Analysis of methods to distinguish lithium batteries

1. Look at the plastic appearance and plastic materials: the wear-resistant surface of genuine batteries is average, and PC materials are used, and there is no brittleness; the counterfeit battery has no wear-resistant surface or is too rough, and uses recycled materials, which are easy to brittle. Measure the charging voltage of the battery block. If a nickel-cadmium or nickel-hydrogen battery block is used as a lithium-ion mobile phone battery block, it must be composed of 5 single cells. 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 battery When the total charging voltage of the block is lower than 8.0V, it may be a nickel-cadmium or nickel-hydrogen battery. 2. Regarding the original battery: the color and texture of the battery are clear, average, clean, without significant scratches and damage; the battery logo should be printed with the battery model, variety, rated capacity, standard voltage, positive and negative signs, and the manufacturer name. The hand feel should be lubricated and non-blocking, elastic and suitable, excellent cooperation with the hand, reliable lock; the hardware has no obvious scratches, black and green phenomenon. If the mobile phone battery we bought does not match the above phenomenon, we can begin to conclude that it is a fake. 3. Compare the size of the battery capacity: the general nickel-cadmium battery is 500mAh or 600mAh, and the nickel-hydrogen battery is only 800-900mAh; and the capacity of the lithium-ion mobile phone battery is generally between 1300-1400mAh, so the lithium battery can be used after sufficient power The time 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 hours of the lithium-ion mobile phone battery block you have purchased is not advertised or stated in the book for the length of time, it may be a fake. 4. Many mobile phone manufacturers also set out from their own point of view: by working hard to improve the level of technology, the difficulty of counterfeiting mobile phones and their accessories will be improved, and then the phenomenon of counterfeit parallel imports will be further curbed. Generally, regular mobile phone products and their accessories must be consistent in appearance. Therefore, if we install the battery of the mobile phone we bought, we should carefully compare the color of the body and the bottom of the battery. If the color is the same as the light and dark, it is the original battery. Otherwise, the battery itself is darker and dull, and it may be a fake battery. 5. Observe abnormal conditions of charging: Generally, there should be an over-current maintainer inside the battery of a genuine mobile phone. In the case of excessive current caused by an external short circuit, actively cut off the circuit to avoid burning or damaging the mobile phone; lithium battery also has over-current maintenance When using non-standard electrical appliances, the circuit will also actively cut off the power supply when the AC current is too large, resulting in failure to charge. In the normal state of the battery, it can actively restore to the conductive state. If, in the process of charging, we find that the battery is severely heated or smoking, or even exploded, indicating that the battery must be fake. Disclaimer: Some pictures and content of articles published on this site are from the Internet, if there is any infringement, please contact to delete. Previous: Analysis of the advantages of lithium battery electric vehicles