Identification of mobile phone batteries 1. The length of standby time is an important indicator of battery quality. The length of battery standby time is determined by the balance of a single rechargeable battery. The standby time of a real battery should be basically the same as that indicated in the manual. Fake is only half the time of identification. Some inferior batteries are assembled with second-hand batteries and new packaging. If the seller can't guarantee that the standby time is consistent with the instructions, he can't buy this battery. Some sellers swear, in fact, he doesn't know the actual capacity of the battery, but he just dictated it casually. This kind of battery is generally made of inferior batteries. If you find that the standby time is short after purchase, you should return it immediately. Second, the battery capacity of mobile phone batteries is generally 1000 mAh/ hour or 1000 mAh. Some fake batteries have no capacity label at all, and the label is difficult to identify. You can also take the battery to the mobile phone repair shop to measure the current to distinguish the authenticity. Now everyone uses lithium batteries. Lithium batteries are made up of several batteries with the size of No.5 and No.7 in series, equipped with switching devices and protection circuits. So it has a certain weight. If the lithium battery you buy is too light, it means that the battery capacity is insufficient and there may be something wrong with the battery. Generally, the weight of 900mah lithium battery cell is 35g. If the weight of a battery cell plus other equipment and battery case is less than 35g, then the battery may be fake. Third, the safety of mobile phone batteries is flammable and explosive. If there is no protective circuit inside the battery, it is easy to deform, leak or even explode. However, in order to attract consumers at low prices, many inferior batteries have removed this circuit protection board to earn more profits. There are so many unsafe batteries on the market that it is difficult for everyone to identify them from the appearance. It's best to go to a regular telecom mall to buy it. At present, there are three kinds of mobile phone batteries on the market: lithium-ion batteries, nickel-hydrogen batteries and nickel batteries. Lithium-ion battery has the largest capacity, long standby time and light weight, and is the mainstream variety of mobile phone batteries. So all of the above are mainly lithium batteries. The common problem of distinguishing fake and inferior batteries by appearance is: what is the core component in the battery? The quality of the battery chip is poor, the charging is insufficient, the discharge time is short, and the anti-destruction performance is poor. The marked battery capacity does not match the actual situation. At present, the market is full of fake and shoddy mobile phone batteries, which harms the interests of many consumers. Authentic mobile phone batteries generally have the following appearance characteristics: the battery label adopts secondary printing technology. In a certain light, the color of the bar code part is obviously darker than other parts when viewed from the inclined plane, and it feels slightly convex when touched by hand. Many original batteries have this feature. The white part of the surface of the genuine battery label is lightly scratched with a metal object, and there are traces similar to pencils. The battery case is made of special material, which is very strong and not easy to be damaged. In general, it is not easy to open the battery case. The battery has a neat appearance and no redundant burr. The outer surface has a certain roughness, which makes it feel comfortable and the inner surface feels smooth. Fine longitudinal scratches can be seen under the light. The width of the battery electrode is the same as that of the cell of the mobile phone, and the corresponding positions below the battery electrode are marked with "+"and "-". The isolation material between the battery charging electrode plates is the same as the shell, but it is not integrated. When the battery is installed in the mobile phone, it should feel very comfortable and free. The pressing part of the battery lock is clamped correctly and firmly. The battery label is clearly written with the battery part number corresponding to the battery type. The manufacturer on the battery should have a clear outline, and the anti-counterfeiting mark should have good brightness and look three-dimensional. Weighing weight In general, the weight of lithium-ion batteries is relatively light, and each battery is about100g; Considering this obvious feature, we can't fake it at will. You can use the method of measuring the weight of mobile phone battery to identify whether the battery belongs to the type of "selling dog meat by hanging sheep's head". After all, the weights of other types of batteries and lithium-ion batteries are very different. Simply weigh it. If the battery is too heavy or too far away from the standard of100g, it can be roughly inferred that the battery belongs to counterfeit and shoddy products. The advantages of this method are intuitive identification and simple operation. The disadvantage is that the identification range is limited, and it is only effective for identifying lithium-ion batteries, which is inconvenient to realize. Who carries a steelyard with them? Look at the words and look at the color "here actually refers to carefully observing the appearance color of the mobile phone battery, whether it is consistent with the appearance color of the mobile phone. At present, many mobile phone manufacturers, in order to gain a foothold in the mixed market and protect their own interests, often strive to improve the technological level of mobile phone batteries through continuous technological transformation, in order to suppress counterfeit batteries through high quality and ensure battery sales. Generally speaking, the appearance color of a genuine mobile phone is exactly the same as that of a mobile phone battery. So, we can install the batteries we just selected on the mobile phone and see if the colors between them are the same. If there are obvious differences between the two in appearance color and color, the battery is likely to be a fake and shoddy product. There are several ways to distinguish the texture of mobile phone batteries, and we can completely distinguish the authenticity of the batteries according to whether the texture of the connectors is hard or not. Press the dome-shaped joint of the mobile phone battery hard, and feel the hardness of the joint directly with your fingers. Usually, the connector of genuine mobile phone battery is soft, but it also shows some elasticity, especially when the battery is inserted into the mobile phone, it has a feeling of smoothness, no blockage, free insertion, moderate tightness, harmonious cooperation with the mobile phone and stable and reliable locking; On the contrary, the quality of inferior batteries is harder, and it is not easy to "slide" into the battery slot of mobile phones when loading batteries. The advantage of this method is that it is simple to operate and suitable for "novice" users. The disadvantage is that the recognition accuracy is not high and the recognition range is limited! Packaging identification method Every high-quality mobile phone battery looks neat and clean from the outside, with clear color and texture, and no scratches and damage on the surface shell; Moreover, the label attached to the battery shell should include the model, model, capacity, sign, standard voltage, battery manufacturer name and other parameters. In addition, the hardware contacts on the battery should not have scratches and green or black mold. If the appearance of the mobile phone battery you choose is different from that of the genuine mobile phone battery described above, you can basically assume that the battery you buy at present is a fake. Charging observation generally speaking, mobile phone batteries with superior performance have over-current protection devices inside. Once a short circuit occurs outside the mobile phone, resulting in a large impact current, the over-current protection device can automatically cut off the charging circuit to prevent the mobile phone battery from being damaged or burned due to the impact of large current. There is probably no overcurrent protection device in inferior batteries; In this way, after charging for a long time, the battery case may be burned, and in severe cases, it will smoke. If the battery is not charged for a long time, it will heat up, so ten times the battery is defective. The biggest advantage of this identification method is that it can accurately test the authenticity of mobile phone batteries and is effective for all kinds of batteries. These methods are summed up when chatting with various vendors and a few prawn-level friends. Generally speaking, it is suitable for most mobile phone users to choose batteries. Some methods are stupid, but practical. I hope that when you buy batteries for your love machine, you can buy good and cheap products.