There's a lot of mobile power
Mobile power is also called a chargeable beverage, a portable charger that collects and recharges together and can provide power to digital devices such as mobile phones at any time or on standby. Lithium cores or dry batteries are generally used as storage units. Distinguished from intra-product configuration batteries, also called hanger batteries. It is generally equipped with a variety of power connections, often characterized by large capacity, multi-purpose, small size, long life and security, and is a functional product that can be powered or recharacterized by a variety of digital products, such as mobile phones, digital cameras, mp3, mp4, pda, handheld computers, handheld games and so on. Mobile power sources are diverse in the market, but there are few mainstream types。
Standard mobile power supply
Common mobile power
An ordinary mobile power source with a charger function without any other extension. The advantage is that this type of charger has a large capacity and is well suited for specialized external power。
Functional mobile power
Functional mobile power
In addition to charging, more life-saving features have been added. For example, razor blades, recharging leds with strong light, routing, blue teeth。
Specialized mobile power supply
In general, it refers to specialized mobile power sources developed by manufacturers for high-end markets, which are integrated into data transmissions on usb lines, and are interconnected through the internal integration of cpus into specialized instruments (e. G., ear thermostats, blood pressurers)。
Solar mobile power
Solar mobile power
Mobile power sources with solar panels can be used to compensate for solar power recharge. This type of mobile power was previously used mainly in special forces and special industries. Civil use is now gaining ground as solar panels are converted。
Wireless mobile power
Wireless charge mobile power
A mobile power source with wireless sensor wires can be charged wirelessly in support of qi-standard mobile phones, which can be recharged easily by the user simply placing them in the area of the sensor wire。
Notebook mobile power
Notebook mobile power
The laptop battery is a large market, generally using 18650, generally using 4 sections, 6 sections, 8 sections, and the laptop output is 12 v voltage, which is currently used in very small quantities. As a rule, a laptop battery used the previous year was in decline, so it was very frequent to replace it. The replacement of a laptop battery is expensive, so the transfer of power is in fact a good alternative. Mobile power also supports mobile phones, which solves the problem with a mobile power。
Many brands now play functional cards, such as solar charge, wireless ap, etc. Such additional functions are very complementary to the functions of traditional mobile power, serving the needs of a small segment of the population and have its own value, although, for the time being, these products are more of a militancy, and most of the mainstream consumer demand on the market remains charging, and it is possible to speak of future product patterns or demand. The majority of what we see is the two types of mobile power that are commonly used to buy polymer and 18650。
The core is the highest cost of mobile power
Mobile power generally consists of four main components, comprising the core, the pcb circuit board, the shell and the data line, with the two most critical parts of mobile power: the core and the pcb plate. The core is the battery, and the pcb board is a part of the management of the charge. The cores are divided into two main types: polymers and cylinder lithium cores, with the most frequent use and the 18650 that we usually hear。
Mobile power is typically made up of four main components: core, pcb circuit boards, shell and data lines
The key to the quality of mobile power is the price of the core, which can be used for several years or less. Lithium hardcore and polymer lithium cores:
18650 lithium cores
Lithium cores of the cylindrical column are generally divided into 2000ma, 2200ma and 2600ma. The wholesale price of the plant is estimated at 2000ma/85, 2200ma/105 and 2600ma/13. 5。
Polymer electrocution core
The polymer core capacity and size can be customised at a wholesale price of approximately $6. 5/1000 ma (one year for the original a plant). If the price of 5000ma is 6. 5*5 = 32. 5 yuan。
Now the more common core cost of 1000 mah is around $5, so the core cost of 10,000 mah mobile power is $50, plus the costs of r & d, circuit boards, shell, etc., 10,000 mah can cost as much as 70. Even if large plants have upstream advantages, or personnel and shop costs advantages, then $60 is close to the limit。
10400 mah mobile power core cost between $48 and $60
A mobile power source of 10400 mah capacity, for example, usually uses 4 cores of 2,600 mah. At this point in time, it is possible to account for the cost of 18650 a core of a real samsung or lg of 2600 mah, which is about $12 to $15 depending on the quantity of the goods taken, and 48 to 60。
There's no bad electrical core with an insulation shield
The use of domestically produced cores, at relatively low cost, has become widespread. The most common problem with polymer electric cores is stock demurrage, which makes them inventory cores, but the most common problem is the proliferation of second-hand hard cores and ocean litter, which are more dangerous than inventory cores. The second-hand cost of a 2,600 mah is only a few dollars, and the use of such cores is undoubtedly the best means of reducing costs in the market for high-volume mobile power。
So here's a reminder for consumers not to ask for cheap, high-volume prices. I'm sure we all know that there's no lost business in the world, so we need to buy it rationally。
Poor-quality circuit boards are dangerous
In addition to the core, the pcb circuit board is another easy place to fake mobile power. An excellent pcb circuit board can cost dozens of dollars, while ordinary circuit boards tend to cost more than 10 times. For products with a large market capacity, but at a price of only a few dozen dollars, the design design that is usually used on pcb is less than five dollars。
Circuit board
1. Direct charger type: the equivalent of a cell phone charger, when plugged in, flushed, dialed off, and the power went out. The wholesale price of the plant was between $8 and $10。
Smart protection type: fluid, overload, overload, overload mobile phones. The wholesale price of the plant was between $12 and $15。
The pcb of the different programmes is different in terms of safety, stability and conversion efficiency, and low prices are certainly not as high as high, although they are not normally used. If some low-priced products were to be dismantled, and compared to some high-priced large brand products, the merits of the circuit boards could be seen。
Circuit board
A good circuit board maximizes the performance of mobile power, without which no accident can be avoided even with high-quality cores. At the same time, special and excellent circuit designs can protect the core, reduce losses and heat, and maximize the conversion of the core energy to output energy, while maintaining a steady flow of pressure. Moreover, high quality mobile power circuit boards can protect the charging of digital equipment such as mobile phones. The current mobile power circuit boards of the electric power plant are described in the same way: cpu, smart controls, multiple protections, etc., but in fact can be saved。
Formal brand mobile power circuits board
In the area of circuit protection, good circuit boards tend to support short circuits, transients, overpressures, overloads, overloads and other important protective functions, ensuring that neither in normal use nor in common irregularity can you create dangerous conditions。
Bad circuit boards don't have any security
In contrast to high-quality circuit boards, rapists naturally do not use good components, do not have tested designs for simple circuits, let alone co-opted thermometers. For example, the price of commonly used chips sold on the market would cost at least $8 more. However, in order to save money, some mobile power sources use only one pressurized chip (0. 7 yuan), only charging, and none else。
Shell: the general mobile power supply is based on abs/pc material. The cheap five dollars (e. G., common-sized buns), the more expensive six-seven dollars (+1 dollars with led lamps) and the few that require more than eight dollars are within ten dollars, which must be the second-oxidation aluminium alloy or other more expensive materials。
Mobile power shell
Line packaging: a usb line and eight data headers for wires in the mainstream market, with wholesale factory prices ranging from 4. 5 to $6. Packaging generally is 1. 5-2. 5. The aggregate price for liner packaging is between $6 and $8. 5。
Thread
Processing fees: a wage rent of between 1. 5 and 3. 5 yuan/per hour should be added to the electricity and water bill, calculated on the basis of the assembly of 1,000 units by four workers。
Mobile power
Here, only typical raw material prices of non-specific but qualified mobile power are calculated, which is not the case if you have other functions, such as led hands-on, wireless, dustproofing, voltage。
In short, using 10,400 mah's mobile power source as an example, we look at the price of the product out of different classes (only approximate, not all products):
(b) stock: wholesale prices of $25-$50 are generally available, which are characterized by impropriety and depravity, as evidenced by the minimum number of charges charged。
Miscellaneous: a wholesale price of $50-$70 can be obtained for this type of product, which is essentially new, but mostly b cores, and which are likely to be discounted for part of the core capacity. At the same time, most of their protected circuits are missing and detections are off, so costs can be reduced。
Branding: wholesale prices of $70 to $120 are generally available, with protected circuits, boosting circuits and charging circuits, high brand premiums and high prices。
Why is there a $10,000 ah mobile power supply of $59. 9
What's with the $10 000 mah mobile power supply at $59. 9? (camera from skycat)
If the upstream resources of a brand mobile power supplier are good, the price of 1,000 mah can be as low as $3, and the price of 10,000 mah will be $30, i. E. 2600 mah or $7. 8, less than $8, and it is possible that 10,000 mah mobile power prices will be down to $59。
Summary
There have been a number of explosions and burnings both within and outside mobile power sources, and b and second-hand power cores are the underlying causes of explosions and combustion. As consumers, recognizing the quality of products and the credibility of businesses, must not be greedy about purchasing uneconomically low-priced and expensive products. The higher the quality of the core, the higher the cost of its purchase by the manufacturer and, conversely, the lower the cost of the low quality core. However, if the cost of the core is lower and there is a bottom line below a certain limit, the quality of the core of the mobile power should be questioned。
Mobile power items at too low a price are not worth choosing, so is it better to say that the higher the price, the better? To measure the merits of a mobile power supply, the price is only one of the reference criteria and does not determine its quality entirely in terms of recharge performance, durability, safety, conversion efficiency, appearance, etc。
Of course, the cost of buying a mobile power source – a $100 mobile power source – may actually be blood-basketing, and the original cost of buying a 100-dollar mobile power source is only $70. It would be better if you didn’t look at the cost, or if you didn’t know it would be balanced, but the cost of buying anything is incomplete, brand product = cost + service, buying brand mobile power is not just their product, but it also includes other people’s services。
When many consumers see low-priced mobile power sources, they think that high-priced products are violent, and this article exposes you to the mystery of the cost of mobile power. If the price is lower than the cost accounting, then be careful that you buy a second-hand source。
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