For mobile phone accessories, the battery is the most important, but consumers often don’t pay much attention to the battery when buying mobile phones. This makes some JS play tricks on batteries, substituting them as good ones, and making profits; but for consumers, economic losses are a trivial matter. If the battery quality is not up to standard and affects the use or even causes damage to the mobile phone, That would be big trouble. 1. The appearance of the battery is neat, the outer surface has a certain roughness and feels comfortable, the inner surface feels smooth, and fine longitudinal scratches can be seen under the light; 2. The manufacturer's words should have a clear outline, and the anti-counterfeiting mark should be bright and look good. Three-dimensional sense, the battery label has clear writing and a battery part number that is consistent with the battery type; 3. The battery label uses secondary printing technology. When viewed from an inclined plane under a certain light, the color of the barcode part is darker than other parts, and There is a concave and convex feeling when touched by hand; 4. The width of the original battery electrode is equal to that of the mobile phone battery piece, and there are " ", " - " signs below the battery electrode. The isolation material between the battery electrode pieces is consistent with the shell material, but not integrated; 5 . The original battery feels comfortable when inserted into the mobile phone and can be easily installed. The pressing part of the battery is properly and firmly locked; 6. The metal contacts of the original battery are made of high-quality copper sheets, which are reflective only when viewed from the front, but from other angles. If you look at it, they are all relatively dim; in addition, in addition to identifying by appearance, if the battery is marked as LI battery, since LI battery is generally heavier than nickel-metal hydride batteries, you can also identify it by the feel. JS uses nickel metal hydride batteries to pretend to be LI batteries. 1. Compare the battery capacity. General cadmium-nickel batteries are 500mAh or 600mAh, and nickel-hydrogen batteries are only 800-900mAh. The capacity of lithium-ion mobile phone batteries is generally between 1300-1400mAh, so the lithium-ion battery will last about as long as a nickel-hydrogen battery after it is fully charged. 1.5 times that of nickel-cadmium batteries and about 3.0 times that of nickel-cadmium batteries. If you find that the lithium-ion mobile phone battery pack you purchased does not work as long as advertised or specified in the manual, it may be counterfeit. 2. Look at the plastic surface and plastic material. The genuine battery has a uniform wear-resistant surface and is made of PC material, which is not brittle. The counterfeit batteries are not wear-resistant or are too rough and are made of recycled materials, which are prone to brittleness. 3. All genuine mobile phone batteries should be neat in appearance, without unnecessary burrs, and have a certain roughness on the outer surface and feel comfortable to the touch; the inner surface should be smooth to the touch, and fine longitudinal scratches can be seen under the light. The width of the battery electrode is the same as that of the mobile phone battery. The corresponding positions below the battery electrode are marked with ?+? and ?-? marks. The isolation material of the battery charging electrode is the same as the shell material, but it is not integrated. 4. For original batteries, the surface color and texture of the battery should be clear, uniform, clean, and without obvious scratches or damage; the battery label should be printed with the battery model, type, rated capacity, standard voltage, positive and negative electrode marks, and the name of the manufacturer. . When putting on the phone, it should feel smooth and non-obstructed, should be appropriately tight and fit well with the hand, and the lock should be reliable; the hardware should have no obvious scratches or black or green spots. If the mobile phone battery we buy does not conform to the above phenomenon, we can initially conclude that it is a fake. 5. At present, many mobile phone manufacturers are also working from their own perspective to improve the level of technology to make mobile phones and their accessories more difficult to counterfeit, thereby further curbing the proliferation of counterfeit and parallel imports. Generally, regular mobile phone products and their accessories must be consistent in appearance. Therefore, when we install the purchased mobile phone battery, we should carefully compare the color of the phone body and the battery bottom case. If the color is consistent, it is an original battery. Otherwise, the battery itself is dull and dull, and it may be a fake battery. 6. Observe abnormal charging conditions. Generally, genuine mobile phone batteries should have an overcurrent protector inside, which will automatically cut off the circuit when an external short circuit causes excessive current to avoid burning or damaging the phone; lithium-ion batteries also have an overcurrent protection circuit, which can be used when non-standard electrical appliances are used. , when the power supply current is too large, the power supply will be automatically cut off, resulting in failure to charge. Under normal battery conditions, it can automatically return to the conductive state.

If a nickel-cadmium or nickel-hydrogen battery block is used to fake 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, 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 a nickel-cadmium or nickel-hydrogen battery.