GP Brand CR2450 3V Battery - Sold per piece Button Cell Lithium Battery
Automatic welding mask batteries, for many different ADF welding helmets.
Buy your welding helmet batteries here. This is probably one of the most common button cell battery sizes on the market.
Battery Part Number: CR2450
Button cell battery is 24mm Dia. x 5.0mm thickness
Please be aware the photo is relatively old typically the "sell by" date on the currect stock is 2034