Home / Shop / Batteries, Testers and Tools / ZPower 312 View cart “Westone TRU Hearing Protection” 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 312 $27.99 Read more Stay Dri Dehumidifier Jar $9.95 Add to cart Clarity Alto Plus Digital Corded Phone with Caller ID $169.95 Add to cart Activair Battery Tester $15.00 Add to cart