Five precautions for purchasing mobile phone batteries

1. Note that the product identification on the battery shell or packaging should use a standardized text description, the battery name, trademark or brand, model specifications, standard voltage, rated capacity, the positive and negative poles of the power supply, warning signs or instructions, the name of the production company or Abbreviations and factory numbers, implementation standards. 2. Note that the battery label adopts secondary printing technology. Under certain light, from the side, it is obvious that the color of the barcode part is darker than the rest. The white part of the label surface is lightly scratched with a metal object, which resembles a pencil. The traces crossed. 3. Note that the battery shell is made of special materials, which is very strong and not easy to damage. The battery cannot be opened by normal means. The appearance is neat and there are no extra burrs. The outer surface has a certain roughness and feels comfortable. The inner surface feels smooth and can be seen under the light bulb. To fine longitudinal scratches. 4. Note that the width of the battery electrode is the same as that of the cell phone battery. The isolation material between the battery charging electrode is the same as the shell material, but it is not integrated; the corresponding position under the battery electrode is marked with +- marks, and the hardware contacts are bright and free of rust spots. 5. Note that when the battery is pushed into the mobile phone, it should feel comfortable and free to move up and down. The pressing part of the battery lock is properly and firmly seated, and is tightly integrated with the mobile phone. As far as the current battery is concerned, lithium-ion batteries are widely used due to their good performance. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: How to extend the battery life of mobile phones