Home / Shop / Batteries, Testers and Tools / Activair Battery Tester View cart “Rayovac Proline 675 Hearing Aid Batteries” has been added to your cart. $15.00 Activair Battery Tester Hearing aid battery tester Analog reading shows battery life Features a battery storage compartment Activair Battery Tester quantity Add to cart SKU: ATEST Category: Batteries, Testers and Tools Tag: Copied From Estes Related products 40 Rayovac Premium Batteries Size: 312 Brown $20.00 Read more Hearing Aid Dehumidifier (Fish) $9.95 Add to cart ZPower 312 $40.00 Read more Battery Easy $9.99 Read more