(1), the product identification on the battery shell or package, and the standardized text description should be used, including the battery name, trademark or brand number, model specification, standard voltage, rated capacity, positive and negative poles of power supply, warning signs or descriptions, name or abbreviation of the manufacturer, factory number and implementation standards.

(2) The battery label adopts secondary printing technology. In a certain light, from the side, it is obvious that the color of the bar code part is darker than the rest, and the white part of the label surface is lightly scratched with a metal object, which has traces similar to those of a pencil.

(3) The battery case is made of special material, which is very strong and not easy to be damaged, and the battery cannot be opened by general means. The appearance is neat, there is no redundant burr, the outer surface has a certain roughness and feels comfortable, the inner surface feels smooth, and fine longitudinal scratches can be seen under the bulb.

(4) The width of the battery electrode is the same as that of the mobile phone battery piece, and the isolation material between the battery charging electrode pieces is the same as that of the shell, but they are not integrated; The corresponding position below the battery electrode is marked with "+"and "-",and the metal contact is bright and free of rust spots.

when the battery is pushed into the mobile phone, it should feel comfortable and move freely up and down, and the battery lock should be properly and firmly locked and closely combined with the mobile phone.