Do you want to ask how to distinguish the authenticity of bull button batteries? Distinguish it from the battery appearance, battery logo, and battery performance.

1. Identify the battery from its appearance. Most of the surface of the negative electrode of this type of battery is plated yellow, giving people a "gold" feeling. Rust spots are prone to appear on the bottom of the positive electrode casing.

2. Identify it from the battery logo. The fake battery has no trademark, no origin, no production date, and no inspection certificate. It only has the English word "BUTCELL" on the battery, giving the illusion of being made in a foreign country.

3. Identification of battery performance. Most alkaline germanium batteries have low capacity, usually less than the national standard 1.55V, and have a short service life. Easy to leak and corrode electrical appliances: poor voltage load characteristics, battery discharge curve shows a sharp downward slope: easy to produce air bloating, causing the battery to "bulge."

Button batteries are also called button batteries. The appearance of a battery is like a small button. Generally speaking, it has a larger diameter and a thinner thickness. Button batteries are classified according to their appearance. The corresponding battery categories include cylindrical batteries, square batteries, and special-shaped batteries.