Product name: CR2025 button lithium manganese battery

Item model number: CR2025

Product material: lithium manganese

Battery voltage: 3V

Product weight: 2.5g

Product size (mm): 20*2.5 (diameter/thickness)

Expiration date: see on the outer packaging

Product features: Mercury-free and environmentally friendly, green and safe to ensure that each battery will not produce toxic hazards, allowing you to use more at ease