Despite the hot weather, the communication market is still very lively. People mostly pay attention to the quality of mobile phones when buying mobile phones, and ignore the problem of mobile phone batteries . It is understood that the current counterfeit mobile phone battery in the communication market is widespread, and consumers will buy the inferior battery home without paying attention. In order to enable ordinary consumers to master the authenticity method of identifying mobile phone batteries, Jiangsu Quality Supervision experts have made detailed answers on how to purchase mobile phone batteries.

How many mobile phone batteries are there in the market?

There are currently three types of batteries commonly used in mobile phones, namely nickel-cadmium batteries, nickel metal hydrogen batteries and lithium-ion batteries. The nickel-cadmium battery is the first generation of mobile phone batteries. It consists of two plates, one made of nickel and the other made of cadmium. These two metals react reversibly in the battery, so the battery can be recharged. However, it has a low capacity, has a memory effect, requires frequent discharge to maintain capacity, and environmental pollution in the manufacturing materials. Currently, such batteries have been basically eliminated.

The capacity of the second-generation nickel-hydrogen battery is 30% to 50% higher than that of the nickel-cadmium battery, and the talk time of the mobile phone is also extended by 30%. Its manufacturing materials have little environmental pollution (does not contain cadmium metal), and people used to call it an environmentally friendly battery. However, nickel-metal hydride batteries also have self-discharge. At normal room temperature, the nickel-hydrogen battery has a power loss rate of 1-3% per day. After a fully charged nickel-hydrogen battery is placed for several weeks, it should be recharged before use.

The third type is a lithium ion battery, which is a mobile phone battery marketed in recent years. Due to its light weight, high energy, and no self-discharge, the battery has been welcomed by consumers and is now a development trend of mobile phone batteries. The advantages are: no memory effect, no need to discharge, long use time; high working voltage. Generally, the voltage of a single-cell lithium-ion battery is 3.6V, and the voltage of a nickel-hydrogen-nickel-cadmium battery is 1.2V, which is three times different; the volume is small, the weight is light, and the specific energy is high. The specific energy of a lithium-ion battery can be more than twice that of a nickel-cadmium battery. Compared with the same capacity nickel-hydrogen battery, the volume can be reduced by 30%, the weight can be reduced by 50%, and the life is long. The life of high-quality lithium-ion batteries can reach more than 1000 times, which is much higher than other types of batteries; safe and fast charging. Lithium-ion batteries are treated with special technology, so they can be quickly and fully charged within 3 hours, and the safety performance is greatly improved; the operating temperature range is allowed to be wide. Lithium-ion batteries can operate between +60 °C. High temperature discharge performance is superior to other types of batteries.

How to buy mobile phone batteries correctly?

How to buy a mobile phone battery correctly? Of course, it should start with the concept and understanding. For a battery that is flammable and explosive, safety should be first placed at all times. Therefore, consumers must first abandon the simple pursuit of low prices, and look at the purchase of mobile phone batteries with a more rigorous and serious attitude.

1. The place to buy must be formal. Buying a regular mobile phone battery, choosing the right way to shop is the easiest way to buy products in regular outlet stores, online sales outlets, professional mobile phone accessories dealers, we can not only get reliable protection and greater product selection space. , can also enjoy professional pre-sales and after-sales service. On the contrary, the purchase of mobile phone batteries in unreliable places, not only the quality of the products themselves are uneven, it is difficult to get a proper solution to problems, and can not protect their legitimate rights and interests.

2. Compatibility should match. Compatibility is the key to choosing a mobile phone battery. The regular mobile phone battery will indicate the corresponding mobile phone model. Consumers can also choose the parameters according to the actual situation of their mobile phone, such as battery compartment size, electrode size, and mobile phone nominal voltage. In particular, the electrode and the voltage are two points, which are related to the stability of the battery work, and must be carefully checked when purchasing. The actual test is also a good way to check compatibility. Put the battery into the phone, check if it can boot normally, and shake the phone to check the stability of the battery contact. If it fails to pass the normal test, it is naturally impossible to satisfy the user's future use.

3. The manufacturer must be original. Although the assembled battery has obvious advantages in price, there are already many well-known assembled battery brands worthy of choice, but we still recommend consumers to choose the original battery. The original battery prices of after-sales service centers and official outlet stores are generally higher, but in some stores and regular online stores, the price of original licensed batteries is not unacceptable. Instead of spending a lot of energy on the quality and compatibility of the assembled battery, it is better to choose an original battery, saving time and worry, safety and after-sales can also be guaranteed.

4. The warranty book should be perfected. Regular boxed mobile phone batteries have built-in battery inspection files, or printed directly on the box, which includes the parameters of the mobile phone, so consumers can see at a glance. At the same time, at the time of purchase, we should also ask the dealer for the warranty period commitment as with other digital products. The warranty card must be filled in carefully to ensure the after-sales guarantee.

Buy mobile phone battery, pay attention to capacity and voltage

The news about the "mobile phone explosion" is endless, and the fake and shoddy battery is the culprit leading to the explosion of mobile phones. At present, most of the batteries used in mobile phones are lithium batteries. Experts remind consumers to pay attention to the following points when purchasing mobile phone lithium-ion batteries: First, look at the capacity of the general nickel-cadmium battery is 500mAh or 600mAh, nickel-hydrogen battery is also 800-900mAh; The capacity of lithium-ion mobile phone batteries is generally between 1300-1400mAh, so the lithium-ion battery is about 1.5 times longer than nickel-hydrogen battery and about 3.0 times that of nickel-cadmium battery. Second, look at the appearance of genuine batteries whether the wear surface is even, whether the use of PC material, no brittle phenomenon; counterfeit battery without anti-wear or too rough, using recycled materials, easy to crack. The surface color of the genuine mobile phone battery is clear, uniform, clean, and has no obvious scratches and damage. The hardware piece has no obvious scratches and blackening and greening. The color of the battery bottom case is the same as that of the mobile phone body. It is well matched with the mobile phone and the lock is reliable. Third, look at the logo original battery label should be printed with the battery model, type, rated capacity, standard voltage, positive and negative signs, manufacturer name. Fourth, look at the protection device genuine mobile phone battery should have an overcurrent protector, in the case of external short circuit and other causes the current is too large, automatically cut off the circuit, so as not to burn or damage the phone. If during the charging process, the battery is found to be severely hot, smoke, or even explode, the battery must be false. Fifth, look at the anti-counterfeiting mark, such as NOKIA under the sticker of NOKIA original battery. The anti-counterfeit trademark of Motorola battery is diamond-shaped, and it has a three-dimensional effect from any angle. On the contrary, the anti-counterfeiting mark is dim and the stereoscopic effect is insufficient, and it may be a fake. 6. Measuring voltage If a nickel-cadmium or nickel-hydrogen battery block is used to counterfeit a lithium-ion mobile phone battery block, it must be composed of five single cells. The charging voltage of a single battery generally does not exceed 1.55V. When the total charging voltage of the battery block is lower than At 8.0V, it may be a nickel-cadmium or nickel-hydrogen battery.

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