Button battery, is a commonly used battery in our daily life. It can often be seen in cameras, watches, calculators, toys, etc. It occupies a small area, is light in weight, has long-lasting power supply, and is easy to use, so it has been widely used.

However, most of the time, we throw it away after using it. However, some types of button batteries can be recharged and put into use again. In order to effectively avoid the waste of button batteries and reduce pollution to the environment, then how do we identify What about button batteries?

Button batteries are classified according to one charge or two charges:

A battery. Mainly include LR alkaline battery (1.5v), SR silver oxide battery (3V), ZA zinc air battery (1.4v), CR primary lithium battery (3V), etc.

2nd and 2nd secondary batteries. They are: LIR2 secondary batteries (3.7v), nickel metal hydride batteries (ni-mh), nickel metal hydride cadmium batteries (ni-cd), etc.

Button battery features:

Alkaline button batteries have good discharge effect and are relatively expensive. Rated capacity: 15 mah 140 mah. Used in electronic toys, hearing aids, lighters, watches, etc.

Zinc oxide silver button battery - the best button battery. The capacity is higher than that of carbon and alkaline button batteries. Good voltage stability. (Partial power is 90%, the voltage is stable above 1.45v; after 10% power, it quickly goes straight to Lower discharge. This kind of battery has good anti-leakage effect and is suitable for long-term use. It is used in hearing aids, cameras, watches, calculators and other places.

Additionally, use "zinc electrodes" for button batteries - such as alkaline batteries, silver oxide batteries, and zinc-air batteries. Mercury may be present due to the manufacturing process. So, you also need to look at the battery casing for signs of mercury.

When using button batteries, choose the battery type suitable for the corresponding environmental characteristics according to the actual situation. Try to use mercury-free button batteries; recycle them reasonably and avoid littering to avoid environmental pollution. Distinguish between primary batteries and secondary rechargeable batteries. Reasonable and standardized use.

The above is some information about button batteries. Therefore, for button batteries, which ones can be used for secondary charging and recycling, I wonder if you have any idea?