Home / Shop / Batteries, Testers and Tools / ZPower 312 View cart “Hearing Aid Battery Caddy” has been added to your cart. $40.00 ZPower 312This product is no longer available. Size 312 battery. Rechargeable Out of stock SKU: 52066-1 Category: Batteries, Testers and Tools Tag: Copied From Estes Related products Rayovac Proline Batteries Size 13 $27.99 Add to cart Rayovac Proline Batteries Size 10 $27.99 Add to cart Hearing Aid Battery Tester $7.99 Add to cart 40 Rayovac Premium Batteries Size: 312 Brown $20.00 Read more