Home / Shop / Batteries, Testers and Tools / Activair Battery Tester View cart “Hearing Aid Dehumidifier (Duck)” 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 10 Yellow $20.00 Add to cart Clarity Alto Plus Digital Corded Phone with Caller ID $169.95 Add to cart Hearing Aid Battery Caddy $3.99 Add to cart Battery Easy $9.99 Read more