basic introduction

Button cell (button cell), also known as button battery, refers to a battery with a shape like a small button. Generally speaking, it has a larger diameter and a thinner thickness (relative to a cylindrical battery such as the No. 5 AA battery on the market). Button batteries are divided into batteries based on their appearance. The corresponding batteries are classified into cylindrical batteries, square batteries, and shaped batteries.

Button batteries generally have two types, rechargeable and non-rechargeable.Charging includes 3.6V rechargeable lithium ion button batteries (LIR series), 3V rechargeable lithium ion button batteries (ML or VL series); The rechargeable batteries include 3V lithium manganese button batteries (CR series) and 1.5V alkaline zinc manganese button batteries (LR and SR series).

The more common button batteries are the AG3, AG10, and AG13 batteries used in toys and gifts, and the batteries on the computer motherboard. The model number is CR2032, which is used in the CR2025 in the electronic dictionary, and CR2016 or SR44, SR626 on the electronic watch.

National certification standards

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