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What methods can effectively avoid the danger of short-circuiting the mobile phone charger?

February 15, 2019 by keikeilaiy  

If the charger has problems, it is mostly because you bought an improper charger or a universal charger, or you have not used the original charger to charge, so there will be dangerous problems such as short circuit of the charger. So which methods can effectively avoid dangerous situations such as short-circuit of the charger? The original phone charger wholesale manufacturer simply sorted out the following points for everyone:

1. Causes of excessive voltage and current

The short-circuit burn of the mobile phone charger may also be caused by a socket with too high voltage or an excessive external current. If the external current is too large, it may cause short-circuit of the output of the power supply overcurrent protection or short circuit of the input. Therefore, it is best to use a suitable voltage socket for charging when charging.

2. Buy original charger

The need to buy the original charger and use the original model mobile phone charger. In a mobile phone store, the owner came up with a mobile phone charger with no brand, no certification, no instructions. When the reporter questioned its safety performance, the owner simply said, "If you are afraid of an accident, you will buy the original one. The cheap ones must have cheap reasons."

3. Must choose 3C certified products

It is understood that “3C” is a unified mark for the use of compulsory product certification by the state. The certified power adapter meets the national mandatory standards for electrical safety and electromagnetic compatibility. These chargers are full of materials, mature technology, and have multiple protections such as overcurrent, overvoltage, short circuit and overtemperature.

At the same time, during the use, such chargers have high charging efficiency and safety. The true and false of the "3C" logo can be found on the website of the National Certification and Accreditation Administration. This will avoid the possibility of buying a fake charger.

Which methods can effectively avoid the danger of short-circuiting the charger? As long as you follow these points, I believe that you can avoid these dangerous situations to the greatest extent possible. In addition, we must remind you that when you purchase the charger in the later stage, and also follow these safety principles when using it, you can certainly avoid many dangers.

Is there a difference between USB interface charging and USB charger charging?

December 24, 2018 by keikeilaiy  

Nowadays, there are USB interfaces on many devices, and some users use this interface to charge the device without the charger or the phone charger being inconvenient. Although many times, this can also have a certain effect. However, it must be known that this charging effect is very different from that of the switching power supply. This is mainly because the various devices are different, and the specific devices are different in the existence of different power supply systems.

The most common host interface is the USB interface. On this interface, you can generally charge and copy data to your phone's memory. The USB interface of the standard desktop is powered by +-12V. It can be seen that the difference between the power supply and the standard charger is large, but the actual mobile phone charging process did not find the abnormality of the mobile phone. We found that the mobile phone can still complete the charging. Why is this? In fact, it is very simple, because the mobile phone There is also a certain step-down protection measure inside the computer. When charging on the USB interface of the desktop computer, the internal voltage reduction measures of the mobile phone are also activated. It can complete the conversion of power similar to the USB charger, but it should be known. Because the space inside the mobile phone is very small, it is said that this part of the circuit is very imperfect. Once such a long time of charging, there will still be certain problems. For example, some users find that the mobile phone is very hot during the similar charging process. . This is not the development of the battery, but the heat dissipation of the internal step-down circuit of the mobile phone.

Although it is the same machine, the USB power supply interface voltage of the desktop and notebook is not the same, the USB power supply voltage of the notebook is about 5V, which is the most suitable charging voltage for the general mobile phone. But it should also be known that some devices do not have such a weak voltage requirement. For these devices, the use of laptop charging is obviously not suitable, and the use of the notebook as a mobile power supply obviously also consumes a large amount of power in the notebook.

Although various other devices provide a USB interface, most of these interfaces are used in data communication. I suggest that you use a dedicated charger for charging.

Charging treasure market 2017-2022 ushered in rapid growth

December 17, 2018 by keikeilaiy  

According to a report by market research firm ReportsnReports, the charging treasure market is expected to reach $25.016 billion in 2022.


“The compound annual growth rate in 2017-2022 is as high as 21.22%”


According to the report, during the period of 2017-2022, the development of the charging treasure market will show a rapid growth momentum, with a compound annual growth rate of 21.22%, and by 2022 the market value is expected to climb to 25.016 billion US dollars. The main drivers include increased use of electronic devices such as smartphones and tablets, advances in technology, and lack of electricity in individual countries. The main limiting factors include the continuous expansion of battery capacity and the increasing popularity of wireless charging technology in consumer electronics.


“The charging treasure market with a capacity range of 12500-15499 mAh will see rapid growth in the near future”


The charging treasure market with a capacity range of 12,500-15,499 mAh is expected to achieve rapid growth between 2017 and 2022. The battery capacity of mobile devices and laptops has increased, requiring high-capacity charging treasures to charge these devices.


"Smartphones occupy the largest share of the charging treasure market"


Smartphones will become the largest consumer market for charging treasures. The deep penetration of smartphones and the widespread use of Internet services tend to consume battery power quickly. The need for more charging treasures and longer power-over capacity has become a catalyst for this market.


“Europe will be the fastest growing region”


European manufacturers hope to continue to seek new growth opportunities based on the development of new technologies. In addition, a large number of highly skilled consumers in the region have high disposable income, which contributes to the growth of the European charging treasure market.


Major players in the charging treasure market


The industry ecosystem of the global charging treasure market mainly covers: phone accessories suppliers, OEMs, online retail companies and portable charging treasure distributors. The main participating companies include: Xiaomi Technology (China), Lenovo (China), Microsoft (USA), Panasonic (Japan), Sony (Japan), Delta Technology (Taiwan), Asustek Computer (Taiwan), Ambrane India (India), An Technology (USA), Intex Technologies (India), OnePlus Technology (China) and uNu Electronics (USA).


  area of ​​research:


The research report divides the charging treasure market based on factors such as capacity range, number of USB ports, energy, battery type, application and region. The market has been divided into 500-3499 mAh, 3500-6499 mAh, 6500-9499 mAh, 9500-12499 mAh, 12500-15499 mAh and 15500 mAh based on the capacity range. Based on the number of USB ports, the main product interface types are divided into one USB port, two USB ports, and two or more USB ports. The power banking market has been subdivided on the basis of electricity and solar energy. The battery type based charging treasure market has been divided into lithium ion batteries and lithium polymer batteries. The charging treasure market has been applied to smart phones, tablets, portable media devices, digital cameras, notebook computers, etc. (handheld gaming devices, global positioning system (GPS) navigators, e-readers and smart watches). Minute. The report covers four major geographic regions – the Americas, Europe, Asia Pacific (APAC) and the rest of the world (RoW).

About mobile phone charger knowledge

December 7, 2018 by keikeilaiy  

We are now inseparable from digital electronic products, whether it is traveling or daily work and life, and these need more or less power to maintain, this time the charger is our must-have product, today, mobile phone accessories wholesale suppliers give Let's take a look at the charger knowledge.


    The charger usually refers to a device that converts alternating current into low-voltage direct current. It includes a control circuit that meets the charging characteristics, such as current limiting and current pressure. The battery is included in the general product! Chargers are used in a wide range of applications.


    Master the following points:


    First, the degree of adequacy

    A sufficient battery is the main function of the charger, to what extent, 50%, 70%, 90%, or 100%, which reflects the utilization of battery capacity. Charging 50% of 2000mAH NiMH batteries is equivalent to 1000mAH batteries.


    Second, versatility

   The charger's applicable battery capacity range reflects the general level and a small range of chargers. When the user has a battery with a smaller capacity earlier or a new battery with a higher capacity, it is often necessary to purchase multiple chargers. The versatile charger can adapt to a large battery capacity range with only one, which can be applied not only to the previous and current battery capacity, but also to higher capacity batteries in the future.


    Third, the control method

   Manually controlling the charging time, in actual use, it is often negligent and overcharged, and fully automatic control charging is extremely convenient for the user.


    Fourth, fast charging performance

    The charger provides a fast charge or an emergency charge stream, and the battery is used in a short time and is quick to use.


    Five, charging power

    Nickel-cadmium-nickel-metal hydride batteries should use a constant current source charger.


    Sixth, daily charging capacity

    The charger's 24-hour maximum charging capacity reflects the charging capability. 100mA charging current, charger with 2 batteries, daily charging capacity is 3200mAH, 100mA charging 4 battery charger, daily charging capacity is 6400mAH, 300mA charging 4 battery charger daily charging capacity up to 20000mAH, daily charging The higher the capacity, the stronger the charging ability.

Why are the charger prices so different?

December 3, 2018 by keikeilaiy  

In the mobile phone to replace the computer to become the mainstream of the market, the mobile phone accessories wholesale market industry has also developed, including mobile phone chargers. So what charger is a good charger? Why are the same mobile phone chargers, the price can actually be several times different!


1. Brand: Will big-name chargers be more expensive?

General chargers can be classified into three types: original / brand / miscellaneous charging head, the original charging head is generally more expensive, but will basically send when buying the data line; brand charging head refers to the third-party manufacturers specializing in digital accessories produced Data cable, quality will be more assured; miscellaneous charging head inferior charging head, no certification, quality is not guaranteed.

Sorted by price, from high to low are original, brand, and miscellaneous. But there are exceptions: the brand data line will also introduce some basic models of the volume, the quality of the big factory to endorse, the price is very close to the people, so it has become the choice of many consumers

2, the number of USB ports

   This is easy to understand: our most common single-port charging head is cheaper. If the number of interfaces is 2 or 3, the price is generally higher than the number of USB ports.

   The value of this multi-port charging head is that when you have a small plug and can not insert 2 or even 3 charging heads, it only takes up one mouth, which is suitable for families with more mobile phones or tablets.

3. Is it fast charging?

   In this era of fast charging becoming a standard, mobile phones with fast charging function can save us a lot of time, of course, the charging head is certainly more expensive. After all, it can carry more power and current, and the charging speed will be faster.

In addition to fast charging, the price of the 1A charging head and the 2A charging head are definitely different, and the latter is more expensive.

4. Compatibility: Can the charging heads be used interchangeably?

   Generally speaking, compatibility, everyone can think of the compatibility of Apple and Android system, this impact on the charging head is not big, basically if you buy a big brand of data lines, there is a probability that Apple can use Android can not be used low. So we specifically refer to the compatibility of fast charge.

    There are many kinds of fast charge agreements, such as VOOC/FCP/QC/PED. These fast charge agreements are basically separate and completely incompatible. Give a chestnut: You use Meizu's fast charge head to charge Qualcomm QC's mobile phone, you can only charge the phone at the usual speed.

    If the charging head has over-current and over-voltage protection, and even smart identification matching current, the price will be relatively more expensive according to the most suitable power of your mobile phone.

What are the main characteristics of the car charger?

November 28, 2018 by keikeilaiy  

With the development of the automotive industry, car chargers are widely used, showing the characteristics of versatility, portability, and fashion. In the market, there are many influential car chargers. However, many people are not clear about the characteristics of the car charger. Let's take a look at the technicians from Shenzhen charger manufacturer Meishun and the following:

The car charger is a convenient accessory for charging the digital product anytime and anywhere with the car charger. Some high-end car chargers generally include two USB ports to charge two digital products at the same time. These products generally have overload protection, short circuit protection, high voltage input protection, high temperature protection, and four safety protection functions to ensure safe use. The variety of car charger functions has the following characteristics:

1, versatility: Meishun and car charger models are diverse; single USB and dual USB output interface, can charge multiple electronic products.

2. Portability: Portability is a major trend in the development of today's electronic products. It is designed with a unique appearance and is extremely convenient to carry around.

3. Fashion: For the high-end consumer group of car owners, the fashion of car chargers is also valued by manufacturers. Generally used ABS material and piano paint process, not only stylish, but also very good.

4. Safety: All products of the company have passed the test of international safety performances such as CCC, UL, FCC and CE, which strongly guarantee the safety of use performance and consumer rights.

How to choose a safe charger?

November 23, 2018 by keikeilaiy  

1. About the promotion options for charging:

The main one is to choose by two factors. The first one is power. The sufficient power will be the focus of the charging speed increase. The other one is the intelligent output on the current. The intelligent output can disintegrate the current limit of the digital device. And at the charging speed and safety. The smart current output also has a very important point. Its main principle is that it can detect how much current is needed by the connected charging device and provide the corresponding current. Therefore, he can break through the current limit through the most suitable output of the current, and achieve the best charging current of the access device such as the mobile phone during charging, so that it can make the charging speed reach the best peak value.

2. Does the digital device have a current limit:

Many digital manufacturers have restrictions on the charging current of their own products, that is, they must use the original phone charger to charge, otherwise the current input will be rejected. In terms of security, this setting is very good, but in terms of convenience, it is extremely unhumanized. In this case, we can choose to choose with a smart current output.

3, charger appearance material selection:

The appearance of the charger is generally selected, and the anti-high temperature fireproof material is used as much as possible, which is more conducive to damage caused by the charger being used for too long. If the inferior material is used for charging, it will be easy to have a direct melting of the outer shell when it is heated for a long time.

4, the charger's current power selection:

The input of the general mobile phone charger is 5V1A, which is the current power required by 5W. The tablet computer basically uses the current input of 5V2.1A, so its current power is 10.5W. There are also a lot of chargers in the market. Actually, the power is completely insufficient. It only meets a certain power output on the output of the interface, but the power does not reach the corresponding value. So there is a choice in power.

5. About current and voltage overload protection:

The main function of the current-voltage overload protection function is to perform a function of automatically stopping the current and voltage due to excessive voltage during charging. If the current and voltage exceed a certain limit, the charger will stop working, of course, if the current is violent. In the case of increase, it is not excluded that the charger will be directly damaged. However, in such a case, the current-voltage overload protection also serves as a point to protect the device in charge, so it is also necessary to take this into consideration in the purchase.

6, convenience considerations, more than one machine to choose:

There are more and more digital devices such as mobile phones. In many cases, we often fully charge a mobile phone charger or a tablet charger on a single plug. That is, in our case, is this charging method really OK? Then if there are more devices that need to be charged, what should you do? So a convenient choice for the charger behind, it should be in the multi-port charging.

What kind of material is better for the outer casing of the power adapter?

November 16, 2018 by keikeilaiy  


In recent years, the variety of electronic products has become more and more abundant, and the use of power adapters has become more and more extensive. I don't know how much you know about the materials of the power adapter housing. Below I plant to introduce you to the material selection of the power adapter housing:1. Characteristics of ABS plastic

  Acrylonitrile butadiene Styrene copolymers (ABS) is a thermoplastic polymer structure with high strength, good toughness and easy processing. It can be normal in the environment of -25 ° C ~ 60 ° C, and has good formability, the surface of the processed product is smooth, easy to dye and electroplating. Performance characteristics of ABS material: 1 low strength, tensile strength 43MPa, bending strength 79MPa. 2 is not resistant to temperature, long-term use temperature should not be higher than 60 degrees Celsius. 3 fluidity, coloring and surface coating and plating performance are good. ABS materials are used in household appliances, panels, masks, assemblies, accessories, etc., especially household appliances, such as washing machines, air conditioners, refrigerators, electric fans, etc., the amount is very large, and in plastic modification, the use is also very wide.

2, the characteristics of PC + ABS plastic

  Acrylonitrile-Butadiene-Styrene (ABS) is a general-purpose thermoplastic polymer. The synthetic materials of Pc and ABs, which have the characteristics of the former two, have excellent molding processing properties, good fluidity and high strength (wearing strength 56 MPa, bending strength 86 MPa). PC+ABS material is easy to process, has good dimensional stability and surface gloss, is easy to apply and color, and can be used for secondary processing such as metal spraying, electroplating, welding and bonding. Because the characteristics of ABS combines the characteristics of its three components, it has excellent comprehensive performance and becomes one of the preferred plastics for electrical components, home appliances, computers and instrumentation.

3, the characteristics of PC plastic

  Polycarbonate (PC) is a tough thermoplastic resin. It is characterized by high strength, tensile strength of 69 MPa and bending strength of 96 MPa. 2 high temperature resistance, long-term use can withstand 130 degrees Celsius temperature environment. 2 good transparency, non-toxic. 4 raw material color matching and surface coating is not as good as ABS. PC materials have good and constant electrical insulation over a wide range of temperatures and humidities and are excellent insulating materials. At the same time, its good flame retardancy and dimensional stability make it a broad application field in the electronic and electrical industry.

What should I pay attention to when using a non-original charger?

November 5, 2018 by keikeilaiy  

When we buy a new mobile phone, we will give away a lot of original phone accessories, but in life, we often use non-original mobile phone accessories, including data cables and mobile phone chargers. What should I pay attention to when using a non-original charger? We all know that since the mobile phone determines the charging current when charging, it is the mobile phone itself. Therefore, when charging, the mobile phone generally automatically detects the load capacity of the charger and determines the current input amount according to its own power. But I have to say that there are some charging problems that still need attention. So what do you need to pay attention to when using a non-original charger?

1. When using a high-power charger to charge a low-power mobile phone, is it harmful to the mobile phone? The hazard is small because the phone has a current adaptive function. Therefore, when the mobile phone is in the charging mode of 5V/2A, if the charger is charged by the 9V/2A charger, the charger will automatically recognize the charging specification of 5V/2A. Another example is the high-powered iPad charger that can charge a small-powered iPhone and work with the iPhone's current standard.


2. Is the low-power charger charging a high-powered mobile phone and hurting the mobile phone? The agreement does not hurt the machine, such as the iPhone8 supports fast charge, but the 5V/1A charger protocol is configured, this will not affect. If there is no charger for the agreement, the charger will be "small horse-drawn cart", at full speed, causing the phone to heat up and hurt the charger. So usually, don't charge a 5V/2A and higher power phone with a 5V/1A charger.

3. Fast charge charger to charge non-fast charge mobile phone, will it hurt the mobile phone? At present, some fast-charge chargers on the market, in addition to having fast charging power, will retain the standard charging power of 5V/2A, such as Huawei's P10 and Samsung's S8. This setting is mainly to prevent us from using the fast charge charger on a mobile phone that does not have a fast charge function, resulting in accidental damage to the mobile phone.


4. What is the choice of third-party brand chargers? Due to the compatibility of third-party brands, it is basically a universal mobile phone. However, the charger with the highest candidate matching degree can be purchased. For example, if the mobile phone supports QC3.0 or Huawei's FCP fast charging protocol, then the third-party brand charger of QC3.0 and FCP protocol can be selected in a targeted manner.

Is it harmful to the phone for a full night of continuous charging?

October 30, 2018 by keikeilaiy  

At present, the charging IC of the mobile phone has a relatively complete mechanism. As long as the original phone charger and data cable are used, even if it is a night, it is fine, because it has already entered the over-current protection.

However, one problem to be aware of is that if the mobile phone is in a low-power standby state, it will not be damaged, but if the mobile phone itself has a lot of backgrounds and is running on the network, this will cause repeated charging. The damage to the battery of the mobile phone is relatively large.

This is because the power consumption itself is severe, and it is quickly less than 100% after being fully charged, so that the charger will enter a new charging behavior again, resulting in repeated calls for the activity of its lithium battery. Many electronic products are used more, and the lifespan is naturally reduced. The battery is also the same.

If you need to charge all night, for the protection of the battery, here are a few suggestions for your reference -

1. It is recommended to use a wireless charger. However, since there are not many mobile phones supporting wireless charging in the world, only one reference suggestion is made. The advantage of wireless charging is that the current is low and the flushing is full, which will reduce the repeated cyclic charging caused by the discharge after being fully charged. the behavior of.

2. Don't get too close to the bed. Although charging is a safe process as a whole, after all, mobile phones, charging accessories, etc. have been compulsory certification, but for absolute safety, it is best not to let the equipment charged all night too close to the bed, not next to Place too much debris to avoid unnecessary damage.

3. Don't let the phone be covered. For example, don't put it under the bed or under the pillow or even under the quilt. Do you know what is the most harmful to the lithium battery? In fact, it is high temperature. This practice will cause the battery to heat up during the charging process, which is very harmful to life and healthy behavior.

5, it is best to use original accessories. In many cases, the occurrence of accidents in mobile phone charging and the use of uncertified three-party accessories often have a great relationship.