Lincoln Electric CR2450 recommended replacement battery KP4491-1 for all Viking helmets.
- High quality lithium coin battery with 620 mAh capacity to provide long usage life
- Replacement battery for Viking 3350, 3250G, 2450, and 1840 series auto darkening helmets
- Rechargeable through the helmet solar panel
*NOTE: If you have a Viking 3250D, 2450 or 1840 you will need 2 batteries.