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Compare the battery capacity. The general cadmium nickel battery is 500mah or 600mah, and the nickel hydrogen battery is only 800-900mah; The capacity of lithium-ion mobile phone batteries is generally between 1300-1400mah, so the use time of lithium batteries after full charge is about 1.5 times that of nickel hydrogen batteries and about 3.0 times that of nickel cadmium batteries. If you find that the working time of the lithium-ion mobile phone battery pack you bought is not as long as that advertised or specified in the manual, it may be counterfeit.
Look at the plastic surface and plastic material. The anti-wear surface of genuine battery is uniform, and PC material is used, without embrittlement; The fake battery has no abrasion proof surface or is too rough. It is made of recycled materials, which is easy to crack.Measure the charging voltage of the battery block. If cadmium nickel and hydrogen nickel battery blocks are used to fake lithium-ion mobile phone battery blocks, they must be composed of five single batteries. The charging voltage of a single battery generally does not exceed 1.55V, and the total voltage of the battery block does not exceed 7.75v. When the total charging voltage of the battery block is lower than 8.0V, it may be nickel cadmium or nickel hydrogen batteries.
For the original battery, its surface color and texture are clear, uniform, clean, and free of obvious scratches and damage; The battery mark shall be printed with the battery model, type, rated capacity, standard voltage, positive and negative pole mark and manufacturer name. The handle should be smooth without blockage, with appropriate tightness, good coordination with the hand, and reliable locking; The hardware pieces shall be free of obvious scratches, blackening and greening. If the mobile phone battery we bought does not conform to the above phenomenon, we can preliminarily conclude that it is a fake.
From their own point of view, many mobile phone manufacturers have also made efforts to improve the process level to improve the difficulty of counterfeiting mobile phones and their accessories, so as to further curb the proliferation of fake and parallel products. Generally, regular mobile phone products and their accessories must be consistent in appearance. Therefore, if we install the mobile phone battery we bought back, we should carefully compare the body with the battery bottom shell. If the color is the same, it is the original battery. Otherwise, the battery itself is dim and lusterless, which may be a fake battery.
Observe the abnormal condition of charging. Generally, the authentic mobile phone battery should have an overcurrent protector inside, which will automatically cut off the circuit in case of excessive current caused by external short circuit, so as to avoid burning or damaging the mobile phone; Lithium ion battery also has overcurrent protection circuit. When using non-standard electrical appliances, the power supply will be automatically cut off when the AC current is too large, resulting in failure to charge. Under normal conditions, the battery can automatically return to the on state. If, in the process of charging, we find that the battery is seriously heated, smoking, or even exploding, it means that the battery must be fake.
With the help of special tools. Facing the increasing variety of mobile phone batteries in the market, and the increasingly sophisticated counterfeit technology, some large companies are also constantly improving anti-counterfeiting technology. With the improvement of anti-counterfeiting technology, it is difficult for us to identify the true and false from the appearance.
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