Button Cell / Coin Cell Batteries, names & sizes explained

CR2025 lithium 20mm diameter 2.5mm thick

Size

Coin batteries are as seen in the picture have numbers in their names that indicate Coin batteries normally have numbers in their name that indicate size, in this case “CR2025” 20mm diameter and 2.5mm thick  

Name

The same sized battery may be known by several names usually depending on its chemical make-up. For example, lithium ( Manganese-dioxide lithium) have the “C” prefix, “LiR” for Lithium Rechargeable. There are exceptions e.g. “DL” relates to the manufacturer Duracell

Voltage

Be careful here, under normal circumstances stick to the manufactures intended voltage of the device.  

Additional detail will be added at ArtificerGoods.

Example COIN Batteries Naming table

CR2032 DL2032, ECR2032, BR2032, E-CR2032, LiR2032 Diameter 20mm thickness 3.2mm
CR2025 DL2025, BR2025, LiR2025, E-CR2025 Diameter 20mm thickness 2.5mm
CR2016 CR2016, DL2016, E-CR2016 Diameter 20mm thickness 1.6mm