Home / Shop / Batteries, Testers and Tools / Rayovac Proline Batteries Size 312 View cart “Rayovac Proline 675 Hearing Aid Batteries” has been added to your cart. $27.99 Rayovac Proline Batteries Size 312Size 312 Rayovac Proline (brown tab), Mercury Free Batteries. 3 Cards of 16 batteries per card. 48 Total. Out of stock SKU: IM312-48 Category: Batteries, Testers and Tools Tag: Copied From Estes Related products 40 Rayovac Premium Batteries: Size 13 Orange $20.00 Add to cart Activair Battery Tester $15.00 Add to cart Clarity Alto Digital Corded Phone $159.95 Add to cart Single Battery Caddy with Chain $4.00 Add to cart