Home / Shop / Batteries, Testers and Tools / Activair Battery Tester View cart “Single Battery Caddy with Chain” 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 Clarity D704 Dect 6.0 Cordless $99.95 Add to cart Rayovac Proline Batteries Size 10 $27.99 Add to cart Westone DefendEar Digital Shooter $1,250.00 Add to cart Rayovac Proline Batteries Size 13 $27.99 Add to cart