply are proportional to each other. The larger the capacity, the larger the volume must be. Therefore, according to their own needs when purchasing, if it is not frequent business trips, there is no need to take a “brick†everywhere and the market is still very serious phenomenon, bad manufacturers use high capacity to blind consumers. The actual capacity of the product is much lower than the marked capacity, so it is not unbelievable for these large-capacity mobile power supplies.
Myth 3: Product sales are good
Because of the price advantage, online channels are often the most attractive to consumers. We have seen that the highest-selling mobile power supply currently on Taobao has a common feature, which is its large capacity and extremely low price. This has also become a major factor for consumers to consider when purchasing. However, in reality, the quality of such a mobile power supply may not necessarily stand the test. Tianji.com once made a "Taobao Hot Mobile Power Hengping Review." Test results prove that there are various problems in this low-cost, high-capacity mobile power products. Therefore, at the time of purchase, it is not appropriate to blindly follow the network sales. To maintain a rational mind, try to select some brands that are well known to the general public. This will reduce the probability of problems.
Myth 4: Polymer batteries are safer than 18650 batteries
I believe many people have heard this saying: 18650 batteries are in danger of explosion. The worst case of polymer batteries is that they will catch fire and will not explode. Therefore, polymer batteries are safer than 18650 batteries. In fact, this is theoretically true, but the reality is not the case. The 18650 batteries are packaged in a steel shell that is not easily deformed. After a long period of development, the process is now very mature. For example, the 18650 batteries produced by Panasonic, Sony, Samsung and other international companies have stable discharge performance, stable battery life, and excellent circuit design to ensure safety. The probability of explosion is very low. Although the polymer battery is theoretically safer, it is due to the lithium ion paste inside the battery core, and the external use of aluminum plastic film packaging, soft texture, easy deformation, intolerance of collisions, so the technical difficulty is great. Manufacturers have high production requirements. At present, few domestic manufacturers can produce high-quality polymer batteries, and the overvoltage protection adopted by different manufacturers varies a lot. Therefore, in the domestic market, polymer batteries are not necessarily safer than 18650 batteries.
Misunderstanding 5: The more expensive the price is, the better the mobile power is.
As mentioned earlier, mobile power products with low prices are not worth buying, so is the higher the price, the better the quality? The price of mobile power products on the market today is very different, with a few tens of dollars cheaper, and expensive hundreds or even thousands of dollars. In fact, the cost of mobile power is not as high as we think, mainly including the battery, circuit board and housing in three parts, in general, the use of mobile power 18650 battery production costs lower than the polymer battery mobile power. The corresponding price range, the author here can give a reference to 10000mAH, for example, 18650 mobile power supply price is usually 200 to 250 yuan, while the mobile power of polymer batteries is usually 350 to 400 yuan. Of course, some mobile power sources with outstanding designs or a combination of functions will be more expensive. If it is combined with the brand effect, the price will be several times higher. To measure the merits of a mobile power supply, it is necessary to consider the charging performance, durability, safety, conversion efficiency, and appearance. The price is only one of them. Reference standards cannot completely determine quality.
Misunderstanding 6: Whether it will cause damage
Many friends are worried that the use of mobile power will cause damage to mobile phones and tablets. In fact, mobile power is the same as charging with our own adapters, such as mobile phone tablets, without causing any damage to the device. Of course, if you come across the poor mobile power of some small cottage factories, you will not be able to provide stable voltage and current for mobile phones and tablets, which will endanger these digital devices. Therefore, when buying mobile power, we must choose some manufacturers that are well-known to the public, so as to effectively protect the safety of the equipment.
Investment Casting, also known as lost wax casting, includes wax pressing, wax repairing, tree formation, paste, wax melting, casting metal liquid and post-treatment processes. Lost wax casting is the process of making a wax mold of the part to be cast, and then coating the wax mold with mud. After the clay mold is dried, melt the wax mold inside in hot water. Melt the wax mold out of the clay mold and then roast into pottery mold. Once roasted. Generally, a casting port is left when the mold is made, and then molten metal is poured into the pouring port. After cooling, the required parts are made.
Investment Casting,Lost Wax Casting,Steel Investment Casting,Stainless Steel Investment Casting
Tianhui Machine Co.,Ltd , https://www.thcastings.com