Home / Shop / Batteries, Testers and Tools / Activair Battery Tester View cart “40 Rayovac Premium Batteries: Size 10 Yellow” 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 Hearing Aid Dehumidifier (Fish) $9.95 Add to cart Westone TRU Hearing Protection $25.00 Add to cart 40 Rayovac Premium Batteries: Size 13 Orange $20.00 Add to cart Stay Dri Dehumidifier Jar $9.95 Add to cart