How many kinds of button batteries?

Answer:

(LIR series), 3V rechargeable lithium ion battery (ML or VL series); non-rechargeable, including 3V lithium manganese button cell (CR series) and 1.5V base Zinc and manganese button batteries (LR and SR series).

Silver oxide button batteries, the button battery has a long life, large capacity and other characteristics, the application is very wide, the largest application. Alkaline manganese button batteries. The battery has a large capacity, low temperature performance, its materials used inexpensive, lower prices, to meet the needs of large current continuous discharge requirements.

Rechargeable lithium-ion button battery is the second button battery, but also a multi-charge and discharge button battery, the nominal voltage: 3.7V, charging voltage: 4.2V.

Lithium-ion button batteries, the common disposable lithium battery is lithium manganese battery (code C), the nominal voltage 3 V.

Button batteries are generally common and no charge of the two.